The neutral grain spirit is essentially known as rectified spirits or ethyl alcohol.
Meaning of neutral grain spiritneutral grain spirit can be defined as raw material that is very concentrated with alcohol used to produce strong alcoholic products.
neutral grain spirit as the name implies is neutral in nature that is it can be blended with any other alcoholic product.
In conclusion, The neutral grain spirit is essentially known as rectified spirits or ethyl alcohol.
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10.5 mL of an unknown solution are diluted to 80.0 mL. The concentration of the
new solution was determined to be 0.172 M. What was the molarity of the
unknown solution? (Report your answer to two places past the decimal point.
Moodle is looking for a number only, no units.)
Taking into account the definition of dilution, the molarity of the unknown solution is 0.133 M.
DilutionDilution is the process of reducing the concentration of solute in solution, which is accomplished by simply adding more solvent to the solution at the same amount of solute.
In a dilution the amount of solute does not change, but as more solvent is added, the concentration of the solute decreases, as the volume (and weight) of the solution increases.
A dilution is mathematically expressed as:
Ci×Vi = Cf×Vf
where
Ci: initial concentrationVi: initial volumeCf: final concentrationVf: final volumeInitial concentrationIn this case, you know:
Ci= ?Vi= 10.5 mLCf= 0.172 MVf= 80 mLReplacing in the definition of dilution:
Ci× 10.5 mL= 0.172 M× 80 mL
Solving:
Ci= (0.172 M× 80 mL)÷ 10.5 M
Ci= 0.133 M
In summary, the molarity of the unknown solution is 0.133 M.
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The main environmental factors that affect microorganism growth include chemical inhibitors, oxygen, pH, nutrients, moisture and...
The main environmental factors that affect microorganism growth include chemical inhibitors, oxygen, pH, nutrients, moisture and temperature.
What are micro organism?Micro Organism are organism that can be seen with a microscope.
Microorganisms include bacteria, protozoa, algae, and fungi.
Micro organisms exist in its single-celled form or as a colony of cells.
The main environmental factors that affect microorganism growth include chemical inhibitors, oxygen, pH, nutrients, moisture and temperature.
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What is the molar concentration of
a solution that contains
5.0 mol HCl in a total volume
of 10.0 L?
Answer:
0.5 M
Explanation:
Molar concentration : M = n/v
n = moles of solute
v = liters of solution
Hence, 5.0 / 10.0 = 0.5 M
Convert from moles to particles 6.02x1023 particles 1 mole Question 2. 2.7 moles of lithium Question 3. 1.8 moles of sodium chloride
Considering the definition of Avogadro's number:
the number of molecules of lithium is 1.62621×10²⁴ molecules.the number of molecules of sodium chloride is 1.08414×10²⁴ molecules.Definition of Avogadro's numberAvogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.
Amount of molecules in this caseYou can apply the following rule of three, considering the Avogadro's number: If 1 mole of lithium contains 6.023×10²³ molecules, 2.7 moles of lithium contains how many molecules?
amount of molecules of lithium= (6.023×10²³ molecules × 2.7 moles)÷1 mole
amount of molecules of lithium=1.62621×10²⁴ molecules
Finally, the number of molecules of lithium is 1.62621×10²⁴ molecules.
On the other hand you can apply the following rule of three, considering the Avogadro's number: If 1 mole of sodium chloride contains 6.023×10²³ molecules, 1.8 moles of sodium chloride contains how many molecules?
amount of molecules of sodium chloride= (6.023×10²³ molecules × 1.8 moles)÷1 mole
amount of molecules of sodium chloride=1.08414 ×10²⁴ molecules
Finally, the number of molecules of sodium chloride is 1.08414×10²⁴ molecules.
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What mass of reactants are used
during the reaction?
Iron + Sulfur➜ Iron Sulfide
27.50 g
? g
Give your answer to the correct number of
significant figures.
(g) Iron + Sulfur
Answer:
27.50 g
Explanation:
Unless weight was somehow gained/lost during the reaction, the products should weigh as much as the reactants. Since this isn't specified the mass of the reactants should be equal to the mass of the products.
If you keep a gas's temperature constant, how would you increase the volume of the gas?
a. You would change the temperature
b. You would increase the pressure
c. You would decrease the temperature
d. You would decrease the pressure
Answer: d. You would decrease the pressure
Explanation:
If the temperature of a gas is held constant, the pressure and volume vary inversely.
If the gas's temperature remains constant, then increase the volume of the gas with a decrease in the pressure. Therefore, option (D) is correct.
What is Boyle's law?Boyle’s law can be described as at a constant temperature, the pressure exerted by a given mass of gas being inversely proportional to the volume occupied by the gas.
The pressure and volume of a gas at a particular temperature have an inverse relationship.
P ∝ 1/V
or P₁ .V₁ = P₂. V₂ ................ (1)
Where the initial and final pressure of the gas is P₁ and P₂ respectively. The initial and final volume of the gas is V₁ and V₂ respectively at temperature 'T'.
Therefore, if we keep the temperature of the gas constant. them the volume of the gas will increase only if we decrease the pressure of the gas.
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When some water condensed
onto a glass, it released 9.15 Cal
of energy. How many joules of
energy is this?
[?] joules
When we convert 9.15 Calories to joules, the result obtained is 38.28 Joules
How do i convert 9.15 calories to joules?From the question given above, the following data were obtained:
Energy (in Calories) = 9.15 caloriesEnergy (in Joules) =?The conversion scale to convert calories to joules is given below:
1 Calorie = 4.184 Joules
Using the above scale, we can convert 9.15 calories to joules as shown below:
1 Calorie = 4.184 Joules
Therefore,
9.15 Calories = (9.15 Calorie × 4.184 Joules) / 1 Calorie
9.15 Calories = 38.28 Joules
Thus, we can conclude from the above calculation that the energy in joules is 38.28 Joules
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Answer:
38,200J
Explanation:
9.15 x 4.18 x 1000= 38,247 → 38,200J
What is produced during the replacement reaction of ba(no3)2 and na2so4? 2bana 2no3so4 2nano3 baso4 nano3 baso4 bana2 (no3)2so4
2NaNO3(aq) + BaSO4 = Ba(NO3)2(aq) + Na2SO4(aq) (s)
Procedures involved:
The cations or anions may transfer positions in this twofold replacement/displacement reaction, which results in AB + CD AD + CB. In such a reaction, water, an insoluble gas, or an insoluble solid must be one of the byproducts (precipitate). The reaction in question has the following molecular equation:
2NaNO3(aq) + BaSO4 = Ba(NO3)2(aq) + Na2SO4(aq) (s)
Double displacement:
When two atoms or groups of atoms swap positions, a double displacement reaction occurs, creating new compounds. Typically, aqueous solutions are where it happens.
Na2SO4 + BaCl2 BaSO4 + 2NaCl is an example of a double displacement reaction.
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The diagram represents the general equation for photosynthesis.
What does the X represent?
hydrogen
oxygen
glucose
carbon dioxide
Answer:
The diagram represents the general equation for photosynthesis.
What does the X represent?
Explanation:
Carbon dioxide
Please help!
Three sections of the periodic table are labeled A, B, and C in the image below.
Which of the following statements is most likely true for an element present in section A?
It is dull and brittle.
It is malleable and ductile.
It is a liquid at room temperature.
It is a poor conductor of electricity.
Answer:
they are metals so they are:-
-malleable
-ductile
because metallic bonding is the same in all direction throughout the solid
Express in scientific notation. Choose the answer with the proper number of significant figures: 1.24 x 10^6/6.2 x 10^-3
Answer:
1.24×10^6/6.2×10^-3
200
acc to scientific notation: 0.2×10^3 is the answer
Explanation:
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If you know the velocity at which an object is moving, which two things do you know about the object's motion?
O speed and direction
O
distance and speed
time and distance
O direction and time
Answer:
speed and direction are the two things
What is the name of CH3CH2CHMgBr(CH3)?
Answer:
Ethyl magnesium Bromide
How much sodium bicarbonate to raise alkalinity in pool.
Answer:
A rule of thumb is that 1.5 lbs. of baking soda per 10,000 gallons of water will raise alkalinity by about 10 ppm. If your pool's pH is tested below 7.2, add 3-4 pounds of baking soda. If you're new to adding pool chemicals, start by adding only one-half or three-fourths of the recommended amount.
Natural gas (CH4) has a molar mass of 16.0 g/mole. You started out the day with a tank containing 200.0 g of natural gas. At the end of the day, your tank contains 30.0 g of natural gas. How many moles of gas did you use
Considering the definition of molar mass, the moles of gas used are 10.625 moles.
Definition of molar massThe molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.
Amount of moles usedNatural gas has a molar mass of 16.0 g/mole.
You started out the day with a tank containing 200.0 g of natural gas. So, you can apply the following rule of three: If by definition of molar mass 16 grams are contained in 1 mole, 200 grams are contained in how many moles?
[tex]amount of moles at the beginning=\frac{200 gramsx1 mole}{16 grams}[/tex]
amount of moles at the beginning= 12.5 moles
At the end of the day, your tank contains 30.0 g of natural gas. So, you can apply the following rule of three: If by definition of molar mass 16 grams are contained in 1 mole, 30 grams are contained in how many moles?
[tex]amount of moles at the end=\frac{30 gramsx1 mole}{16 grams}[/tex]
amount of moles at the end= 1.875 moles
The number of moles used will be the difference between the number of moles used initially and the contents at the end of the day.
moles used= amount of moles at the beginning - amount of moles at the end
moles used= 12.5 moles - 1.875 moles
moles used= 10.625 moles
Finally, the moles of gas used are 10.625 moles.
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what has the highest volume 1kg lead, 1kg of iron, 1kg of gold, or 1kg of copper
Answer:
1kg gold because when it's mined it needs stronger machines
1kg gold because when it's mined it needs stronger machines.
What is volume?The amount of space occupied by a three-dimensional figure as measured in cubic units.
Gold is called a heavy metal because of its high density, which comes from the fact that each of its atoms is individually very heavy.
Hence, 1kg gold because when it's mined it needs stronger machines.
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A student was given a mixture of iron of iron fillings and sulphur. He was told to heat it and observe the compound.
(a) What is coloured formed.
(b) Write the effect of magnet on it.
(c) Write the action of carbon disulphide on it.
(d) Describe the effect of adding dilute hydrochloric acid to it. ldentify the gas and write its two properties.
The observations are as follows:
black iron sulfide is formed iron sulfide is not magnetic No reaction observed with carbon sulfidehydrogen gas is evolved What is the product of the reaction of iron fillings and sulfur when heated?When a mixture of iron fillings and sulfur are heated, black iron (ii) sulfide is formed.
Unlike iron fillings, black iron (ii) sulfide is not attracted to a magnet.
When carbon sulfide is added to it, no visible reaction is observed.
When dilute hydrochloric acid is added to it, a gas with a rotten-egg smell is evolved.
The gas is hydrogen sulfide which is a reducing agents and acidic in nature.
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Liquid tetrabromoethane has a density of 2.96 g/mL. A barometer is constructed using tetrabromoethane instead of mercury. If the atmospheric pressure is 0.971 atm, what is the height of the tetrabromoethane column in the barometer in cm
16.06 cm is the height of the tetra bromoethane column in the barometer in cm.
What is barometer?A barometer is a scientific instrument used to measure atmospheric pressure, also called barometric pressure.
Explanation:
Pressure of the liquid column=ρgh
ρ= density of the liquid
h= height of the column
g= due to gravity
the
height of the mercury column corresponding to 0.971 atm
= 0.951×76÷1atm = 73.796 cm
[tex]\rho_1h_1g=\rho_2h_2g[/tex]
2.96 g/mL x 73.796 cm =13.6 g/mL [tex]h_2[/tex]
[tex]h_2[/tex]=16.06148235 =16.06 cm
16.06 cm is the height of the tetra bromoethane column in the barometer in cm.
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2Na+S→Na2S
What is the total number of moles of S that react when 4.0 moles of Na were completely consumed?
Answer:
2.0 moles S
Explanation:
To find the number of moles of S, you need to convert the moles Na to moles S via the mole-to-mole ratio. This ratio is represented by the coefficients in the balanced equation. Because you wish to find moles S, you want to put this number in the numerator. Because you want to eliminate the moles Na, this number should be in the denominator.
2 Na + 1 S ---> Na₂S
4.0 moles Na 1 mole S
---------------------- x --------------------- = 2.0 moles S
2 moles Na
not sure on what to do
Answer:
It's the first answer
Explanation:
Aqueous just means that the solution is just dissolved in water
Question 3
Not yet
answered
Points out of
If you dissolve 2.70 g of NaCl in 425 mL of water, what is the molarity of the
solution? (Report your answer to three places past the decimal point. Moodle is
looking for a number only, no units.)
Answer: 0.118M
Explanation:
The formula for molarity is: [tex]M=\frac{mol solute}{L solution}[/tex]
First, we need to find the number of moles of NaCl.
[tex]2.70gNaCl*\frac{1molNaCl}{58.44gNaCl} =0.05molNaCl[/tex]
Next, we must convert millimeters to liters. We can do that by dividing the number of mL by 1000.
[tex]\frac{425mL}{1000} =0.425L[/tex]
Now we have our needed data! All we need to do now is plug in our data to the molarity formula.
[tex]M=\frac{0.05mol}{0.425L} =0.118M[/tex]
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Why do lunar and solar eclipses not happen every month?
An exergonic reaction __________ free energy, and an endergonic reaction __________ free energy.
WILL GIVE BRAINLIEST
The table shows the number of reactants and products present during two separate chemical reaction
Which of the following statements correctly identifies the decomposition reaction and describes a substance involved?
Chemical reaction A, because the reactant is a compound
Chemical reaction B, because the product is a compound
Chemical reaction A, because the reactant is an element
Chemical reaction B, because the product is an element
Answer:
Chemical reaction A, because the reactant is a compound
Explanation:
In a decomposition reaction, a compound is broken down into its components, so the number of products is greater than the number of reactants
Chemical reaction A, because the reactant is a compound is a statements correctly identifies the decomposition reaction and describes a substance involved.
What is chemical reaction?When atoms establish or break chemical bonds, chemical processes take place. Reactants are the substances that begin a chemical reaction, while products are the compounds that are created as a result of the reaction.
Although a chemical reaction is not always a "one-way street," as we'll examine further in the next section, an arrow is drawn between the reactants and products to denote the direction of the reaction.
Our equation must have them in it in order for there to be an equal number of atoms of each element on both sides of the equation.
Therefore, Chemical reaction A, because the reactant is a compound is a statements correctly identifies the decomposition reaction and describes a substance involved.
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A gaseous hydrogen is stored at 500 Bar and 25 oC in a composite storage with an internal volume of 220 liters. Determine the mass of the hydrogen in the tank. Use a compressibility factor Z
The mass of the hydrogen gas in tank, given the data is 6.17 Kg
Data obtained from the questionPressure (P) = 500 Bar = 500 × 0.986923 = 493.4615 atmTemperature (T) = 25 °C = 25 + 273 = 298 K Volume (V) = 220 L Gas constant (R) = 0.0821 atm.L/Kmol Compressibility factor (z) = 1.45Molar mass of hydrogen gas = 2.016 g/molMass of hydrogen gas (m) =? How to determine the mass
PV = znRT
Divid both sides by zRT
n = PV / zRT
but
mole (n) = mass (m) / molar mass (M)
Thus,
m / M = PV / zRT
m = MPV / zRT
m = (2.016 × 493.4615 × 220) / (1.45 × 0.0821 × 298)
m = 6169 g
Divide by 1000 to express in Kg
m = 6169 / 1000
m = 6.17 Kg
Complete question
A gaseous hydrogen stored at 500 Bar and 25°C in a composite storage with an internal volume of 220 liters. Determine the mass of the hydrogen in the tank. Use a compressibility factor Z = 1.45
3.06 kg
6.17 kg.
13.0 kg
5.05 kg
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Rafa then places some zinc in a solution of lead nitrate. A displacement
reaction takes place. Write the word equation for this reaction.
Answer:
Explanation:
A solution of zinc metal and lead nitrate react to form zinc nitrate and lead metal.
Zn(s) + Pb(NO3)2 = Zn(NO3)2 + Pb
HELP FAST PLEASE! What is the limiting reactant if 43.4 g of NH3 react with 30 g of NO? The balanced equation is 4NH3 + 6NO --> 5N2 + 6H2O.
Choices:
A. H2O
B. NH3
C. NO
D. N2
The limiting reactant in the reaction is the NO molecule.
What is limiting reactant?The limiting reactant is the reactant that is present in the least amount in the reaction. The rate of reaction depends on the limiting reactant.
Given the reaction; 4NH3 + 6NO --> 5N2 + 6H2O.
Number of moles of NH3 = 43.4 g/17 g/mol = 2.55 moles
Number of moles of NO = 30 g/30 g/mol = 1 mole
Now if 4 moles of NH3 reacts with 6 moles of NO
2.55 moles of NH3 reacts with 2.55 moles * 6 moles/ 4 moles
= 3.8 moles
Hence, the limiting reactant in this reaction is NO.
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PLEASE HELP FAST! How many grams of NO are formed if 8.3 g of ammonia react with 11.8 g of oxygen? The reaction is 4NH3 + 5O2 --> 4NO + 6H2O.
Options:
A. 8.85 g NO
B. 12.6 g NO
C. 14.6 g NO
D. 9.3 g NO
The mass of NO produced is 9.3 g; option D.
What mass of NO is produced from the reaction?
The mass of nitrogen (ii) oxide, NO, produced from the reaction is determined from the mole ratio of the reaction.
The mole ratio of ammonia to oxygen from the equation of the reaction is 4 : 5.
moles of oxygen = 11.8/32 = 0.368
moles of ammonia = 8.3/17 = 0.488
Oxygen is the limiting reactant.
Mass of NO produced = 0.369 * 4/5 * 30 = 9.4 g NO
In conclusion, approximately 9.3 g of NO is produced.
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Suppose that you add 26.7 g of an unknown molecular compound to 0.250 kg of benzene, which has a K f Kf of 5.12 oC/m. With the added solute, you find that there is a freezing point depression of 3.89 oC compared to pure benzene. What is the molar mass (in g/mol) of the unknown compound
From the calculation, the molar mass of the solution is 141 g/mol.
What is the molar mass?We know that;
ΔT = K m i
K = the freezing constant
m = molality of the solution
i = the Van't Hoft factor
The molality of the solution is obtained from;
m = ΔT/K i
m = 3.89/5.12 * 1
m = 0.76 m
Now;
0.76 = 26.7 /MM/0.250
0.76 = 26.7 /0.250MM
0.76 * 0.250MM = 26.7
MM= 26.7/0.76 * 0.250
MM = 141 g/mol
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How many atoms from the following molecule will be detected in a 13c nmr experiment? we are not asking for unique signals, just total number of atoms
The structure of the compound, there will be ten unique signals in the carbon 13 NMR of the compound.
What are NMR signals?The NMR signals shows the atoms in a compound that are in unique chemical environments. The atoms that are in the same chemical environment will only give one signal.
Based on the structure of the compound, there will be ten unique signals in the carbon 13 NMR of the compound.
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