Answers
Answer: 32g of sulfur, S, is 1 molar mass
1 molar mass contains X particles (in this case, atoms)
32g of oxygen, O2, is 1 molar mass
1 molar mass contains X particles (in this case, molecules)
There are 2 oxygen atoms in each molecule of O2 gas
Therefore, there are 2X atoms of oxygen in 32g of oxygen gas.
Explanation: bcs yes
The value of x in the compound SOₓ is 3 . The compound is SO₃
The relative atomic mass of sulphur is given as 32
The relative atomic mass of oxygen is given as 16
The compound shown contains 80 g of sulphur and 120 g of oxygen.
The value of x can be calculated as follows:
molecular mass of S0ₓ = 32 + 16x
if 32 g of sulphur is in 32 + 16x of the of S0ₓ
80 g of sulphur is in 200 g of the compound
cross multiply
200(32) = 80(32 + 16x)
6400 = 2560 + 1280x
6400 - 2560 = 1280x
3840 = 1280x
x = 3840 / 1280
x = 3
Therefore, the compound is SO₃
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Related Questions
Due tomorrow: What element is in group 18, period 1
Answers
Answer: helium
Explanation: it’s in the very last column (group) and the first row (period)
If 79.5 mol of an ideal gas is at 8.91 atm at 47.20 °C, what is the volume of the gas?
Answers
Answer:
235L
Explanation:
PV =nRT
V = nRT/P
47.20 °C is 320.35K
V = (79.5 mol)(0.0821 atm•L/mol•K)(320.35K)/8.91atm
V = 234.6698577L
Round to 3 sig figs: 235L
Please help thank you!!!!
Answers
Answer:
0.4 mol
Explanation:
We will use the formula:
n = cv
n is the number of moles, c is the concentration/molarity, v is the volume in LITRES.
Step 1: convert the volume to Litres. 500 mL is 0.5 Litres
Step 2: apply the formula
n= (0.8)(0.5)
n = 0.4 mol
Compound X has a solubility of. 30g in 100g of water at 20c what is the minimum amount of water, in grams, that is needed to dissolve 90g of compound X
Answers
Consider this reaction involving an unknown element X. F2+2XBr⟶Br2+2XF When 1.300 g of XBr reacts, 0.7241 g of Br2 is produced. Calculate the molar mass of X, and then identify its element symbol.
Answers
The molar mass of X would be 63.55 g/mol and the chemical symbol of X would be Cu (copper).
From the equation of the reaction: F2+2XBr⟶Br2+2XF
The mole ratio of XBr to Br2 is 2:1
Mole of Br2 = mass/molar mass
= 0.7241/159.808
= 0.004531 mole
Mole of XBr = 2 x mole of Br2
= 2 x 0.004531
= 0.009062 mole
Molar mass of XBr = mass/mole
= 1.300/0.009062
= 143.456 g/mol
Since the molar mass of Br is 79.904, the molar of X would be:
143.456 - 79.904
= 63.55 g/mol
Hence, X would be Cu.
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Digital communication plays a very important role in modern living. Effective transmission of data, voices and images in a digital format requires a suitable material. What is the material?
Answers
Answer:
The answer is fibre optic.
Explanation:
Fibre optic is used for Effective transmission of data, voices and images in a digital format.
Which are examples of a phase change? (Select all that apply.)
evaporating water
cutting wood
frying eggs
melting butter
Answers
Answer:
melting butter and frying eggs
Explanation:
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What is one common boating hazard in Sydney Australia
Answers
Answer:
seals
Explanation:
saturated solutions changes into unsaturated by heating why
Answers
Hope this helps!
how do the joints help to facilitate movement
Answers
Answer:
Joints are movable connections between two bones. ... It provides a smooth surface to stop the bones in the joint from rubbing against each other too much. The cartilage passes the pressure in the joint on to the bone underneath it. This is especially important in joints that bear heavier loads, such as hip or knee joints
Explanation:
Which of the following best describe arrangement of particles in a gas?
The particles are packed closely together and cannot move freely
The particles are spread apart and can move freely.
The particles are packed closely together and can move freely
Answers
Answer:
last one
Explanation:
makes the most sense
How much has our global temperature risen in the last 100 years? A. 5.0°F B. 10°F C. 0.5°F D. 1.0°F
Answers
Answer:
The answer is D.
Explanation:
You work in an analytical testing lab and have been asked by your supervisor to purchase new pH meters to replace your old supply. You have identified four potential suppliers and now need to evaluate the performance of each pH meter.
You obtained a solution with a known pH of 5.5. You performed 10 replicate
measurements of the pH of that known solution using each of the four different pH meters and obtained the data shown below.
All other factors being equal (cost, ease of use, etc), which brand would you suggest the lab purchase? Explain your reasoning.
Answers
The pH meter brand B is the most accurate pH meter as compared to other pH meter.
I will suggest the pH meter brand B the lab to purchase because the readings of this pH is more accurate as compared to other three pH meters. The pH meter brand B provides data which is closer to the known pH of the solution.
While on the other hand, pH meter brand A, C and D gives less accurate data in which more error is present in the data so we can conclude that the pH meter brand B is the most accurate pH meter as compared to other pH meter.
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A gas phase mixture of H2 and N2 has a total pressure of 784 torr with an H2 partial pressure of 124 torr. What mass of N2 gas is present in 2.00 L of the mixture at 298 K
Answers
The mass of N₂ in the mixture having a total pressure of 784 torr with an H₂ partial pressure of 124 torr is 1.988 g
We'll begin by calculating the partial pressure of N₂. This can be obtained as follow:
Total pressure = 784 torr
Partial pressure of H₂ = 124 torr
Partial pressure of N₂ =?Total pressure = Partial pressure of H₂ + Partial pressure of N₂
784 = 124 + Partial pressure of N₂
Collect like terms
Partial pressure of N₂ = 784 – 124
Partial pressure of N₂ = 660 TorrNext, we shall determine the number of mole of N₂ in the mixture.Pressure of N₂ (P) = 660 Torr
Volume (V) = 2 L
Temperature (T) = 298 K
Gas constant (R) = 62.364 L.Torr/Kmol
Number of mole of N₂ (n) =?PV = nRT
660 × 2 = n × 62.364 × 298
1320 = n × 18584.472
Divide both side by 18584.472
n = 1320 / 18584.472
n = 0.071 moleFinally, we shall determine the mass of N₂ in the mixture.Mole of N₂ = 0.071 mole
Molar mass of N₂ = 2 × 14 = 28 g/mol
Mass of N₂ =?Mass = mole × molar mass
Mass of N₂ = 0.071 × 28
Mass of N₂ = 1.988 gTherefore, the mass of N₂ in the mixture having a total pressure of 784 torr with an H₂ partial pressure of 124 torr is 1.988 g
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A gaseous mixture contains 0.545 bar H, (8), 0.517 bar N, (8), and 0.107 bar Ar(g). Calculate the mole fraction, X, of each of
these gases.
Answers
In this case, it can be see that we have a gas mixture wherein hydrogen has a partial pressure of 0.545 bar, nitrogen 0.517 bar and argon 0.107 bar and we are asked to calculate the mole fraction of each gas.
According to the given information, it turns out possible for us to use the Dalton's law in order to calculate the mole fraction of each gas in the mixture. However, we first must calculate the total pressure of the mixture by adding them all together:
[tex]P_T=0.545bar+0.517bar+0.107bar=1.169bar[/tex]
After so, we proceed to the mole fractions by dividing the pressure of each by the total one:
[tex]x_{H_2}=\frac{0.545bar}{1.169bar} =0.466\\\\x_{N_2}=\frac{0.517bar}{1.169bar} =0.442\\\\x_{Ar}=\frac{0.107bar}{1.169bar} =0.092[/tex]
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How many moles of ions are produced from dissociation of 1 mol of NH4Br
Answers
Answer:
2 mol
Explanation:
NH4Br = NH4+ + Br-
1 mole of NH4+ and 1 mole of Br.
NaOH + H₂SO4 -> Na2SO4 +H20 balance the equation
Answers
Answer:
2NaOH + H₂SO4 -> Na2SO4 + 2H2O
Explanation:
NaOH + H₂SO4 -> Na2SO4 +H2O
2NaOH + H₂SO4 -> Na2SO4 + 2H2O
Answer:
2NaOH + H₂SO4 -> Na2SO4 + 2H2O
Explanation:
2*H+2H=2*2H
2*Na=Na2
2*O+O4=O4+2*O
s=s
The Law of Multiple Proportions states that if two elements can combine to form two different compounds, the masses of the one element that can combine with a fixed amount of the other element will be in a ratio of small whole numbers.
True False
Answers
Answer:
law of multiple proportionsA law stating that if two elements form a compound, then the ratio of the mass of the second element and the mass of the first element will be small whole number ratios.
Explanation:
this is not chemistry this is science
Answers
Answer: 2 meters
Explanation: 200 cm of flower bed
There are 100 cm in one meter.
200/100=2
Answer:
200 centimeters or 2 meters
Explanation:
It should be the same simply for aesthetic pleasure
What is accumulation??
Answers
Answer:
Accumulation is something that's building up. For example, "My trash accumulates every Saturday."
What are the first 20 elements and their abbrevations
Answers
Answer:
1. Hydrogen (H)
2. Helium (He)
3. Lithium (Li)
4. Beryllium (Be)
5. Boron (B)
6. Carbon (C)
7. Nitrogen (N)
8. Oxygen (O)
9. Fluorine (F)
10. Neon (Ne)
11. Sodium (Na)
12. Magnesium (Mg)
13. Aluminum (Al)
14. Silicon (Si)
15. Phosphorus (P)
16. Sulfur (S)
17. Chlorine (Cl)
18. Argon (Ar)
19. Potassium (K)
20. Calcium (Ca)
Which is NOT a correct assumption related to the Kinetic Theory?
A) collisions are perfectly elastic
B) a gas is composed of particles relatively far apart from one another
C) particles in a gas move in random motion
D) intermolecular forces influence the properties a gas
E) None of all
F) no attractive or repulsive forces exist between the particles
Answers
Answer:
D
Explanation:
i took the test and got it right :)
A hot air balloon is filled with 1.19 x 106 L of an ideal gas on a cool morning (11 °C). The air is heated to 113 °C. What is the
volume of the air in the balloon after it is heated? Assume that none of the gas escapes from the balloon.
Answers
Answer:
using the Charles law
v1/t1= v2/t2
Explanation:
1.19* 10^6/11+273=v2/113+273
1.19*10^6/284=v2/386
v2= 1.19*10^6/284/386
v2= 10.89L
Which of the following best describes subduction?
a more dense plate going beneath a less dense plate
one plate colliding with another
one plate destroying another
one plate dividing another
Answers
Answer:
A more dense plate going underneath a less dense plate.
10. The molar mass of an unknown gas was measured by an effusion experiment. It was found that it took 63 s for the gas to effuse, whereas nitrogen gas (N2) required 48 s. The molar mass of the unknown gas is closest to- A) 24 g/mol B) 37 g/mol C) 16 g/mol D) 32 g/mol E) 48 g/mol
Answers
Answer:
chu papi
Explanation:
How many atoms of each element are in the following chemical reaction
3 H3PO4 + 3 KOH
Answers
Answer: K3PO4+3H2O.
Explanation:
H- 12
P- 3
O- 15
K- 3
(You need to multiply the subscript by the number in front of each compound, then add the number of each element in each of the compounds. Lmk is you need a better explanation)
4. Find the value of Y in AU. HINT: Convert the km to AU using: 1AU = 150 MILLION kilometers
The diagram below shows the position of the sun and two galaxies, G1 and G2. The distance between the two galaxies is represented by Y.
600 billion km
SUN
G1
G2
400 billion km
OVS
What is the value of Yin AU? (3 points)
Answers
The value of Y in AU for the distance between the sun and the two galaxies is 1,333.3 AU.
The given parameters;
position of the sun, G1 = 600 billion kmposition of OVS, G2 = 400 billion kmThe distance between the sun and the two galaxies is calculated as follows;
Y = 600 billion km - 400 billion km
Y = 200 billion km
150 million km = 1 AU
200 billion km = ?
[tex]\frac{1 \ AU}{150 \times 10^6 \ km} \times 200 \times 10^9 \ km= 1,333.3 \ AU[/tex]
Thus, the value of Y in AU for the distance between the sun and the two galaxies is 1,333.3 AU.
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Please please help please help me please please help me
Answers
Answer: the left group is the alkali metals while in the right side its the halogens... up to you to pick. either A or D
Explanation:
During a class presentation, your classmate explains that plants perform photosynthesis and animals perform cellular respiration. In your own words, describe what these processes are and explain why your classmate’s statement is correct or incorrect. will give brain
Answers
Answer:
During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. ... This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.
at room temp, water is a liquid, but carbon dioxide is a gas. both compounds are molecules made of three atoms. what difference at the molecular level helps explain why water is a liquid and carbon dioxide is a gas at the same temp?
Answers
Explanation:
Water has relatively strong hydrogen bonds holding the molecules together but CO² has only dispersion forces acting as intermolecular forces. The weaker intermolecular forces explains why CO² is a gas whereas H²O is a liquid at room temperature.
Answer: Water has relatively strong hydrogen bonds holding the molecules together but CO2 has only dispersion forces acting as intermolecular forces. The weaker intermolecular forces explains why CO2 is a gas whereas H2O is a liquid at room temperature.
Explanation: I hope it helps you!
