1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ladessa [460]
3 years ago
6

What is the mass, in grams, of 9.21×1024 molecules of methanol

Chemistry
1 answer:
Nina [5.8K]3 years ago
7 0

Answer: 490.02g

Explanation:

9.21x10^2^4 molecules of methanol

9.21x10^2^4molecules(\frac{1mol}{6.022x10^2^3molecules} )(\frac{32.04g}{1mol} )=490.02g

You might be interested in
Which of these is an example of a physical change?
Goryan [66]
Is it a multiple choice?
4 0
3 years ago
Read 2 more answers
How many liters of water can be made from 55 grams of oxygen gas and an excess of hydrogen at a pressure of 12.4 atm and a tempe
polet [3.4K]
First, we need the no.of moles of O2 = mass/molar mass of O2
                                                             = 55 g / 32 g/mol
                                                             = 1.72 mol
from the balanced equation of the reaction:
2H2 (g) + O2(g) → 2H2O(g)
we can see that the molar ratio between O2: H2O = 1: 2 
So we can get the no.of moles of H2O = 2 * moles of O2
                                                                  = 2 * 1.72 mol
                                                                  = 3.44 mol
So by substitution by this value in ideal gas formula:
PV = nRT

when P = 12.4 atm  & n H2O = 3.44 mol & R= 0.0821 & T = 85 + 273=358K

12.4 atm *V = 3.44 * 0.0821 * 358 = 8.15 L
 ∴ V ≈ 8.2 L 
4 0
3 years ago
What volume (L) will 3.56 mol NH3 occupy at STP. (1 point)
mart [117]

Answer:

B

Explanation:

I hope it helps you good luck

7 0
3 years ago
Why doesn't glue stick to the inside of the bottle? (Not sure if this is chemistry or not lol)
Leni [432]

Answer:

When white glue is in the bottle, there's not enough air inside the bottle to cause the water to evaporate to make the glue sticky. Basically, the bottle holds the glue from the air and keeps the glue from going everywhere.

8 0
3 years ago
What do greenhouse gases do in our atmosphere?
Vitek1552 [10]

Explanation:

Greenhouse gases are gases in Earth's atmosphere that trap heat. They let sunlight pass through the atmosphere, but they prevent the heat that the sunlight brings from leaving the atmosphere.

3 0
3 years ago
Other questions:
  • Radiation, Chemical agents and Viruses.
    15·2 answers
  • A sample of a substance was determined and contained 1.0g of mg and 1.75g of o. what is the empirical formula? (10 pts)
    8·1 answer
  • Solid cesium iodide has the same kind of crystal structure as CsCl which is pictured below: If the edge length of the unit cell
    12·1 answer
  • What is determined by calculating the slope of the position versus time graph distance
    13·2 answers
  • Can anyone give an image of your own science room
    8·1 answer
  • How many molecules are contained in 5.7 gms of CaCO3​
    9·1 answer
  • Look at this image what type of galaxy is shown? A. barred B. elliptical C. irregular or D. spiral.
    15·2 answers
  • How much heat does a 100. g sample of copper absorb when its temperature increases by 30.0°C? The specific heat of copper is 0.3
    11·1 answer
  • What hydrogen atom transition has the most energy photon.
    15·1 answer
  • What change would shift the equilibrium system to the left?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!