3 years ago

What is the mass in grams of 3x10 atoms of helium

Chemistry

1 answer:

Zepler [3.9K]3 years ago

3 0

Answer:

here

Explanation:

What is the total mass of $$3.01 x 10^23$$ atoms of helium gas?

✓ Well $$"Avogadro's number"$$ of helium atoms has a mass of $$4.0*g$$. Explanation: And $$"Avogadro's number"$$

You might be interested in

What is the volume of 2.0 mol CO2 at STP?

Andrew [12]

Answer:

44.8 litres is the answer to the question

6 0

2 years ago

PLEASE HELP!!!!!!!!!!! WILL AWARD 50 POINTS!!!!!!!!!111

Vinil7 [7]

I am pretty sure the answer is . But I might be wrong.

3 0

3 years ago

Read 2 more answers

Which of the following solvents would be the best to separate a mixture containing benzoic acid, 2,4-dinitrobenzoic acid, and 2,

KatRina [158]

Answer:

The correct option is Methylene chloride

Explanation:

Methylene chloride or Dichloromethane has an organic formula of CH2CL2. it is commonly used as solvent, it is very volatile and dissolves many organic compounds including a mixture containing benzoic acid, 2,4-dinitrobenzoic acid, and 2,4,6-trinitrobenzoic acid. It is colorless, has a chloroform like odor and Miscible in ethyl acetate, alcohol, hexanes, benzene, CCl4, diethyl ether, CHCl3.

4 0

3 years ago

what is the balanced equation that represents the reaction hydrogens and nitrogen to make ammonia (NH3)

KengaRu [80]

Answer: N2 + 3H2 —> 2NH3

Explanation:

4 0

3 years ago

How much work (in J) is involved in a chemical reaction if the volume decreases from 5.00 to 1.48 L against a constant pressure

Dahasolnce [82]

Given:
ΔV = 5 - 1.48 L = 3.52 L = 0.00352 m³, th chane in volume
p = 0.818 atm = 0.819*101325 Pa = 82985.2 Pa

By definition, the work done is
$W = \int pdV = (82985.2 \, \frac{N}{m^{2}} )*(0.00352 \, m^{3}) = 292.1 \, J$

Answer: 292.1 J

5 0

3 years ago