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guajiro [1.7K]
3 years ago
7

How many moles are in 120.g of ar?

Chemistry
1 answer:
Elenna [48]3 years ago
4 0

Answer:

3 moles of Argon

Explanation:

The molar mass for argon is 39.948 g/mol

\frac{120g}{39.948g/mol} = 3.004molesAr

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Convert 3.01 x 10^24 molecules of ammonium sulfate to mass
Dmitry [639]

Mass  of ammonium sulfate = 660.7 g

<h3>Further explanation</h3>

Given

3.01 x 10²⁴ molecules of ammonium sulfate

Required

mass

Solution

The mole is the number of particles(molecules, atoms, ions) contained in a substance  

1 mol = 6.02.10²³ particles

Can be formulated

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N = number of particles

n = mol

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mol ammonium sulfate (NH₄)₂SO₄ :

n = N : No

n = 3.01 x 10²⁴ : 6.02 x 10²³

n = 5

mass ammonium sulfate :

= mol x MW

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5 0
3 years ago
1. Is this equation balanced? Explain your answer. Na + Cl2 → NaCl ?
Delvig [45]

It is not balanced since there are 2 Cl molecules on the left side, and only 1 on the right side. In order to balance this, you would need to make sure there are the same amount of all the molecules on both sides...

4Na + 2Cl2 = 4NaCl


Hope this helps :)

3 0
3 years ago
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