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3 years ago

What is the mass of three moles of chlorine?

Chemistry

2 answers:

Elina [12.6K]3 years ago

4 0

Answer:

The answer to your question is

a) 212.7 g

b) 110 g

Explanation:

a) Mass of three moles of Chlorine

Atomic weight of Chlorine = 35.45 g but chlorine is a diatomic molecule then the atomic weight = 2(35.45) g = 70.9 g

70.9 g of Cl₂ --------------- 1 mol

x --------------- 3 moles

x = 3(70.9)/1

x = 212.7 g

b) mass of one mole of K₂S

Molecular mass = (39 x 2) + (32 x 1)

= 78 + 32

= 110 g

110 g of K₂S ---------------- 1 mol

Genrish500 [490]3 years ago

4 0

The first one I got this

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3 0

3 years ago

2 points

erica [24]

9 grams of hydrogen gas (H2) will SC Johnson need to react in order to make 1 bottle of Windex.

Explanation:

Balance equation for the formation of ammonia from H2 gas.

N2 + 3H2 ⇒ 2 $NH_{3}$

Given

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number of moles = $\frac{51}{17.01}$

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From the equation it can be found that:

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x = 4.5 moles of hydrogen will be required.

to convert moles into gram formula used:

mass = atomic mass x number of moles (atomic mass of H2 is 2grams/mole)

= 2 x 4.5

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3 years ago

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