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Olenka [21]
3 years ago
12

How many miles are in 68 grams of copper 2 hydroxide, Cu (OH)2

Chemistry
1 answer:
BabaBlast [244]3 years ago
8 0
Molar mass  Cu(OH)₂ =  <span>97.561 g/mol

1 mol --------- 97.561 g
? mol ---------- 68 g

moles = 68 * 1 / 97.561

moles = 68 / 97.561

= 0.6969 moles 

hope this helps!</span>
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AVprozaik [17]

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Explanation:

According to Dalton's law, the total pressure is the sum of individual pressures.

p_{total}=p_{N_2}+p_{O_2}+p_{He}.

Given : p_{total} =total pressure of gases = 6.50 atm

p_{N_2} = partial pressure of Nitrogen = 1.23 atm

p_{O_2} = partial pressure of oxygen = 2.3 atm

p_{He} = partial pressure of Helium = ?

putting in the values we get:

6.50atm=1.23atm+2.3atm+p_{He}  

p_{He}=2.97atm

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Answer:

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Explanation:

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Inessa05 [86]
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Aloiza [94]

Answer:

C. The conditions in which a substance exists in a certain phase.

Explanation:

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