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tatuchka [14]
3 years ago
14

How many moles are in 1.50 grams of ethanol, CH3CH2OH?

Chemistry
2 answers:
LekaFEV [45]3 years ago
4 0
CH3CH2OH = 46.068 (molar mass)
1.50g(1 mole / 46.0680) =
0.03256 moles
Galina-37 [17]3 years ago
4 0

<u>Answer:</u> The number of moles of ethanol for given amount is 0.0326 moles.

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

We are given:

Given mass of ethanol = 1.50 g

Molar mass of ethanol = 46.07 g/mol

Putting values in above equation, we get:

\text{Moles of ethanol}=\frac{1.50g}{46.07g/mol}=0.0326mol

Hence, the number of moles of ethanol for given amount is 0.0326 moles.

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a 360mg sample of sugar (molar mass of 180 g/mol) is dissolved in enough water to produce 200mL of solution. after the sugar is
Pie
360 mg / 1000    => 0.36 g

molar mass => 180 /mol

number of moles:

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0.36 / 180 => 0.002 moles

Volume solution = 200 mL / 1000 => 0.2 L

M = n / V

M = 0.002 / 0.2

M = 0.01 mol/L

hope this helps!
5 0
3 years ago
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Vlad1618 [11]

Answer:

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