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3 years ago

128.3 grams of methane (CH4) is equal to how many moles of methane

2 answers:

6 0

About 8.0 moles of methane.Number of moles = MassMolar mass.

And thus we get the quotient:

128.3⋅g16.04⋅g⋅mol−1=8.0⋅moles of methane.

Note that the expression is dimensionally consistent, we wanted an answer in moles, and the quotients gives, 1mol−1=11mol=mol as required.

faltersainse [42]3 years ago

4 0

Answer : The moles of methane are, 8.01875 moles

Explanation : Given,

Mass of $CH_4$ = 128.3 g

Molar mass of $CH_4$ = 16 g/mole

Now we have to calculate the moles of methane.

Formula used :

$\text{Moles of }CH_4=\frac{\text{Mass of }CH_4}{\text{Molar mass of }CH_4}$

Now put all the given values in this formula, we get the moles of methane.

$\text{Moles of }CH_4=\frac{128.3g}{16g/mole}=8.01875moles$

Therefore, the moles of methane are, 8.01875 moles

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Density = $\frac{mass}{volume}$

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As reaction equation for the given reaction is as follows.

$NaOH + CH_{3}COOH \rightarrow CH_{3}COONa + H_{2}O$

So, moles of NaOH = moles of acetic acid

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x = 20 L

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4 years ago

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How many grams of CO 2 are present in a container with a volume of 5.61 L if the gas exhibits a pressure of 5.66 atm at a temper

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