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kvv77 [185]
3 years ago
7

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

Chemistry
2 answers:
Neko [114]3 years ago
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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Answer:

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Inert elements in chemistry simply refers to elements that are chemically inactive and are not expected to form any compounds. this is the general belief for the group 8 elements as they all have complete duplet/octet configurations (and ideally, they ought to be very stable with no tendency to form compounds by participating in the loss and gain of electrons). However the discovery of compounds like xenon tetrafluoride (XeF4) proved this to be wrong.

Again, the reason the term - inert gses was droppedis beacause this term is not strictly accurate because several of them do take part in chemical reactions.

After dropping the term - Inert gases, they are now referred to as noble gases.

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The final concentration of the diluted standard is 0.2 mg/dL.

<h3 /><h3>What is concentration of glucose standard after 1/5 solution?</h3>

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