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Marta_Voda [28]
3 years ago
14

How many atoms are in .47 moles of argon

Chemistry
1 answer:
lesantik [10]3 years ago
3 0

Answer:

\large \boxed {2.8 \times 10^{23}\text{ atoms Ar}}

Explanation:

\text{Atoms of Ar} = \text{0.47 mol Ar} \times \dfrac{ 6.022  \times 10^{23}\text{ atoms Ar}}{\text{1 mol Ar}}\\\\= \large \boxed {\mathbf{2.8 \times 10^{23}}\textbf{ atoms Ar}}

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Answer:

q = -6464.9 kJ

Explanation:

We are given that the heat of combustion is  ∆H° = −394 kJ per mol of carbon.Therefore what we need to do is calculate how many moles of C are in the lump of coal by finding its mass since the density is given.

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3 years ago
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To know which option is correct, we shall determine the name of the compound.

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2,3–dimethylpentane

None of the options are correct.

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