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Aloiza [94]
3 years ago
8

1. The mass of 6.45 x 1022 atoms C​

Chemistry
1 answer:
Fed [463]3 years ago
7 0

Answer:

\large \boxed{\text{1.29 g}}

Explanation:

We must convert atoms of C to moles of C and then to grams of C.

1. Convert atoms to moles

\text{Moles of C} = 6.45 \times10^{22}\text{ atoms C} \times \dfrac{\text{1 mol C}}{6.022 \times\ 10^{23} \text{ atoms C}} = \text{0.1071 mol C}

2. Convert moles to grams

\text{Mass of C} = \text{0.1071 mol C} \times \dfrac{\text{12.01 g C}}{\text{1 mol C}} = \text{1.29 g C}\\\text{The mass of C is $\large \boxed{\textbf{1.29 g}}$}

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<h3>What is the amount of heat given off by 1.0 g of steam?</h3>

The amount of heat given off by steam is determined using the formula below:

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