NoneOpen Ended
Score: $155 / 450$
Question Value: 25
What is the mass of $8.913 \times 10^{22}$ atoms of krypton gas, $\mathrm{Kr}$ ? The molar mass of krypton is $83.798 \frac{\mathrm{g}}{\mathrm{mol}}$.
$12.40 \mathrm{~g}$
$4.498 \times 10^{48} \mathrm{~g}$
$7.469 \times 10^{24} \mathrm{~g}$
$0.1480 \mathrm{~g}$
✨ Quizard's Answer
Asked by 1 other people
Explanation:
To find the mass of $8.913 \times 10^{22}$ atoms of krypton gas, we can use the molar mass of krypton. The molar mass of krypton is $83.798 \frac{\mathrm{g}}{\mathrm{mol}}$.
To calculate the mass, we can use the following formula:
Mass = Number of atoms $\times$ Molar mass
Plugging in the values, we get:
Mass = $8.913 \times 10^{22}$ atoms $\times$ $83.798 \frac{\mathrm{g}}{\mathrm{mol}}$
Calculating this, we find that the mass is approximately $7.469 \times 10^{24} \mathrm{~g}$.
Therefore, the correct answer is $7.469 \times 10^{24} \mathrm{~g}$.
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