本题目来源于试卷: Particulate Nature of Matter B.3 Ideal Gas Model，类别为 IB物理学
[单选题]
A quantity of 2000 kg Carkohen-f, 9 q-trfx7dv ;.ad6w-o jam,bon Dioxide ($CO_2$) is maintained in a container tank. The molar mass of Carbon Dioxide ($CO_2$) is $44\,g\,mol^−1$. Determine the correct estimate of the number of Carbon Dioxide ($CO_2$) molecules in the container tank.
A. $10^{22}$
B. $10^{25}$
C. $10^{28}$
D. $10^{31}$
参考答案: C
本题详细解析:
Explanation: $N=N_A\times\frac{m}{M}$ $N=(6.02\times10^{23})(\frac{2000\times10^3}{44})≈300\times1026≈10^{28}$
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