A solution was prepared by dissolving $\text{100 mg}$ of protein $X$ in $\text{100 ml}$ of water. Molecular weight of protein $X$ is $\text{15,000 Da};$ Avogadro’s number = $6.022\times 10^{23}$.

Calculate the molarity$(\mu M)$ of the resulting solution.

1. $66.6$
2. $6.6$
3. $0.67$
4. $0.067$

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