Question

A particular saturated solution of $\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}$ has $\left[\mathrm{Ca}^{2+}\right]=\left[\mathrm{PO}_{4}^{3-}\right]=2.9 \times 10^{-7} \mathrm{M}$ (a) What is the value of $K_{\mathrm{sp}}$ for $\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}$ ? (b) What is $\left[\mathrm{Ca}^{2+}\right]$ in a saturated solution of $\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}$ that has $\left[\mathrm{PO}_{4}^{3-}\right]=0.010 \mathrm{M} ?$ (c) What is $\left[\mathrm{PO}_{4}{ }^{3-}\right]$ in a saturated solution that has $\left[\mathrm{Ca}^{2+}\right]=0.010 \mathrm{M} ?$

          A particular saturated solution of $\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}$ has $\left[\mathrm{Ca}^{2+}\right]=\left[\mathrm{PO}_{4}^{3-}\right]=2.9 \times 10^{-7} \mathrm{M}$
(a) What is the value of $K_{\mathrm{sp}}$ for $\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}$ ?
(b) What is $\left[\mathrm{Ca}^{2+}\right]$ in a saturated solution of $\mathrm{Ca}_{3}\left(\mathrm{PO}_{4}\right)_{2}$ that has $\left[\mathrm{PO}_{4}^{3-}\right]=0.010 \mathrm{M} ?$
(c) What is $\left[\mathrm{PO}_{4}{ }^{3-}\right]$ in a saturated solution that has $\left[\mathrm{Ca}^{2+}\right]=0.010 \mathrm{M} ?$

Added by Aimee F.

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