What is the mass percent of sulfur in the $\left[\operatorname{Ag}(\mathrm{SCN})_2{ }^{-}\right]$ complex ion?

Write ionization equations and base ionization constant expressions for the following bases. carbonate ion $(CO_3 ^{2-})$

Use the pH scale to answer the questions.

What is the hydrogen ion concentration of a solution with $\mathrm{pH}\ 8.5$?

Write a balanced equation for each of the following reactions: Elemental sulfur reacts with sulfite ion to form thiosulfate.

Write the symbol for the ion formed when each of the following elements loses its valence electrons.

Potassium

Write the chemical equation and the Kb expression for the reaction of each of the following bases with water: formate ion ,

$$CHO_2^-$$

Write the symbol for the ion formed when each of the following elements loses its valence electrons.

aluminium

For each of the following simple ions, indicate the number of protons and electrons the ion contains.

j. $\text{Rb}^{+}$

Calculate the formal charge on each nitrogen in the following Lewis formula (azide ion) and the net charge on the species.

Write the Lewis structure for each molecule or ion. a. $H_3COH$ b. $OH^-$ c. $BrO^-$ d. $O_2 ^{2-}$

Write the electron dot formula and draw the structural formula for the following polyatomic ion.

HPO$_{3}$ $^{2-}$

How does the sodium ion concentration of body fluids affect the net movement of water between the compartments?

Calculate the hydrogen ion concentration in mol/L for the following solution: a solution whose $\mathrm{pH}$ is $16.00$

Determine the formal charges on each atom in the carbonate ion $\left(\mathrm{CO}_3^{2-}\right)$.