Which of the following statements best describes the state of equilibrium of a reaction?

Among the following weak acids, which one is the strongest?

Sodium carbonate gives an acidic solution when dissolved in water.

Rubbing alcohol is 70.0% isopropyl alcohol by volume. How many mL of isopropyl alcohol are in a 1 pint (473 mL) container?

When 200 mL of water are added to 100 mL of 12% CaCl2 solution, the final concentration of CaCl2 is?

A balloon occupies a volume of 1.25 L at sea level.  What volume would the balloon occupy at the Mount Everest (altitude 29,000 ft) where the air pressure is only 253 mmHg. Assume no change in Temperature.

What is the (w/w)% concentration of a solution prepared by dissolving 50.0 g NaCl in 150.0 g of water?

The boiling point of water at sea-level is 100 °C. At higher altitudes, the boiling point of water will be

An ammonium chloride solution should have an acidic pH.

What is the molarity of a solution that contains 8.5 g of NH3 in 5.0 x 102 mL of solution?