When salts of ,Mg2+ Na+ , and Cs+ are placed in water, the ions are hydrated. Which of these three cations is most strongly hydrated? Which one is least strongly hydrated?

Why is water good at dissolving salts, and why do salts make water more conductive? Draw a model to demonstrate your answer.

A water sample contains 300 mg of NaCl in 500 mL of solution. Calculate the parts per million of sodium.

Explain how to make large molecules and break down large molecules (& name for the reactions-dehydration vs hydrolysis).

Calculate the concentration (in micromolar) of dissolved oxygen in water that is in equilibrium with a gas that has an oxygen partial pressure of 17.1 mmg. You can assume a Henry's Law Constant of 0.653 mmHg micromolar* (data based on Table 7.1)

Are solutions homogeneous or heterogeneous mixtures? Explain.

Which letter for sodium iodine

The heat of solution of potassium acetate (KC2H3O2) in water is -15.30 kJ/mol.If 15.90 g of KC2H3O2(s) is dissolved in 545.0 mL of water that is initially at 23.60 °C, what will be the final temperature (in degrees Celcius) of the resulting aqueous solution?(Assume no heat exchange with the surroundings.)

A solution is prepared by dissolving 9.00 g of glucose in 75.0 ml of water. The solution has a boiling point of 100.34 degrees C. Calculate the molar mass of glucose.

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