Questions from General Chemistry

Q: For each of the following solutions, the mass of the solute

For each of the following solutions, the mass of the solute is given, followed by the total volume of solution prepared. Calculate the molarity. a. 5.0 g of BaCl2; 2.5 L b. 3.5 g of KBr; 75 mL c. 2...

Q: You are given 1.00 gram of each of five substances

You are given 1.00 gram of each of five substances. In which of the substances will there be the greatest number of potassium ions when dissolved in water? a. potassium chloride b. potassium chlorat...

Q: Magnesium fluoride dissolves in water to the extent of 8.0

Magnesium fluoride dissolves in water to the extent of 8.0 * 10-2 g/L at 25 °C. Calculate the solubility of MgF2(s) in moles per liter, and calculate Ksp for MgF2 at 25 °C.

Q: When 200.0 mL of 0.10 M Zn(

When 200.0 mL of 0.10 M Zn(NO3)2 is mixed with 100.0 mL of 0.10 M KOH, a precipitate forms. a. How many moles of precipitate can form in this reaction? b. Calculate the concentration of Zn2+ ions in...

Q: Lead(II) chloride, PbCl2(s), dissolves in

Lead(II) chloride, PbCl2(s), dissolves in water to the extent of approximately 3.6 * 10-2 M at 20 °C. Calculate Ksp for PbCl2(s), and calculate its solubility in grams per liter.

Q: How many moles and how many grams of the indicated solute does

How many moles and how many grams of the indicated solute does each of the following solutions contain? a. 4.25 L of 0.105 M KCl solution b. 15.1 mL of 0.225 M NaNO3 solution c. 25 mL of 3.0 M HCl...

Q: Suppose a reaction has the equilibrium constant K = 4.5

Suppose a reaction has the equilibrium constant K = 4.5 * 10-6 at a particular temperature. If an experiment is set up with this reaction, will there be large relative concentrations of products prese...

Q: Consider an initial mixture of N2 and H2 gases that can be

Consider an initial mixture of N2 and H2 gases that can be represented as follows: The gases react to form ammonia gas (NH3) as represented by the following concentration profile: a. Label each plot...

Q: Calculate the number of moles of each ion present in each of

Calculate the number of moles of each ion present in each of the following solutions. a. 1.25 L of 0.250 M Na3PO4 solution b. 3.5 mL of 6.0 M H2SO4 solution c. 25 mL of 0.15 M AlCl3 solution d. 1....

Q: Mercury(I) chloride, Hg2Cl2, was formerly administered orally

Mercury(I) chloride, Hg2Cl2, was formerly administered orally as a purgative. Although we usually think of mercury compounds as highly toxic, the Ksp of mercury(I) chloride is small enough (1.3 * 10-1...