Questions from General Chemistry

Q: What mass of AgBr dissolves in 200 mL of 0.200

What mass of AgBr dissolves in 200 mL of 0.200 M NaCN?

Q: A 0.5002-g sample that assayed 96.4

A 0.5002-g sample that assayed 96.4% Na2SO4 required 48.63 mL of a barium chloride solution. Reaction: Ba21 + SO4 22 → BaSO4(s) Calculate the analytical molar concentration of BaCl2 in the solution....

Q: The equilibrium constant for formation of CuCl2 2 is given by What

The equilibrium constant for formation of CuCl2 2 is given by What is the solubility of CuCl in solutions having the following analytical NaClconcentrations: a. 5.0 M? b. 5.0 × 10-1 M?...

Q: In contrast to many salts, calcium sulfate is only partially dissociated

In contrast to many salts, calcium sulfate is only partially dissociated in aqueous so Kd = 5.2 × 10-3 The solubility-product constant for CaSO4 is 2.6 × 10-5 . Calculate t...

Q: Calculate the molar solubility of Tl2S as a function of pH over

Calculate the molar solubility of Tl2S as a function of pH over the range of pH 10 to pH 1. Find values at every 0.5 pH unit, and use the charting function of Excel to plot solubility versus pH.

Q: Demonstrate how the sulfide ion concentration is related to the hydronium ion

Demonstrate how the sulfide ion concentration is related to the hydronium ion concentration of a solution that is kept saturated with hydrogen sulfide.

Q: The phosphorous content in ppm was measured for three different soil locations

The phosphorous content in ppm was measured for three different soil locations. Five replicate determinations were made on each soil sample. A partial ANOVA table follows: a. Fill in the missing entri...

Q: Why are simplifying assumptions in equilibrium problems restricted to relationships that are

Why are simplifying assumptions in equilibrium problems restricted to relationships that are sums or differences?

Q: Define a. Molar mass. b. Millimole.

Define a. Molar mass. b. Millimole. c. Millimolar mass. d. Parts per billion.

Q: Find the amount in millimoles of the indicated species in a

Find the amount in millimoles of the indicated species in a. 12.92 g of NaHCO3 b. 57 mg of MgNH4PO4. c. 850 mg of P2O5. d. 40.0 g of CO2.