What is the percent by mass of a solution that contains 25 g KNO3 in 400.0 g H2O?

3 examples of electrochemical cell

What is the pH of a 3.40 mM of acetic acid, 500 mL in which 50 mL of 1.00 M NaOAc has been added? Ka HOAc is 1.8 x 10-5? What percentage of the acid is dissociated?

When a person has excess stomach acid, he or she may ingest some sodium bicarbonate. The rationale for doing this is that the sodium bicarbonate is: a base and will neutralize the excess acid an acid and will weaken the excess acid neutral and will

If 0.0262 mol of cacl2 is dissolved in water to make a 0.520 m solution, what is the volume of the solution?

All of the following contribute to the large, negative, free-energy change upon hydrolysis of "high-energy" compounds except: a. stabilization of products by extra resonance forms b. stabilization of products by ionization c.

How many moles of H2O are there in1.0g of H20?

Which property of gases allows them to be stored at high concentrations in a bottle of air freshener? What changes occur at the molecular level when ice cream melts and forms a liquid?

a gas has a volume of 6 liters and a pressure of 1.5 atm. if the container is compressed to a volume of 2 liters, what will the pressure of the gas be?

When metals react with nonmetals, an ionic compound generally results. what is the predicted general formula?

Why could the Bohr model not predict line spectra for atoms other than hydrogen?