AP Chemistry

How many grams of oxygen are in 28.2 g of H2SO4?

How many grams of disulfur decafluoride are present in 2.15 moles of this compound? grams

Assign oxidation numbers to each element in this compound. NO N = O =

Mass, size, and color are examples of what?

7. How many Joules of heat energy are absorbed in raising the temperature of 10. grams of water from 5.0°C to 20.°C? A) 1.1 x 103 B) 8.4 x 102 C) 6.3 x 102 D) 2.1 x 102

PCl3 (g) + Cl2 (g) ⇋ PCl5 (g) Kc = 91.0 at 400 K. What is the [Cl2] at equilibrium if the initial concentrations were 0.24 M for PCl3 and 1.50 M for Cl2 and 0.12 M PCl5.

How much CO2 is produced from 10g of CH4?

Balance the following redox reaction in acidic solution. Zn (s) + MnO-4 (aq) → Zn+2 (aq) + Mn+2 (aq)

66.0g of dry ice (solid carbon dioxide)

Select all the discoveries for which ernest rutherford is credited. the emissions of radioactive elements the neutron the electron the proton

Calculate the concentration of a solution made by diluting 86.0 mL of 4.4 M HBr to a final volume of 575.0 mL. Significant figures are graded for this problem. Be sure you do not round your answers until the very end of your calculations.