General Chemistry Answers

Carry out the following operations as if it were a calculation of real experimental results. Express the answer with the correct number of significant figures.

(3.26 × 10⁻³ mg ) − (7.88 × 10⁻⁵ mg )

Consider the equilibrium 2I(g) Δ I2(g) What would be the effect on the position of equilibrium of (a) increasing the total pressure on the system by decreasing its volume; (b) adding gaseous I2 to the reaction mixture; and (c) decreasing the temperature at constant volume?

Calculate E o for the following cells: a) Cl2/ClO3 - //O2/H2O b) OH- /O2//ClO3 - /Cl- (basic medium)

 A 0.5-g sample of TNT(C7H5N2O6) is burned in a bomb calorimeter containing 610 g of water at an initial temperature of 20°C. The heat capacity of the bomb is 420 J/°C and the heat of combustion of TNT is 3374 kJ/mol. Calculate the final temperature of the water and calorimeter once the reaction is complete.