General Chemistry Answers

what is filled subatomic particles worksheet

calculate the mass of lead deposited from a solution of lead(ii) trioxonitrate(v) by the same quantity of electricity depositing 1.35g of copper

An experiment to measure the enthalpy change for the reaction of aqueous copper(II) sulfate, CuSO4(aq) and zinc, Zn(s) was carried out in a coffee cup calorimeter as follows. Cu2+(aq) + Zn(s) → Cu(s) + Zn2+(aq) 50.0 cm3 of 1.00 mol dm–3 copper(II) sulfate solution was placed in a polystyrene cup and its average temperature after three readings was noted to be 25OC and the zinc powder was added . The final temperature was noted to be 91.5 OC. Calulate the heat of the reaction in kJ

An experiment to measure the enthalpy change for the reaction of aqueous copper(II) sulfate, CuSO4(aq) and zinc, Zn(s) was carried out in a coffee cup calorimeter as follows. Cu2+(aq) + Zn(s) → Cu(s) + Zn2+(aq) 50.0 cm3 of 1.00 mol dm–3 copper(II) sulfate solution was placed in a polystyrene cup and its average temperature after three readings was noted to be 25OC and the zinc powder was added . The final temperature was noted to be 91.5 OC. Calulate the heat of the reaction in kJ 

The bay of fundy

Explain the effect if a burette is contaminated with a base solution

What is the concentration of a acetic acid and the pH in a solution that is 0.25% ionized.

Calculate the mass of chlorine gas contained in a 5.00 dm3 flask at 25°c and 98kPa pressure.

Assign oxidation numbers to each atom in each of the following molecules ions

1. HClO4