Chemistry Answers

2 Pb(NO3)2 --> 2 PbO + 4 NO2 + O2  

How many grams of lead (II) oxide are produced to form 5 grams of oxygen? 

How many grams of lead (II) nitrate are needed to make 7 moles of nitrogen dioxide  

How many moles of oxygen can be made from 14 moles of lead (II) nitrate?  

Calculate the potential of a cell where the Al³⁺ concentration is only 0.10 M. 

2 Al (s) + 3 Cu²⁺ (aq, 1.0 M) → 2 Al³⁺ (aq, 1.0 M) + 3 Cu (s)

What's the best way of finding percentage composition of a substance contributed by each element?

How many electrons can fill the p-subshell

I would like to know the volume of ammonium hydroxide required to add to an aqueous mixture of sulphuric acid and acetic acid to bring the pH up to 5

NH₄OH_(aq)+ CH₃COOH _(aq) = CH₃COONH_4(aq) + H₂O_(l)

2NH₄OH_(aq) + H₂SO_4(aq) -> 2(NH₄)⁺SO_4(aq)^2- + 2H₂O _(l)

Sulphuric acid molarity: 0.08 mol/L - 6597 mols total - 1.07 pH

Acetic acid molarity: 0.09 mol/L - 7176 mols total - 2.89 pH

How many ml of 1.2 M H2SO4 are required to neutralize 25.0 ml of 1.5 M NaOH?

How many ml of 1.2 M H2SO4 are required to neutralize 25.0 ml of 1.5 M NaOH?

if 32.0 g CaC2 are consumed in this reaction, how many moles of H20 are needed?

Food stored in refrigerator last longer that food stored in a kitchen cabinet. Explain why

Calculate the volume of O2 gas at STP, which is produced from the decomposition of 43.3 g of HgO. The yield of the reaction is 60%.