Inorganic Chemistry Answers

a solution containing 0.275 g of NaOH require 35.5ml .of HCl for neutralization. what is the normality of HCl

a solution containing 0.275 g of NaOH require 35.5ml .of HCl for neutralization. what is the normality of HCl?

a one molar solution of HCl is about 92 percent ionized at room temperature .Calculate Ka for HCl.

The chemical equation below shows the complete combustion of propane , C3H8.
C3H8 (g) + 5O2 (g) --> 4H2O(g) + 3CO2 (g)

What is the mass of oxygen required or the complete combustion of 200cm3 of propane measured at r.t.p.?

A. 0.650 g
B. 0.923 g
C. 1.14 g
D. 1.33 g

The reaction between magnesium and dilute nitric acid is shown below.

Mg (s) + 2HNO3 (aq) ---> Mg(NO3)2 (aq) + H2 (g)

From the equation. it can be deduced that

A. 1 g of magnesium reacts with 2 g of nitric acid in a complete reaction.
B. 6 g of magnesium reacts with 31.5 g if nitric acid in a complete reaction.
C. 24 dm3 of magnesium reacts with 48 dm3 of nitric acid in a complete reaction.
D. 1 mol of magnesium reacts with 0.5 mol of nitric acid in a complete reaction.

The number of atoms in 22g of strontium is z . What is the number of bromine molecules in 20g of bromine gas ?

On heating to dryness, 3.10g of a hydrated salt produced 2.02g of anhydrous salt.The formula of the hydrated salt is represented as M.xH2O. If the molecular mass of salt M is 202g/mol , what is the value of x ?
ans: A. 4
B. 5
C. 6 ( )
D. 7

What is the pH of 0.2 mole HCl added to 1 litre of the buffer of acetic acid and sodium acetate?

I would like to salvage isotopic Cadmium from old tubes. The tube contain from 3 to 5 grams of Cd.

Generally, I dissolve out the Cadmium with acids, i.e. HCL, H2SO4 or HNO3. This leaves me with an acid Cadmium solution. There usually are not any percipatates, but I assume it produces Cadmuim Sulphide, Cadmium Oxide etc.

How can I complete the process to drop out the Cd in pure metal form.

Example,...Copper Sulphate mixed with Iron filings will drop out the pure Copper metal and form Iron Sulphate.

A solution contains 0.50M NH3 and 1.50MNH4Cl. What is the maximum concentration ogMG^2+ that can be present in such a solution (without) precipitating Mg(OH)2?