Moles Sets Random Retrieval

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Moles Sets Random Retrieval

This quiz contains all the questions in the Moles Sets section. The website will pick 10 questions at random.

1 / 10

Barium hydroxide solution will neutralise hydrochloric acid according to the equation

Ba(OH)2+2HCl =>BaCl2+2H2O

If 20 cm3 of 2mol dm-3 HCl neutralises 100 cm3 of Ba(OH)2 solution, what is the concentration of the Ba(OH)2 solution?

2 / 10

Potassium hydroxide will neutralise nitric acid according to the equation

KOH+ HNO3=>KNO3+ H2O

25 cm3 of 4.0mol dm-3 HNO3is neutralised by 100 cm3 of KOH solution.

What is the concentration of the KOH solution?

3 / 10

The formula mass of (NH4)2SO4 is:

4 / 10

Combustion of 7.8g of potassium produced 14.2g of an oxide. Which of the following is the simplest formula of the oxide of potassium formed?

5 / 10

A sample of a compound containing copper and sulfur only was found to contain 127g of copper and 64g of sulfur. What is the empirical formula of the compound?

6 / 10

ICl

7 / 10

ammonium chloride

8 / 10

0.100mol of X atoms has a mass of 15.2g. The element is a mixture of two isotopes in equal amounts. One of these is 151X. What is the mass number of the other isotope?

9 / 10

Calculate the number of moles of phosphorus atoms in 3.10g of phosphorus

10 / 10

Calculate the relative molecular mass (formula mass) of silver sulphate, Ag2SO4

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