Help
Contact
For teachers and institutes
Search courses, problems, tests…
A
A
>_
StemPy Lab
Courses ▾
Problems ▾
Practice ▾
Mock Tests
Classes
Groups
Community ▾
A
A
Problems
/
Acids, Bases and Salts
/
Salts and Their Uses
Salts and Their Uses
Chemistry
+ Upload a Problem
More in Acids, Bases and Salts
Acids and Bases
Salts and Their Uses
pH and Neutralisation
All Levels
High School (9–10)
General
All
Easy
Medium
Sort
Mixed
Newest first
Oldest first
A to Z
10 problems
Type:
Any
Conceptual
Numerical
1.
516 g of gypsum, CaSO₄ · 2H₂O (172 g/mol), is heated to 373 K.
High School (9–10), General · Salts and Their Uses
StemPy Lab
Medium
2.
Washing soda is Na₂CO₃ · 10H₂O. Use Na = 23, C = 12, O = 16 and H = 1.
High School (9–10), General · Salts and Their Uses
StemPy Lab
Medium
3.
9.98 g of blue copper sulphate, CuSO₄ · 5H₂O (249.5 g/mol), is heated until it is white.
High School (9–10), General · Salts and Their Uses
StemPy Lab
Medium
4.
How is bleaching powder made? Write the equation, and give three uses of it.
High School (9–10), General · Salts and Their Uses
StemPy Lab
Easy
5.
Why do bakers use baking powder, and not baking soda alone, in a cake?
High School (9–10), General · Salts and Their Uses
StemPy Lab
Medium
6.
146.25 g of sodium chloride is electrolysed in brine: 2NaCl + 2H₂O → 2NaOH + Cl₂ + H₂.
High School (9–10), General · Salts and Their Uses
StemPy Lab
Medium
7.
What is made when electricity is passed through brine?
High School (9–10), General · Salts and Their Uses
StemPy Lab
Medium
8.
Sort these salts into the chlorides, the sulphates and the sodium salts.
High School (9–10), General · Salts and Their Uses
StemPy Lab
Easy
9.
Is the solution of each salt acidic, neutral or basic?
High School (9–10), General · Salts and Their Uses
StemPy Lab
Medium
10.
Name the salt made in each reaction, and write its formula.
High School (9–10), General · Salts and Their Uses
StemPy Lab
Easy
StemPy Lab