CHAPTER 3

Question 1

How many oxygen atoms have the same mass as three copper atoms?
[Relative atomic mass: O = 16, Cu = 64]

Accepted Answer

12

Question 2

The mass of a sulphur atom is 8 times more than the mass of a helium atom. What is the relative atomic mass of sulphur?
[Relative atomic mass: He = 4]

Accepted Answer

32

Question 3

Calculate the relative molecular mass of the carbon monoxide gas, CO
[Relative atomic mass : C=12, O=16]

Accepted Answer

28

Question 4

Calculate the relative molecular mass of the phosphorus
[Relative atomic mass : H=1, C=12, O=16, P=31]

Accepted Answer

124

Question 5

Calculate the relative molecular mass of the Sucrose
[Relative atomic mass : H=1, C=12, O=16]

Accepted Answer

342

Question 6

Calculate the relative molecular mass of the Benzoic acid
[Relative atomic mass : H=1, C=12, O=16]

Accepted Answer

122

Question 7

Calculate the relative formula mass of the sodium oxide
[Relative atomic mass : H=1, C=12, O=16, N=14, Na=23, S=32, K=39, Zn=65]

Accepted Answer

62

Question 8

Calculate the relative formula mass of the Hydrated sodium carbonate
[Relative atomic mass : H=1, C=12, O=16, N=14, Na=23, S=32, K=39, Zn=65]

Accepted Answer

286

Question 9

Calculate the relative formula mass of the potassium thiosulphate? 
[Relative atomic mass : H=1, C=12, O=16, N=14, Na=23, S=32, K=39, Zn=65]

Accepted Answer

190

Question 10

Calculate the relative formula mass of the zinc nitrate
[Relative atomic mass : H=1, C=12, O=16, N=14, Na=23, S=32, K=39, Zn=65]

Accepted Answer

189

Question 11

Element Z forms a chloride salt with the formula of ZnCl2 and relative formula mass of 95. What is the relative atomic mass of element Z?
[Relative atomic mass Cl: 35.5]

Accepted Answer

24

# 1

jawapan pendek

How many oxygen atoms have the same mass as three copper atoms? [Relative atomic mass: O = 16, Cu = 64]

# 2

jawapan pendek

The mass of a sulphur atom is 8 times more than the mass of a helium atom. What is the relative atomic mass of sulphur? [Relative atomic mass: He = 4]

# 3

jawapan pendek

Calculate the relative molecular mass of the carbon monoxide gas, CO [Relative atomic mass : C=12, O=16]

# 4

jawapan pendek

Calculate the relative molecular mass of the phosphorus [Relative atomic mass : H=1, C=12, O=16, P=31]