Concise Chemistry Class 9>Chapter 1 - The Language of Chemistry>EXERCISE 1(C)>Q 13

EASY

9th ICSE

IMPORTANT

Earn 100

Give the empirical formula of glucose $(C_{6} H_{12} O_{6})$ .

Important Questions on The Language of Chemistry

EASY

9th ICSE

IMPORTANT

Concise Chemistry Class 9>Chapter 1 - The Language of Chemistry>EXERCISE 1(C)>Q 13

Give the empirical formula of acetylene

(C_{2} H_{2})

.

EASY

9th ICSE

IMPORTANT

Concise Chemistry Class 9>Chapter 1 - The Language of Chemistry>EXERCISE 1(C)>Q 13

Give the empirical formula of acetic acid

({CH}_{3} COOH)

.

MEDIUM

9th ICSE

IMPORTANT

Concise Chemistry Class 9>Chapter 1 - The Language of Chemistry>EXERCISE 1(C)>Q 14

Find the mass percentage of water in Epsom salt,

{MgSO}_{4} . 7 H_{2} O

.

MEDIUM

9th ICSE

IMPORTANT

Concise Chemistry Class 9>Chapter 1 - The Language of Chemistry>EXERCISE 1(C)>Q 15

Calculate the percentage of phosphorus in calcium dihydrogen phosphate

[Ca {(H_{2} {PO}_{4})}_{2}]

.

MEDIUM

9th ICSE

IMPORTANT

Concise Chemistry Class 9>Chapter 1 - The Language of Chemistry>EXERCISE 1(C)>Q 15

Calculate the percentage of phosphorus in calcium phosphate

[{Ca}_{3} {({PO}_{4})}_{2}]

.

MEDIUM

9th ICSE

IMPORTANT

Concise Chemistry Class 9>Chapter 1 - The Language of Chemistry>EXERCISE 1(C)>Q 16

Calculate the percentage of each element in potassium chlorate

({KClO}_{3})

.

MEDIUM

9th ICSE

IMPORTANT

Concise Chemistry Class 9>Chapter 1 - The Language of Chemistry>EXERCISE 1(C)>Q 17

Urea is a very important nitrogenous fertilizer. Its formula is

{CON}_{2} H_{4}

. Calculate the mass percentage of carbon in urea.