Home
Class 10
CHEMISTRY
Calculate the mass percentage of each el...

Calculate the mass percentage of each element in water `(H_(2)O)`

Text Solution

Verified by Experts

Molar mass of `H_(2)O=2+16=18g`
(i) Mass of percentage of H atoms in `H_(2)O=(2xx"Atomicmass ofH")/("Molecular mass of" H_(2)O)xx100`
`=(2xx1)/(18)xx100=11.11%`
(ii) Mass percentage of O atom in `H_(2)O=(1xx"Atomicmass of H")/("Molecular mass of" H_(2)O)xx100`
`=(16)/(18)xx100=88.89%`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • MOLE CONCEPT AND STOICHIOMETRY

    ICSE|Exercise QUESTIONS|21 Videos

  • MOLE CONCEPT AND STOICHIOMETRY

    ICSE|Exercise NUMERICAL PROBLEMS |21 Videos

  • MOLE CONCEPT AND STOICHIOMETRY

    ICSE|Exercise ILLUSTRATIVE ASSIGNMENTS|28 Videos

  • MODEL PAPER-2

    ICSE|Exercise SECTION-II|56 Videos

  • MOLE CONCEPT AND STOICHIOMETRY

    ICSE|Exercise ASSERTION AND REASON BASED QUESTIONS|1 Videos

Similar Questions

Explore conceptually related problems

Butyric acid contains only C, H and O. A 4.24 mg sample of butyric acid is completely burnt. It gives 8.45 mg of carbon dioxide and 3.46 mg of water. What is the mass percentage of each element in butyric acid?

Calculate the percentage composition of each element in Potassium chlorate, KClO_3 .

Calculate the percentage compostion of various elements in the following compounds: Blue vitriol (CuSO_(4). 5H_(2) O) b. Green vitriol (Fe SO_(4) . 7H_(2) O) c. White vitriol (ZnSO_(4). 5H_(2) O) d. Ethanol (C_(2) H_(5) OH) e. Mohr's salt [(NH_(4))_(2) SO_(4). FeSO_(4). 6H_(2) O]

Calculate the percentage composition of various elements in : Sodium carbonate, Na_2CO_3 Given that the relative atomic masses of O = 16, Na = 23 and C = 12.

Calculate the percentage of water molecules in hydrated calcium sulphate . [Ca=40 , S=32 , O=16 , H=11]

Calculate the mass of each of the following at STP: 5.6L O_(2)

Calculate the percentage of boron (B) in borax, Na_(2)B_(4)O_(7). 10H_(2)O . (H = 1, B = 11, O = 16, Na = 23)

(a) Calculate the relative molecular mass of water (H_(2)O) . (b) Calculate the molecular mass of HNO_(3) .

Calculate the total percentage of oxygen in magnesium nitrate crystals Mg(NO_(3))_(2).6H_(2)O (Atomic masses H = 1, N = 14, O = 16, Mg = 24)

Calculate the mass of each of the following at STP: 22.4 L H_(2)

Home
Profile