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प्रश्न
Choose the correct answer from the options given below.
In water, the hydrogen-to-oxygen mass ratio is
पर्याय
1: 8
1: 16
1: 32
1: 64
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उत्तर
1:8
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संबंधित प्रश्न
Calculate the formula unit mass of Na2O given the atomic mass of
- Zn = 65 u
- Na = 23 u
- K = 39 u
- C = 12 u
- O = 16 u
Calculate the molecular masses of the following :
Carbon dioxide, CO2
(Atomic masses : H = 1 u ; O = 16 u ; Cl = 35.5 u ; N = 14 u ; C = 12 u)
Calculate the molecular masses of the following compounds :
Ethene, C2H4
(Atomic masses : C = 12 u ; H = 1 u)
Which of the following elements has the same molecular mass as its atomic mass ?
Calculate the molar masses of the following substances. Write the results with proper units.
- Ozone molecule, O3
- Ethanoic acid, CH3COOH
Calculate:
The gram molecular mass of chlorine if 308cm3 of it at STP weighs 0.979 g.
Calculate the molecular mass of the following:
Na2SO4.10H2O
Given atomic masses of Na = 23, H = 1, O = 16, C = 12, N = 14, Mg = 24, S = 32
Molar mass of CO2 is 42g.
Calcium carbonate is decomposed on heating in the following reaction
CaCO3 → CaO + CO2
Calculate the gram molecular mass of calcium carbonate involved in this reaction.
A gas occupied 360 cm3 at 87°C and 380 mm Hg pressure. If the mass of gas is 0.546 g, find its relative molecular mass.
