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प्रश्न
Explain the term:
Gram mole
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उत्तर
A sample of a substance with its mass equal to its gram molecular mass is called one gram molecule of this substance or one gram mole.
For example, the gram molecular mass of oxygen is 32g. So one gram mole of oxygen is 32g.
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संबंधित प्रश्न
Calculate the molar mass of the following substance:
Hydrochloric acid, HCl
What is the mass of 1 mole of nitrogen atoms?
Convert into mole.
12 g of oxygen gas
Choose the correct answer from the options given below:
The ratio between the number of molecules in 2g of hydrogen and 32g of oxygen is:
[Given that H = 1, O = 16]
Consider the following reaction and based on the reaction answer the questions that follow :
\[\ce{(NH4)2Cr2O7 ->[heat] N2(g) + 4H2O(g) + Cr2O3}\]
Calculate :
(i) The quantity in moles of (NH4)2Cr2O7 if 63 gm of (NH4)2Cr2O7 is heated.
(ii) The quantity in moles of nitrogen formed.
(iii) The volume in litres or dm3 of N2evolved at STP.
(iv) The mass in grams of Cr2O3 formed at the same time
[Atomic masses : H = 1, Cr=52, N=14]
How many grams of CO2 is present in 0.1 mole of it?
Calculate the mass of 0.1 mole of the following:
CaCO3
(Ca = 40, Na = 23, Mg = 24, S = 32, C = 12, Cl = 35.5, O = 16, H = 1)
The molecular formula for elemental sulphur is S8. In a sample of 5.12 g of sulphur:
How many moles of sulphur are present?
Calculate the number of gram atoms in 4.6 gram of sodium.
Calculate the number of moles in 27g of Al.
