Advertisements
Advertisements
प्रश्न
How many grams of CO2 is present in 0.1 mole of it?
Advertisements
उत्तर
1 mole of CO2 weighs = 12 + (16 x 2) = 44 g
∴ 0.1 mole of CO2 has mass = 0.1 x 44 = 4.4 g
APPEARS IN
संबंधित प्रश्न
Calculate the molar mass of the following substance:
Ethyne, C2H2
What is the mass of 1 mole of nitrogen atoms?
What name is given to the amount of substance containing 6.022 × 1023 particles(atoms,molecules or ions) of a substance ?
Fill in the following blanks :
64 g of oxygen gas contains ................ moles of oxygen atoms.
What is the mass of 5 moles of sodium carbonate (Na2CO3) ?
(Atomic masses : Na = 23 u ; C = 12 u ; O = 16 u)
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]
Calculate the mass of 0.1 mole of the following:
CaCl2
(Ca = 40, Na=23, Mg =24, S=32, C = 12, Cl = 35.5, O=16, H=1)
Calculate the number of atoms in the following:
52 g of He
Deduce the number of molecules of the following compound in the given quantity.
90g water
Deduce the number of molecules of the following compound in the given quantity.
8.8g carbon dioxide
