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प्रश्न
Fill in the following blanks :
60 g of carbon element are .............. moles of carbon atoms.
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उत्तर
60g of carbon element are 5 moles of carbon atoms.
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संबंधित प्रश्न
Which has more number of atoms, 100 grams of sodium or 100 grams of iron (given, atomic mass of Na = 23 u, Fe = 56 u)?
What is the mass of 10 moles of sodium sulphite (Na2SO3)?
How many moles are 3.6 g of water ?
Fill in the following blanks :
0.5 mole of calcium element has a mass of ............... .
What weight of each element is present in 1.5 moles of sodium sulphite, Na2SO3 ?
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A sample of ammonium nitrate when heated yields 8.96 litres of steam (measured at STP)
NH4NO3 → N2O + 2H2O
What mass of ammonium nitrate should be heated to produce 8.96L of steam?
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 Al are present in 0.2 mole of it?
How many grams of HCl are present in 0.1 mole of it?
Deduce the number of molecules of the following compound in the given quantity.
90g water
