Advertisements
Advertisements
प्रश्न
Which of the following pair of elements represents a mole ratio of 1 : 1 ?
पर्याय
10 g of calcium and 12 g of magnesium
12 g of magnesium and 6 g of carbon
12 g of magnesium and 6 g of carbon
20 g of sodium and 20 g of calcium
Advertisements
उत्तर
12 g of magnesium and 6 g of carbon
12 g of magnesium and 6 g of carbon will have a mole ratio of 1 : 1.
APPEARS IN
संबंधित प्रश्न
Calculate the mole ratio of 240 g of calcium and 240 g of magnesium. (Ca = 40 u ; Mg = 24 u)
Determine the number of molecules in a drop of water which weighs 0.09 g.
The molecular formula for elemental sulphur is S8. In a sample of 5.12 g of sulphur:
How many moles of sulphur are present?
Solid ammonium dichromate decomposes as:
\[\ce{(NH4)2Cr2O7 -> N2 + Cr2O3 + 4H2O}\]
If 63 g of ammonium dichromate decomposes. Calculate the quantity in moles of (NH4)2Cr2O7.
Calculate the number of moles in 1.51 × 1023 molecules of NH4Cl.
How many grams are there in the following?
2 moles of the hydrogen molecule, H2.
How many grams are there in the following?
5 moles of sulphur molecule, S8
How many grams are there in the following?
4 moles of the phosphorous molecule, P4
Calculate the number of moles of magnesium present in a magnesium ribbon weighing 12 g. Molar atomic mass of magnesium is 24g mol–1.
The difference in the mass of 100 moles each of sodium atoms and sodium ions is 5.48002 g. Compute the mass of an electron.
