This quiz contains multiple-choice problems on concepts like mole, density, specific gravity, flow rate and mass fraction.
How many atoms of carbon represent 1.5 mole?
6.022 X 10^23
1.2044 X 10^23
3.011 X 10^23
9.033 X 10^23
Which of the following is not a unit of density?
kg/m^3
N/m^3
N.s^2/m^4
g/cm^3
A liquid of mass 10 kg is enclosed in a cylinder of radius 1 m and length 5 m. What is the density of the liquid?
0.54 kg/m^3
0.44 kg/m^3
0.63 kg/m^3
0.83 kg/m^3
What is the density of a liquid of mass of 10 kg and contained in a cylinder of radius 5 m and surface area (excluding top and bottom) of 10π m^2?
0.2π kg/m^3
0.4π kg/m^3
0.5π kg/m^3
0.6π kg/m^3
A solid of density d is dropped into a liquid of density D. If d > D, then
The solid would sink completely
The solid would float
The solid would sink partially
None of the above
How many hydrogen moles are present in 158 g of ammonium bicarbonate?
5
10
15
20
What is the density of a substance of mass 10 g and volume of 5 litres?
2 kg/m^3
20 kg/m^3
200 kg/m^3
2000 kg/m^3
How many g of NaCl represents 1 mole?
23
35.5
58.5
69.5
Calculate the number of moles in 42 g of NaHCO{3}.
0.5
1
1.5
2
Calculate the number of moles in 369 g of CaOCl{2}.
1
2
3
4
What is the number of moles of nitrogen in 274 g of (NH{4}){2}Ce(NO{3}){6}?
16
8
6
4
How many hydrogen moles are present in NH{4}[Cr(SCN){4}(NH{3}){2}] if the weight of nitrogen in it is 49 g?
3.5
5
7
10
Which of the following has the same number of moles as in 398 g of CuSO{4}?
2 g of hydrogen
40 g of oxygen
35 g of nitrogen
58.5 g of sodium chloride
What is the number of atoms of chlorine in 250.5 g of Cl{2}O{6}?
1.806 X 10^24
2.408 X 10^24
9.033 X 10^23
6.022 X 10^23
How many water molecules are present in CuSO{4}•5H2O if the weight of oxygen in it is 36 g?
3.25 X 10^23
5.25 X 10^23
7.52 X 10^23
9.52 X 10^23