Which of the following is an intensive property?
Volume
Temperature
Length
Are
Which of the following is an example of extensive property?
Viscosity
Pressure
Density
________ is related to closeness of single measurement to its true value.
Accuracy
Precision
True value
Correct measurement
Calculate the number of He atoms in 52 u
4 atoms
12 atoms
13 atoms
52 atoms
Express 5.607892 to four significant figures and write the result in standard form.
5.657
5.608
5.607
5.609
The molecular weight of O2 and SO2 are 32 and 64 respectively. At 15oc and 150mm Hg pressure, 1L of O2 contains 'N' molecules. The number of molecules in 2L of So2 under the same conditions of temperature and pressure will be
N/2
N
2N
4N
A solution is prepared by adding 2g of a substance A to 18g of water. Calculate the mass percent of the water. Calculate the mass percent of the solute?
100%
98%
25%
10%
Calculate the molecular mass of H2O
14u
16u
18u
22u
How many electrons are present in 16g of CH4 ?
6.022 × 1024
6.22 × 1024
6.02 × 1024
6.20 × 1024
