A sample of NaNO3 weighing 0·38g is placed in a 50·0 mL volumetric flask. The flask is then filled with water to the mark on the neck. What is the molarity of the solution?
Molar mass of NaNO3 = 85 g mol-1
What is the number of significant figures in 0.0026?
What is the number of significant figures in 9.984?
Express the Avogadro's number (6·023×1023) upto three significant figures.
What is the result of (5.472 - 1.12) to the appropriate number of signficant figures?
Express 0.0468 in scientific notation.
What does SI units stand for?
What is the relation between temperature in Kelvin (K) and temperature on centigrade scale?
The popular unit of pressure is atmosphere, how is it related to pascal?
What are SI units of the following:
(i) Density
(ii) Molarity
(iii) Energy
(iv) Temperature ?
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