Chemistry questions
29404 published questions with worked solutions.
- Concentration of HCl is 10 N. 100 mL of 1 N HCl can be obtained by diluting:
- The number of atoms in n moles of gas can be given by:
- The molality of 1 M solution of NaCl (specific gravity 1.0585 g/mL) is:
- Molarity of liquid HCl with density equal to 1.17 g/mL is:
- 171 g of cane sugar (mol. wt. = 342) are dissolved in 1000 g of water at 30°C. If the density of solution is 1.1 g/mL, then:
- 11.2 litre of NH_3 at STP has electrons:
- The normality of one molar sodium carbonate solution is:
- Strength of the solution is given by:
- How many moles of electrons weigh one kilogram?
- Sulphur forms the chlorides S_2Cl_2 and SCl_2 . The equivalent mass of sulphur in SCl_2 is 16. The equivalent mass of sulphur...
- Two solutions of a substance (non-electrolyte) are mixed in the following manner. 480 mL of 1.5 M of I solution with 520 mL of...
- What weight of sodium hydroxide is required to neutralize 100 mL of 0.1 N HCl?
- A g of a metal displaces V mL of H_2 at NTP. Equivalent weight E, of metal is:
- 6.02 10^ 20 molecules of urea are present in 100 mL of its solution. The molarity of urea solution is:
- 50 mL of an aqueous solution of glucose contains 6.02 10^ 22 molecules. The concentration of solution is:
- H_3BO_3 is:
- Molecular weight of tribasic acid is W. Its equivalent weight will be:
- Which represents per cent by volume?
- One mole electron means:
- To what extent must a given solution containing 40 mg AgNO_3 per mL be diluted to yield a solution containing 16 mg AgNO_3 per mL?