Related InterviewSolutions

• Calculate the following :Has higher mass : 1 mole of CO2 or 1 mole of CO [C = 12, O = 16]
• A vessel contains X number of molecules of hydrogen gas at a certain temperature & pressure. Under the same conditions of temperature & pressure, how many molecules of nitrogen gas would be present in the same vessel.
• Select the correct answer from A, B, C and D : The ratio between the number of molecules in 2g of hydrogen and 32g of oxygen is: k (A) 1 : 2 (B) 1 : 0.01 (C) 1:1 (D) 0.01 : 1 [H = 1, O = 16]
• Explain the following :Is it possible to change the temperature and pressure of a fixed mass of gas without changing its volume ?
•  Explain the following :One mole of hydrogen contains 2 x 6.023 x 1023 atoms of hydrogen where as one mole of helium contains 6.023 x 1023 atoms of helium
• A gas cylinder can hold 1 kg. of H2 at room temp. & press: State the law that helped you to arrive at the above result.
• what volume (in ml)of 0.2M H2SO4 solution should be mixed with the 40ml of 0.1M NaOH SOLUTIONsuchthat the resulting solution has concentration of H2SO4  as (6/55)M
• A compound is formed by 24 grams of X and 64 grams of oxygen, if X = 12 and O = 16. Find the simplest formula of the compound. ” 
• What is the important information given by a balanced chemical equation of decomposition of hydrogen peroxide ?
•  What are the limitations of a chemical equation?