Chemistry
(i) State the volume occupied by 40 gm. of methane at stp if it's vapour density is 8.
(ii) Calculate the number of moles present in 160 g of NaOH.
[Na = 23, H = 1, O = 16]
Related Questions
Calculate the number of molecules in 4.4 gm. of CO2
[C = 12, O = 16]
Fill in the blank from the choices given in bracket : The number of moles in 11 g. of nitrogen gas is …………… [0.39, 0.49, 0.29] [N = 14]
Samples of O2, N2, CO and CO2 under the same conditions of temperature and pressure contain the same number of molecules represented by X. The molecules of oxygen occupy V litres and have a mass of 8 g. Under the same conditions of temperature and pressure, what is the volume occupied by :
(i) X molecules of N2.
(ii) 3X molecules of CO.
(iii) What is the mass of CO2 in grams.
(iv) In answering the above questions, whose law has been used.
[C = 12, N = 14, O = 16]
Define the term 'atomic weight'.