Question

please answer this question correctly.....​

Answer 1

Answer:

i) The mole (abbreviated mol) is the SI measure of quantity of a “chemical entity,” such as atoms, electrons, or protons. It is defined as the amount of a substance that contains as many particles as there are atoms in 12 grams of pure carbon-12. So, 1 mol contains 6.022×1023 elementary entities of the substance.

ii) The molecular weight ( molar mass ) of any gas is the mass of one particle of that gas multiplied by Avogadro's number (6.02 x 1023). Knowing the molar mass of an element or compound can help us stoichiometrically balance a reaction equation.

iii) Which has more number of atoms, 100 grams of sodium or 100 grams of iron (given, atomic mass of Na = 23 u, Fe = 56 u)? Therefore, 100 grams of sodium contains more number of atoms than 100 grams of iron.

Answer 2

Answer

• so, there is inverse relationship between the moles and molar mass. SO2 has large molar mass and hence less number of moles. Reverse is the case of NH3.
• so, there is inverse relationship between the moles and molar mass. SO2 has large molar mass and hence less number of moles. Reverse is the case of NH3.so2 has more amount of gas.
• so, there is inverse relationship between the moles and molar mass. SO2 has large molar mass and hence less number of moles. Reverse is the case of NH3.so2 has more amount of gas.NH3 has more no. of atom.