Answer : The molar mass of unknown gas is, 41 g/mole
Solution : Given,
Diffusion rate of neon gas = 7 cm/s
Diffusion rate of unknown gas = 4.9 cm/s
Molar mass of neon gas = 20 g/mole
According to the Graham's law, the rate of effusion of a gas is inversely proportional to the square root of the molar mass of the gas.
Formula used :
where,
= diffusion rate of neon gas
= diffusion rate of unknown gas
= molar mass of neon gas
= molar mass of unknown gas
Now put all the given values in the above formula, we get the molar mass of unknown gas.
Therefore, the molar mass of unknown gas is, 41 g/mole
C). Viscosity
hope this helps
Answer:
You should know that density is the relation between, mass and volume as it is described in this equation: d = m/v. As the mass doesn't change in each piece, you will see that volume is less than the original, that's why each piece is 1/3 the density of the original bar or, you can also see, that you have increase by 3, the density original.
Explanation:
Answer:
Diazonium salts are salts formed from aromatic primary amines by diazotization. Diazonium salts are not very stable but very reactive. It therefore serves as a starting material for the preparation of various derivatives of arenes, azo dyes and pharmaceuticals.
