Derbie

This page lists questions and answers that were posted by visitors named Derbie.

Questions

The following questions were asked by visitors named Derbie.

Answers

The following answers were posted by visitors named Derbie.

Molar mass of Pb(NO3)2 is 207+2*14+2*3*16=331g/mol. But mole=mass/ molar mass. :- 1mole=mass (g)/331g/mol. Mass=mole*molar mass :- mass(g) = 1mole * 331g/mole =331grammes (ans)
11 years ago
Work done=force * distance :- work = 45.0N * 1.50m =67.5J
11 years ago