What is the atomic mass of HCl, MgCl2, and Pb(NO3)2?

0 ⤊

2007-04-04 09:09:21 · 4 answers · asked by Keshia M 1 in Science & Mathematics ➔ Chemistry

it's easy, just add all the atomic weights in the periodic table: HCL (36,4), MgCL2 (95,1) Pb (NO3)2 (331.1)

2007-04-04 09:20:53 · answer #1 · answered by Ivan B 5 · 0⤊ 0⤋

HCl = 1+35.5 g = 36.5 g

MgCl2 = 24+2*35.5 g = 95 g

Pb(NO3)2 = 208 + 2*(14+3*16) = 332 g

2007-04-04 09:20:42 · answer #2 · answered by ag_iitkgp 7 · 0⤊ 0⤋

Open up your periodic table. Atomic masses are listed right there.

Then remember that it'll be that many grams per mol.

2007-04-04 09:12:16 · answer #3 · answered by Brian L 7 · 0⤊ 1⤋

pay attenciones en la classe' =]

2007-04-04 09:12:16 · answer #4 · answered by Justin W 2 · 0⤊ 1⤋