15 ml of 0.0456 g/L Cu2+ was mixed with 65 ml of water. What is the molarity of Cu2+?

0 ⤊

2007-07-15 14:12:54 · 2 answers · asked by hennessee_h 1 in Science & Mathematics ➔ Chemistry

Find first the molecular weight of Cu2+ then multiply it with 0.0456g/L...1 mole of Cu2+ = MW of Cu2+

2007-07-15 14:25:49 · answer #1 · answered by chem-o-phobic 2 · 0⤊ 0⤋

0.0456 g/L * 15 mL * 1 L / 1000 mL = 0.000684 g Cu2+
0.000684 g / (127.092 g/mol) /.080 L = .00006.73 mol/L

0.0000673 M Cu2+

That was kind of fun

2007-07-15 22:05:35 · answer #2 · answered by James L 7 · 0⤊ 0⤋