Question

Help pretty please :)

I take 100 g of calcium phosphate Ca3(PO4)2 and dissolve it into 200 mL. What is the concentration of the solution?

Answer 1

well find the molarity, use w/m*100/v

Answer 2

\[M=\frac{ w }{ m }*\frac{ 1000 }{ V }=\frac{ 100 }{ 310 }*\frac{ 1000 }{ 200 }=1.6129 M\]

Answer 3

this is your concentration

Answer 4

can you identify where center numbers came from.

Answer 5

well w-- weight of calcium phosphate that is given and is equal to 100g
m-- molar mass of calcium phosphate= 310g
v-- volume of solution 200ml :D :D

Answer 6

@Lanik does that help?

Answer 7

what about the 1000

Answer 8

well its in the formula of finding molarity that is why i have written 1000 ml its a reference in molarity formula

Answer 9

okay