What is the mass of solute in a 500 mL solution of 0.200 M
sodium phosphate (Na3PO4: M. W. 164.0)?

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.

1 a

2 d

3 a

4 c

explanation:

може ли да зареждате повече информация, моля