Question

Peter _____ não francês.
Sou
are
Estava
É

Answer 1

Answer:

A mixture of 100mmol of Ca(OH)

2

and 2g of sodium sulphate was dissolved in water and the volume was made up to 100mL. The mass of calcium sulphate formed and the concentration of OH

−

in resulting solution, respectively, are:

[Molar mass of Ca(OH)

2

,Na

2

SO

4

and CaSO

4

are 74,143 and 136gmol

−1

, respectively; K

sp

of Ca(OH)

2

is 5.5×10

−6

]