Question

Question #091c8

Answer 1

The only tricky part is unit conversion.
`(1L)/(1000mL) * (1 mL) / (1 cm^3) * 250 cm^3 = 0.250L`

Answer is `1.5055^23` `ions` `Cl^(1-)`

Explanation:

`Ca(Cl)_2 -> Ca^(2+) + 2 Cl^(1-)`
`n = c * V`
`= (1 (mol)/ L) * 0.250 L`
`= 0.250 mol`

`N = N_A * n`
`= (6.022*10^23) (ions) / (mol)* (0.250) mol`
`1.5055^23` `ions` `Cl^(1-)`