YOU DO: 1) What volume of 0.25M lithium fluoride solution can be made by dissolving 5.0 g lithium fluoride, LiF?

0.7712 L

Explanation:

Molarity = 0.25M

Volume = ?

Mass = 5.0 g

The relationship between these quantities is given as;

Molarity = Number of moles / Volume

Volume = Number of moles / Molarity

Number of moles = Mass / Molar mass

Molar mass of LiF = 25.939 g/mol

Number of moles  = 5 / 25.939 = 0.1928 mol

Volume = 0.1928 / 0.25 = 0.7712 L

in the given question, the partial pressure is calculated by using the ideal gas equation, that is, pv = nrt

here, p is pressure, v is volume = 25 l, n is number of moles = 0.0104 moles, r is gas constant = -0.0821 l.atm / mol.k

t is temperature = 273 k

p = nrt / v

p = (0.0104 mol × 0.0821 l.atm / mol.k × 273 k) / 25 l

= 0.0093 atm

the millers tale is the answer.