Calculate the molar mass of each salt. Element Molar mass (g/mol)
Beryllium (Be) 9.012
Magnesium (Mg) 24.31
Cobalt (Co) 58.93
Cadmium (Cd) 112.41
Iodine (II) 126.90

a. The Molar mass of CaBr2 is:
b. The Molar mass of BeBr2 is:
c. The Molar mass of CdBr2 is:
d. The Molar mass of CuBr2 is:

a.

b.

c.

d.

Explanation:

Hello!

In this case, since the molar mass of a compound is computed by adding the molar mass of each element composing it and multiplying it by the number of atoms in the molecule, we have:

a.

b.

c.

d.

Best regards!

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