Question

Can you answer pls? thanks

translation of the question: One mol of a metal, which has a density of 7,86 g/cm^3, occupies a volume of 7,10cm^3. Of which metal are we speaking about?

Answer 1

Iron

Step-by-step explanation:

Given data:

Density of metal = 7.86 g/cm³

Volume = 7.10 cm³

Moles of metal = 1 mol

Metal present = ?

Solution:

D = m/v

m = d×v

m = 7.86 g/cm³ × 7.10 cm³

m = 55.806 g

Number of moles = mass/ molar mass

Molar mass = mass/ number of moles

Molar mass = 55.806 g / 1 mol

Molar mass = 55.806 g/mol

The molar mass of iron is 55.8 so given data is about iron metal.