Question

Chromium metal is used for decorative electroplating of car bumpers and other surfaces. Find the mass of 0.56 moles of Chromium. (Molar Mass Cr = 52g / mol)​

Answer 1

Answer:

The mass of $0.56$ mol of chromium is $29.12$ g·

Explanation:

Given that,

The number of moles of Chromium, n $=$ $0.56$ mol

The molar mass of Chromium  $=$  $52\ \frac{g}{mol}$

To find out the mass of chromium present in its $0.56$ mol,

We have the relation that,

  $n\ =\ \frac{Mass}{Molar\ Mass}$

where,

n $=$  Number of moles of an element

On rearranging the equation with the unknown mass on the left-hand side, the relation becomes,

 ⇒  Mass  $=$  n  ×  Molar Mass

On substituting the values, we get

 ⇒ Mass  $=$  $0.56$ × $52$

 ⇒ Mass  $=$ $29.12$ g

Therefore,

The mass of $0.56$ mol of chromium is $29.12$ g·