Question

Calculate how many moles there are in the following:
1.1342 x 1022 molecules of CuBr2.

Answer 1

To determine the number of moles in 1.1342 x 10^22 molecules of CuBr2, divide the number of molecules by Avogadro's number (6.022 x 10^23). This calculation results in approximately 0.0188 moles of CuBr2.

Step-by-step explanation:

To calculate the number of moles in 1.1342 x 1022 molecules of CuBr2, we need to use Avogadro's number, which is 6.022 x 1023 molecules per mole. The formula to convert molecules to moles is:

Number of moles = (Number of molecules) ÷ (Avogadro's number)

Applying this to the given number of molecules:

Number of moles = (1.1342 x 1022) ÷ (6.022 x 1023).

If we perform this calculation, the result is:

Number of moles = 1.88 x 10-2 moles of CuBr2