Question

I para realizar un receta casera de bizcocho se necesitan 100 gramos de azúcar, calcula los moles a los que equivale y el número de moléculas de sacarosa.

Answer 1

The complete question is as follows: I want to make a homemade cake recipe you need 100 grams of sugar, calculate the moles to which it is equivalent and the number of molecules of sucrose.

Answer: In 100 grams of sugar there are 0.292 moles and the number of molecules of sucrose are
`1.76 * 10^(23)`.

Step-by-step explanation:

Given: Mass = 100 g

Molar mass of sugar = 342.3 g/mol

As number of moles is the mass of substance divided by its molar mass.

Hence, moles of sucrose are calculated as follows.

`Moles = (mass)/(molar mass)\\= (100 g)/(342.3 g/mol)\\= 0.292 mol`

According to mole concept, 1 mole of every substance contains
`6.022 * 10^(23)` molecules.

Hence, the number of molecules present in 0.292 mol are calculated as follows.

`0.292 mol * 6.022 * 10^(23)\\= 1.76 * 10^(23)`

Thus, we can conclude that in 100 grams of sugar there are 0.292 moles and the number of molecules of sucrose are
`1.76 * 10^(23)`.