Question

calculate no of moles in 250g of caco3​

Answer 1

Answer:

the answer is 2.5 moles

Explanation:

The formula to find moles is given mass/ molar mass

Hence the given mass is 250 gram and the molar mass of caco3 is 100g (ca=40,c=12,o=16×3=48)

Hence by dividing 250 by 100 the answer we get is 2.5 moles

Answer 2

Answer:

The number of moles are 2.5 mol.

Explanation:

The formula to find out moles is:

$moles = \frac{mass}{molar mass}$

We are given the mass of $CaCO_{3}$ - 250 g

We need to calculate the molar mass before finding the number of moles.

Molar mass =

$Ca = 40\\C = 12\\O = 3 * 16 = 48$

40 + 12 + 48 = 100

Now we can substitute the mass and molar mass in the mole formula.

$moles = \frac{250}{100} \\= 2.5 moles$