how many moles of sugar are contained in a 10-lb bag of sugar if sugar has formula C12H22O11? first convert the pounds into grams, then grams into moles.
And just what is your problem? You seem to know what to do.
There ae 453.59 g in 1 lb.
Then mols = grams/molar mass
To determine the number of moles of sugar in a 10-lb bag, we need to follow these steps:
1. Convert pounds to grams: We know that 1 lb is equal to 453.592 grams. So, a 10-lb bag of sugar is equal to 10 * 453.592 grams.
10 lb * 453.592 g/lb = 4535.92 grams
Therefore, a 10-lb bag of sugar is equal to 4535.92 grams.
2. Calculate the molar mass of the sugar: The molar mass of a compound is the sum of the atomic masses of all its atoms. In this case, we have the molecular formula C12H22O11. To calculate the molar mass, we need the atomic masses of carbon (C), hydrogen (H), and oxygen (O). The atomic masses are as follows:
Atomic mass of C = 12.01 g/mol
Atomic mass of H = 1.008 g/mol
Atomic mass of O = 16.00 g/mol
We can calculate the molar mass of C12H22O11 as follows:
(12 * 12.01 g/mol) + (22 * 1.008 g/mol) + (11 * 16.00 g/mol) = 342.30 g/mol
Therefore, the molar mass of C12H22O11 is 342.30 g/mol.
3. Convert grams to moles: To convert grams of a substance to moles, divide the given mass by the molar mass of that substance. In this case, we will divide the mass of the 10-lb bag (4535.92 grams) by the molar mass of sugar (342.30 g/mol) to find the number of moles.
Moles of sugar = 4535.92 g / 342.30 g/mol
Moles of sugar ≈ 13.25 mol
Therefore, there are approximately 13.25 moles of sugar in a 10-lb bag of sugar.