a student weighed out 1.106g of KHP. How many moles was that?

This one requires the conversion of a mass of a chemical to moles of a chemical. This can be done using the molecular weight of KHP:

MW of KHP = 204.22 g/mol

You need to make a correct conversion factor, since you have your mass in grams:

1.106g KHP * 1 mol/204.22g KHP

= 0.005416 mol KHP or 5.416*10^(-3) mol KHP

Well, let's do some calculations, shall we? The molar mass of KHP (potassium hydrogen phthalate) is approximately 204.23 g/mol. So, to find the number of moles, we divide the weight of KHP by its molar mass.

1.106 g / 204.23 g/mol = 0.00541 moles.

So, there you have it! Approximately 0.00541 moles of KHP. Remember, though, these calculations are only accurate to a mole... Uh, I mean, a certain extent!

To determine the number of moles, you need to use the molar mass of the compound potassium hydrogen phthalate (KHP), also known as KHC8H4O4.

The molar mass of KHP is:
K (potassium) = 39.1 g/mol
H (hydrogen) = 1.0 g/mol
C (carbon) = 12.0 g/mol
O (oxygen) = 16.0 g/mol

Now, let's calculate the molar mass of KHP:
Molar mass = (1 * 39.1 g/mol) + (1 * 1.0 g/mol) + (8 * 12.0 g/mol) + (4 * 16.0 g/mol)
Molar mass = 39.1 g/mol + 1.0 g/mol + 96.0 g/mol + 64.0 g/mol
Molar mass = 200.1 g/mol

Next, we can calculate the number of moles using the formula:
Number of moles (n) = mass (m) / molar mass (M)

Substituting the given mass of 1.106 g and the molar mass of 200.1 g/mol:
n = 1.106 g / 200.1 g/mol

By performing the calculation:
n ≈ 0.0055 mol

Therefore, the number of moles of KHP in 1.106 g is approximately 0.0055 mol.

To determine the number of moles of KHP (potassium hydrogen phthalate), you need to use its molar mass and the given mass. Here are the steps to calculate the number of moles:

Step 1: Find the molar mass of KHP.
The molar mass is the sum of the atomic masses of each element in the compound. The chemical formula for KHP is C8H5KO4.

Atomic masses:
- Carbon (C): 12.01 g/mol
- Hydrogen (H): 1.01 g/mol
- Potassium (K): 39.10 g/mol
- Oxygen (O): 16.00 g/mol

Calculation:
(8 * C) + (5 * H) + K + (4 * O) = (8 * 12.01) + (5 * 1.01) + 39.10 + (4 * 16.00) = 204.23 g/mol

Therefore, the molar mass of KHP is 204.23 g/mol.

Step 2: Calculate the number of moles.
Use the formula: Moles = Mass / Molar Mass

Given: Mass = 1.106 g

Calculation:
Moles = 1.106 g / 204.23 g/mol

Dividing 1.106 g by 204.23 g/mol gives us approximately 0.0054 moles of KHP.

Therefore, the student weighed out approximately 0.0054 moles of KHP.