How do you convert 212.26 grams of potassium phosphate to moles?
1 answer:
Answer: 1 mol of potassium phosphate.
Explanation:
Find the molar mass of potassium phosphate.
Equation of potassium phosphate = K3PO4
The molar mass of K = 39.10 g/mol, P = 30.97 g/mol, O = 16.00 g/mol (use periodic table for these values).
Then add them up together based off of the equation.
3(39.10 g/mol) + 30.97 g/mol + 4(16.00 g/mol) = 212.27 g/mol
Multiply the 212.26 grams by the molar mass (unit conversion method).
= 1.00 mol
There is 1 mol of potassium phosphate.
You might be interested in
Answer:
194.6 mL of SO₂
Explanation:
The reaction that takes place is:
P₄S₃ + 6O₂(g) → P₄O₁₀ + 3SO₂(g)
<u>To solve this problem we need to use PV=nRT</u>, so first let's convert the given units:
- 23.8 °C → 23.8 + 273.15 = 296.95 K
- 747 torr → 747/760 = 0.983 atm
We need to calculate V, so in order to do that we calculate n, using the mass of the reactant (P₄S₃):
0.576 g P₄S₃ * = 7.85 * 10⁻³ mol SO₂ = n
- Now we calculate V:
PV=nRT
0.983 atm * V = 7.85 * 10⁻³ mol * 0.082 atm·L·mol⁻¹·K⁻¹ * 296.95 K
V = 0.1946 L
- Finally we convert L into mL:
0.1946 * 1000 = 194.6 mL