D baking soda and water because A B and C can all be separated while the baking soda will completely dissolve
Answer:
Theoretical yield: 13.9 g
Percent yield: 94 %
Explanation:
The reaction is:
CaCO₃ → CaO + CO₂
We see that the reaction is correctly balanced.
1 mol of calcium carbonate can decompose to 1 mol of calcium oxide and 1 mol of carbon dioxide.
We convert the mass to moles: 24.8 g . 1mol / 100.08g = 0.248 moles
As ratio is 1:1, 0.248 moles of salt can decompose to 1 mol of oxide.
We convert the moles to mass: 0.248 mol . 56.08g /1mol = 13.9 g
That's the theoretical yield.
To determine the percent yield we think:
(Determined yield / Theoretical yield) . 100 → (13.1 / 13.9) . 100 = 94 %
Answer:
a. C₄H₁₀/O₂ = 2:13 (example)
b. O₂/CO₂ = 13:8
c. O₂/H₂O = 13:10
d. C₄H₁₀/CO₂ = 2:8
e. C₄H₁₀/H₂O = 2:10
Explanation:
2C₄H₁₀ + 13O₂ ⟶ 8CO₂ + 10H₂O
The molar ratios are the same as the coefficients in front of the formulas.
Answer:
The correct choice is e. Two of the above.
Explanation:
Answer:
4g of NH₃
Explanation:
Hello,
To solve this question, we'll require the equation of reaction.
Equation of reaction
N₂ + 3H₂ → 2NH₃
From the equation of reaction, 1 mole of N₂ reacts with 3 moles of H₂ to produce 2 moles of NH₃.
Number moles = mass / molar mass
Molar mass of H = 1.0g/mol
Mass of H₂ = 2 ×1 = 2g
Molar mass of N₂ = 14.0g/mol
Mass = 2 × 14 = 28g
Molar mass of NH₃ = 17g/mol
Mass = 17g
Therefore, 28g of N₂ reacts with 6g of H₂ to produce 34g of NH₃
I.e 28g + 6g(N₂ + H₂) = 34g of NH₃
34g of (N2 + H2) = 34g of NH₃
4g of (N2 + H2) = x g of NH₃
x = (4 × 34) / 34
x = 4g of NH₃
4g of NH₃ will be produced from 1g of N2 and 3g of H2
