Answer:

Explanation:
2C₄H₁₀ + 13O₂ ⟶ 8CO₂ + 10H₂O
n/mol: 4.3
13 mol of O₂ react with 2 mol of 2C₄H₁₀

in order for a scientific theory to become a scientific law it needs to be tested with generations of data to confirm that it is really true.
Concentration of the reactant,pressure,surface
area of the reactant and temperatur
Answer:
0.60 moles of Na₂SO₄
Explanation:
Molarity is an unit of concentration defined as the ratio between moles of solute and liters of solution.
A solution of Na₂SO₄ 0.40M contains 0.40 moles of solute (Na₂SO₄) per liter of solution.
As you have 1.5L of solution, moles of Na₂SO₄:
1.5L × (0.40mol / L) = <em>0.60 moles of Na₂SO₄</em>
Answer:
Molality = 1.13 m
Explanation:
Molality is defined as the moles of the solute present in 1 kilogram of the solvent.
Given that:
Mass of
= 26.5 g
Molar mass of
= 32.04 g/mol
The formula for the calculation of moles is shown below:
Thus,

Mass of water = 735 g = 0.735 kg ( 1 g = 0.001 kg )
So, molality is:

<u>Molality = 1.13 m</u>