Answer:
The answer to your question is FeS₃
Explanation:
Data
mass of Fe = 3.78g
mass of S = 5.95 g
mass of FeS
Chemical Balanced Reaction
Fe + S ⇒ FeS
Process
1.- Convert the grams to moles
For Iron
55.85g of Fe -------------- 1 mol
3.78 g of Fe ----------- x
x = (3.78 x 1) / 55.85
x = 0.0677 moles
For Sulfur
32 g of S ------------------- 1 mol
5.95 g ------------------ x
x = (5.95 x 1)/32
x = 0.185 moles
2.- Divide by the lowest number of moles
Iron = 0.0677 /0.0677 = 1
Sulfur = 0.185 /0.0677 = 2.73 ≈ 3
3.- Write the empirical formula
FeS₃
Answer:
118.776 mmHg
Explanation:
The equation of the reaction is;
C4H10(g) + 13/2 O2(g) ------> 4CO2(g) + 5H20(g)
Now the mole ratio according to the balanced reaction equation is;
1 : 6.5 : 4 : 5
Hence, the total number of moles present = 1 + 6.5 + 4 + 5 = 16.5 moles
Mole fraction of water vapour = 5/16.5 = 0.303
We also know that;
Partial pressure= mole fraction * total pressure
Partial pressure of H20(g) = 0.303 * 392 mmHg = 118.776 mmHg
Answer:
Explanation:
because it is products / reactants
Hope this helps:)
Answer:
To find the volume of the gas. So if you have the amount of gas in moles. So the first step is to multiply the amount of moles that is 2.4 with liters to find the answer.
Explanation:
Answer:
Phenolphthalein is a chemical compound with the formula C20H14O4 and is often written as "HIn" or "phph" in shorthand notation. Phenolphthalein is often used as an indicator in acid–base titrations. For this application, it turns colorless in acidic solutions and pink in basic solutions.
