HELP URGENT!
2 answers:
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You'll need to react 7,5 moles of Sodium with sulfuric acid to produce 3.75 moles of sodium sulfate
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First of all, you need to balance the reaction. The balanced reaction is shown below (ensuring that the Law of Conservation of Mass is met on both sides):
2Na + H₂SO₄ → Na₂SO₄ + H₂
Now, all that you have to do is to use molar equivalences in this reaction applying the coefficients to calculate the moles of Sodium that you'll need:
Have a nice day!
<span>
You'll need to react 7,5 moles of Sodium with sulfuric acid to produce 3.75 moles of sodium sulfate
</span>
First of all, you need to balance the reaction. The balanced reaction is shown below (ensuring that the Law of Conservation of Mass is met on both sides):
2Na + H₂SO₄ → Na₂SO₄ + H₂
Now, all that you have to do is to use molar equivalences in this reaction applying the coefficients to calculate the moles of Sodium that you'll need:
Have a nice day!
Answer:
Step 1: The answer is option (b) NaOEt
Step 2: The answer is option (k) OH-, H2O, heat then H3O
Step 3: The answer is option (a) heat, -CO2
Step 4: na (no reagent)
Explanation:
See the attached file for the explanation.
Answer:
17.95 g
Explanation:
The electrolysis of CaBr₂ → Ca²⁺ + 2Br⁻
Ca₂⁺ + 2e⁻ → Ca
Recall that:
Charge (Q) = current (I) × time (t)
Q = 10.0 × 2.4 × 3600
Q = 86400 C
Number of moles of electron =
No of moles of Ca =
= 0.44775 moles
Mass of Ca = no of moles × molar mass of Ca
= 0.44775 mol × 40.08 g/mol
= 17.95 g