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san4es73 [151]
2 years ago
15

2 A + 4 B → 2 C How many mol of B must react with excess A to produce 2 mol of C?

Chemistry
1 answer:
asambeis [7]2 years ago
8 0

Answer:

4 mol B

Explanation:

Step 1: Write the balanced generic equation

2 A + 4 B → 2 C

Step 2: Establish the appropriate molar ratio

According to the balanced equation, the molar ratio of B to C is 4:2.

Step 3: Calculate the moles of B needed to produce 2 moles of C

2 mol C × 4 mol B/2 mol C = 4 mol B

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The corrent answer will be b mass :)
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X(g)+4Y(g)→2Z(g), ΔH∘=−75.0 kJ Before the reaction, the volume of the gaseous mixture was 5.00 L. After the reaction, the volume
vlabodo [156]

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1. Leigh is preparing popcorn for her friends. She removes a stick of butter from the refrigerator and cuts a fourth of it from
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What is the mass of 3.77mol of K3N?
AleksAgata [21]
<h3>Answer:</h3>

495 g K₃N

<h3>General Formulas and Concepts:</h3>

<u>Math</u>

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Chemistry</u>

<u>Atomic Structure</u>

  • Reading a Periodic Table

<u>Stoichiometry</u>

  • Using Dimensional Analysis
<h3>Explanation:</h3>

<u>Step 1: Define</u>

3.77 mol K₃N

<u>Step 2: Identify Conversions</u>

Molar Mass of K - 39.10 g/mol

Molar Mass of N - 14.01 g/mol

Molar Mass of K₃N - 3(39.10) + 14.01 = 131.31 g/mol

<u>Step 3: Convert</u>

  1. Set up:                       \displaystyle 3.77 \ mol \ K_3N(\frac{131.31 \ g \ K_3N}{1 \ mol \ K_3N})
  2. Multiply/Divide:         \displaystyle 495.039 \ g \ K_3N

<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

495.039 g K₃N ≈ 495 g K₃N

5 0
3 years ago
What is the mass of 0.46 mol of MgCl2
Ronch [10]

Answer:

43.7

Explanation:

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