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tia_tia [17]
3 years ago
14

7. Lli(s) + N₂(g) → 2 Liz Ncs)

Chemistry
1 answer:
timurjin [86]3 years ago
8 0

The number of mole of lithium, Li needed for the reaction is 3.2 moles (Option D)

<h3>Balanced equation </h3>

4Li + N₂(g) → 2Li₂N

From the balanced equation above,

2 moles of Li₂N were obtained from 4 moles of Li

<h3>How to determine the mole of lithium needed </h3>

From the balanced equation above,

2 moles of Li₂N were obtained from 4 moles of Li

Therefore,

1.6 moles of Li₂N will be obtained from = (1.6 × 4) / 2 = 3.2 moles of Li

Thus, 3.2 moles of Li are needed for the reaction

Learn more about stoichiometry:

brainly.com/question/14735801

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How many molecules of nitrogen are in 1.25 mol N2?
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Answer:

7.52 x 10²³ molecules N

Explanation:

multiply 1.25 mol of N2 by Avogadro's Number

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What volume of a 6.67 M NaCl solution contains 3.12 mol NaCl? L
harkovskaia [24]

Answer:

0.47dm³

Explanation

Given parameters :

Molarity of NaCl = 6.67M

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4 years ago
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If 8.2 L of hydrogen gas at STP are produced in this<br> reaction, how many atoms of sodium react?
kati45 [8]

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2 moles of Na produces 1 mole of H2 from the equation reaction.

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5 0
3 years ago
a length of #8 copper wire (radius = 1.63 mm) has a mass of 24.0 Kg and a resistance of 2.061 Ohm per Km. What is the over all r
lubasha [3.4K]
V = m / ρ 
<span>V = (23,200/8.96) × 1000 </span>
<span>V = 2,589,285.71 mm³ </span>

<span>Now we have volume and given the radius we can solve for its length. </span>
<span>L = V/πr² </span>
<span>L = (2,589,285.71/(π×1.63²))/1×10^6 </span>
<span>L = 0.31 km </span>

<span>So </span>
<span>R = rL </span>
<span>R = 2.061(0.31) </span>
<span>R = .6389 Ω </span>

<span>End.</span>
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