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labwork [276]
2 years ago
15

How many joules are in 148 calories? (1 cal = 4. 18 j).

SAT
1 answer:
raketka [301]2 years ago
5 0

Answer:

618.64 j

Explanation:

148 calories = 148*4.18 j = 618.64j

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When 2. 0 m aqueous solutions of sodium bicarbonate and hydrochloric acid react, it produces carbon dioxide, water and sodium ch
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The number of mole of carbon dioxide, CO₂ formed from the reaction is 0.0632 mole.

<h3>How to determine the mole of NaHCO₃</h3>
  • Molarity of NaHCO₃ = 2 M
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Mole of NaHCO₃ = 0.0632 mole

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NaHCO₃ + HCl —> CO₂ + H₂O + NaCl

From the balanced equation above,

1 mole of NaHCO₃ reacted to produce 1 mole of CO₂.

Therefore,

0.0632 mole of NaHCO₃ will also react to produce 0.0632 mole of CO₂.

Thus, 0.0632 mole of CO₂ was obtained from the reaction

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