Answer:
2/6
Explanation:
In a balanced chemical equation as:
aA + bB → cC + dD
Where coefficients of reaction relates the number of moles of substances that are involved in the reaction. In the reaction:
Mg₃N₂(s) + 6H₂O(l) → 3Mg(OH)₂(s) + 2NH₃(g)
Per mole of Mg₃N₂(s) and per 6 moles of H₂O you will produce 3 moles of Mg(OH)₂(s) and 2 moles of NH₃(g).
To convert moles of H₂O to moles of NH₃ you can use:
X moles of H₂O ₓ (2 moles NH₃ / 6 moles of H₂O)
That means conversion factor to convert the number of moles of water to number of moles of ammonia is <em>2/6</em>.
<em>-It is important to say that obtention of conversion factor requires, in the first, the balanced chemical equation-</em>
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I hope it helps!
Answer:
The enthalpy change during the reaction is -7020.09 kJ/mole.
Explanation:
First we have to calculate the heat gained by the calorimeter.
where,
q = heat gained = ?
c = specific heat =
= final temperature =
= initial temperature =
Now put all the given values in the above formula, we get:
The heat gained by water present in calorimeter. = q'
where,
q' = heat gained = ?
m = mass of water =
c' = specific heat of water =
= final temperature =
= initial temperature =
q ' = 12,060.38 J
Now we have to calculate the enthalpy change during the reaction.
where,
= enthalpy change = ?
Q = heat gained = -(q+q') = -(2,485.25 J + 12,060.38 J)= -14,545.63 J
Q = -14.54563 kJ
n = number of moles fructose =
Therefore, the enthalpy change during the reaction is -7020.09 kJ/mole.
Answer:
The temperature changes. Think of taking a cup of ice out by the pool in on a hot summer day. The ice begins to melt. The sun was changing its previous temperature. If it stayed the same, the now puddle of water would remain ice.
Answer:
part b:
Sodium bicarbonate is a white, crystalline powder that sometimes forms lumps. It is odorless and has a bitter, salty taste. At room temperature, it is a solid. Solubility, or the ability of a substance to dissolve in water, is also a physical property. Sodium bicarbonate is soluble in water and can be separated from water through evaporation.
Explanation: