First, we calculate the number of moles of each reactant using the formula:
Moles = mass / molecular weight
CaO:
Moles = 7.15/56 = 0.128
Water:
Moles = 152/18 = 8.44
The reaction equation shows that the reactants must be present in an equal number of moles, so CaO will be the limiting reactant and 0.128 mole of calcium hydroxide will form.
The energy released is given by:
Heat of reaction * number of moles
= -64.8 * 0.128
= -8.29 kJ
8.29 kJ of energy will be released
Answer:
Partial pressure
Explanation:
the scientists is measuring different pressure, so it would be partial pressure. Hope that this helps you and have a great day :)
Someone added the answer already hope that helps you out
Since the pH of the substance is 5, the substance contains more of hydrogen ions.
<h3>What is pH of a solution?</h3>
The pH of a a solution is the negative logarithm to base ten of the hydrogen ions concentration of the solution.
![pH = -log[H^{+}]](https://tex.z-dn.net/?f=pH%20%3D%20-log%5BH%5E%7B%2B%7D%5D)
A neural solution has pH 7.
A solution with pH below 7 has more hydrogen ions while a solution with pH above 7 has more hydroxide ions.
The pH of a substance contains a hydrogen ion concentration of 1.0 x 10-5 M is 5.
Therefore, the substance contains more of hydrogen ions.
Learn more about pH at: brainly.com/question/940314