A solution with pH of 8 and above is basic so definitely OH-
The heat lost by copper(ii) sulfate is equal to heat absorbed by water since the total energy in the system remains constant according to the law of conservation of energy.
<h3>How can the number of moles be determined?</h3>
The number of moles of a substance is determined using the formula below:
- Number of moles = mass/molar mass
Assuming the mass of copper(ii) sulfate used is <em>Mc</em>, number of moles of copper(ii) sulfate used is:
- Moles of copper(ii) sulfate = <em>Mc</em>/159.60 moles
The heat absorbed by water is calculated using the formula below:
- Quantity of Heat, H = mass × specific heat capacity × temperature change
mass of water <em>=</em><em> </em> 10 g
Let temperature change be <em>Tc</em>
Heat<em> </em>absorbed<em> </em>by water = 10 × 4.186 × Tc = 41
86Tc
The change in internal energy, ΔU of copper(ii) sulfate, is given as:
where:
Q = heat absorbed by water
W = work done by or on the system
The enthalpy of the reaction is given as:
- ΔH= energy released or absorbed/moles of copper (ii) sulfate
Therefore, according to the law of conservation of energy, the total energy in the system remains constant.
Learn more about internal energy change at: brainly.com/question/14126477
<span>The quadratic equation for the given solution would be
(x−√3+2i√5)(x−√3−2i√5)
if you will expand it further you will get
</span><span>x^2+x+5
and that will lead to the solution.
</span>
Answer:
7L
Explanation:
Divide 101 by 10.1(kPa) and you get 10.
10 x .7 = 7
Answer:
The kinetic-molecular theory explains why gases are more compressible than either liquids or solids. Gases are compressible because most of the volume of a gas is composed of the large amounts of empty space between the gas particles. Compressed gases are used in many situations.
Explanation:
