Answer:
23430.4 J.
Explanation:
From the question given above, the following data were obtained:
Mass (M) = 70 g
Initial temperature (T₁) = 10 °C
Final temperature (T₂) = 90 °C
Specific heat capacity (C) = 4.184 J/gºC
Heat (Q) required =?
Next, we shall determine the change in the temperature of water. This can be obtained as follow:
Initial temperature (T₁) = 10 °C
Final temperature (T₂) = 90 °C
Change in temperature (ΔT) =?
ΔT = T₂ – T₁
ΔT = 90 – 10
ΔT = 80 °C
Finally, we shall determine the heat energy required to heat up the water. This can be obtained as follow:
Mass (M) = 70 g
Change in temperature (ΔT) = 80 °C
Specific heat capacity (C) = 4.184 J/gºC
Heat (Q) required =?
Q = MCΔT
Q = 70 × 4.184 × 80
Q = 23430.4 J
Therefore, 23430.4 J of heat energy is required to heat up the water.
The salt contains ionic bond so that it dissociate ultimately by the movement of ion electricity is conducted
Answer:
The answer is
<h2>6.54 mL</h2>
Explanation:
The volume of a substance when given the density and mass can be found by using the formula

From the question
mass of ball = 8.5 g
density = 1.3 g/mL
It's volume is

We have the final answer as
<h3>6.54 mL</h3>
Hope this helps you
Answer:
Explanation:
I want to believe that your question is how to find an 8M carbon chloride solution using the given mass of the compound.
The problem clearly identifies with concentration of a substance. Molarity is one of the ways of expressing concentration. It is the amount of solute of a substance per volume of solution.
Molarity = 
To find the right mix that will give us 8M carbon chloride solution, let's explore how to figure out the appropriate volume.
Clearly given is the mass of the compound, convert to number of moles.
Number of moles = 
Molar mass of carbon chloride(CCl₄) = 12 + 4(35.5) = 154g/mol
Number of moles =
= 0.57moles
To find the volume;
8 = 
volume = 0.071L or 71mL