I’m not sure but I think it’s Earthquake Detector
For the purpose we will use solution dilution equation:
c1V1=c2V2
Where, c1 - concentration of stock solution; V1 - volume of stock solution needed to make the new solution; c2 - final concentration of new solution; V2 - final volume of new solution.
c1 = 100%
c2 = 75%
V1 = 1 gal
V2 = ?
When we plug values into the equation, we get following:
100 x 1 = 75 x V2
V2= 100/75 = 1.33 gal
Now we can determine the necessary volume of water:
V(water)= V2 - V1 = 1.33 - 1 = 0.33 gal water should be added
65 miles Because half of 50 is 25 + 40 = 65
Answer:
2.0 J/g°C
Explanation:
We are given;
- Quantity of heat as 10.0 kJ
- Mass of the substance as 100 g
- Temperature change is 50°C
We are required to calculate the specific heat capacity of the substance;
- We need to know that the quantity of heat gained by a substance is given by;
Quantity of heat = Mass × specific heat × change in temperature
That is;
Q = mcΔT
Rearranging the formula;
c = Q ÷ mΔT
Therefore;
c = 10000 J ÷ (100.0 g × 50°C)
= 2.0 J/g°C
Thus, the specific heat of the substance is 2.0 J/g°C