Please show me how these problems are correctly solved:

15. The density of liquid water at 0 degrees C is 0.9987 g/cm cubed; the density of ice at this same temperature is 0.917 g/cm cubed.

a. Calculate the volume occupied at 0 degrees C by 100. g of liquid water and by 100. g of ice.

b. Calculate the percentage increase in volume when 100. g of water freezes at 0 degrees C.

19. Predict what will happen when each of these dilute solutions is tested for conductivity. Please explain to me why you made your predictions.

a. CaCI2 (aq)

b. C2H5OH (aq)

c. H2SO4 (aq)

23 b. A coal-burning power plant generates electrical power at a rate of 500 megawatts; that is, 500 X 10 to the 6th power pr 5.00 X 10 to the 8th power joules per second. The plant has an overall efficiency of 0.375 for the conversion of heat to electricity. Assuming the power plant burns coal that releases 30 kJ/g, calculate the mass of coal (in grams and metric tons) that will be burned in 1 year of operation (1 metric ton = 1 X 10 to the 3rd power kg = 1 X 10 to the 6th power g).

The answer is 1.40 X 10 to the 12th power g; 1.40 X 10 to the 6th power metric tons but please show me how to do the calculations so I will have a future reference.

Please show me how these problems are correctly solved:

15. The density of liquid water at 0 degrees C is 0.9987 g/cm cubed; the

density of ice at this same temperature is 0.917 g/cm cubed.

Calculate the volume occupied at 0 degrees C by 100. g of liquid water

and by 100. g of ice.

Calculate the percentage increase in volume when 100. g of water freezes

at 0 degrees C.

19. Predict what will happen when each of these dilute solutions is

tested for conductivity. Please explain to me why you made your

predictions.

CaCI2 (aq)

C2H5OH (aq)

H2SO4 (aq)

23 b. A coal-burning power plant generates electrical power at a rate of

500 megawatts; that is, 500 X 10 to the 6th power pr 5.00 X 10 to the

8th power joules per second. The plant has an overall efficiency of

0.375 for the conversion of heat to electricity. Assuming the power

plant burns coal that releases 30 kJ/g, calculate the mass of coal (in

grams and metric tons) that will be burned in 1 year of operation (1

metric ton = 1 X 10 to the 3rd power kg = 1 X 10 to the 6th power g).

The answer is 1.40 X 10 to the 12th power g; 1.40 X 10 to the 6th power

metric tons but please show me how to do the calculations so I will have

a future reference.

15. The density of liquid water at 0 degrees C is 0.9987 g/cm cubed; the density of ice at this same temperature is 0.917 g/cm cubed.

a. Calculate the volume occupied at 0 degrees C by 100. g of liquid water and by 100. g of ice.

b. Calculate the percentage increase in volume when 100. g of water freezes at 0 degrees C.

19. Predict what will happen when each of these dilute solutions is tested for conductivity. Please explain to me why you made your predictions.

a. CaCI2 (aq)

b. C2H5OH (aq)

c. H2SO4 (aq)

23 b. A coal-burning power plant generates electrical power at a rate of 500 megawatts; that is, 500 X 10 to the 6th power pr 5.00 X 10 to the 8th power joules per second. The plant has an overall efficiency of 0.375 for the conversion of heat to electricity. Assuming the power plant burns coal that releases 30 kJ/g, calculate the mass of coal (in grams and metric tons) that will be burned in 1 year of operation (1 metric ton = 1 X 10 to the 3rd power kg = 1 X 10 to the 6th power g).

The answer is 1.40 X 10 to the 12th power g; 1.40 X 10 to the 6th power metric tons but please show me how to do the calculations so I will have a future reference.

Please show me how these problems are correctly solved:

15. The density of liquid water at 0 degrees C is 0.9987 g/cm cubed; the

density of ice at this same temperature is 0.917 g/cm cubed.

Calculate the volume occupied at 0 degrees C by 100. g of liquid water

and by 100. g of ice.

Calculate the percentage increase in volume when 100. g of water freezes

at 0 degrees C.

19. Predict what will happen when each of these dilute solutions is

tested for conductivity. Please explain to me why you made your

predictions.

CaCI2 (aq)

C2H5OH (aq)

H2SO4 (aq)

23 b. A coal-burning power plant generates electrical power at a rate of

500 megawatts; that is, 500 X 10 to the 6th power pr 5.00 X 10 to the

8th power joules per second. The plant has an overall efficiency of

0.375 for the conversion of heat to electricity. Assuming the power

plant burns coal that releases 30 kJ/g, calculate the mass of coal (in

grams and metric tons) that will be burned in 1 year of operation (1

metric ton = 1 X 10 to the 3rd power kg = 1 X 10 to the 6th power g).

The answer is 1.40 X 10 to the 12th power g; 1.40 X 10 to the 6th power

metric tons but please show me how to do the calculations so I will have

a future reference.

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