of iron bar changes the temperature to 77.2°C. Find the heat change.

2.Can you help me solve this

A 0.2415 g sample of solid magnesium is burned in a constant-volume bomb calorimeter that has a heat capacity of 3024 The temperature increases by 1.978 °C. Part 1 of 2 kJ Calculate the heat associated with the burning of Mg in Be sure your answer has the correct number of significant digits. g Part 2 of 2 kJ g ☐ x10 ☑ Calculate the heat associated with the burning of Mg in kJ mol Be sure your answer has the correct number of significant digits. KJ mol x10 ☑

A chemistry student dissolved 4.51 g of sodium hydroxide in 100.0 mL of water at 19.5 ºC (in a calorimeter cup). As the sodium hydroxide dissolves, the temperature of the surrounding water increases to 31.7 ºC. Determine the heat of solution of the sodium hydroxide in J/g. Specific heat of water = 4.184 J/g•ºC Select one: a.– 1182 J/g b.+1132 J/g c.+1180 J/g d.– 1132 J/g

You are given 50g of an unknown metal.  You apply 6000J of energy to the metal, raising its temperature from 25°C to 955°C.  What is the specific heat of the metal? ______ J/g°C    After calculating the specific heat in J/g°C,  What is the identity of the metal?   Metal Specific Heat (J/g°C) Metal Specific Heat (J/g°C) Magnesium 1.02 Silver 0.24 Aluminum 0.90 Tin 0.21 Potassium 0.75 Lead 0.16 Calcium 0.65 Gold 0.129

How much heat is needed to raise the temperature of 13.0g of iron from 19.00C to 100.00C the specific heat of iron is 24.80J/mol c

In the laboratory a student finds that it takes 139 Joules to increase the temperature of 13.0 grams of solid silicon from 23.1 to 39.5 degrees Celsius.The specific heat of silicon calculated from her data is _______J/g°C.

How much heat is required to warm a 4.1 lb Pyrex baking dish from 22 degrees C to 191 degrees C?

In the laboratory a student finds that it takes 35.9 Joules to increase the temperature of 11.7 grams of solid silver from 23.8 to 37.8 degrees Celsius.The specific heat of silver calculated from her data is _______ J/g°C.