C The Average Adult Human Burr x b Search results for 'Convert 3.2 x app.101edu.co mail YouTube Maps 1o Chem101 Update 国 Reading Question 3 of 23 Sub The average adult human burns 2.00 x 10 kcal per day in energy. What is this rate in kJ per hour ? MOUNT ADD FACTOR ANSWER RESET *( ) 60 4184 2.01 x 106 4.184 1.15 x 105 1 24 0.001 20.0 349 2.00 x 10 1000 kcal/day days kJ cal kJ/hr hr min kcal

A metal sample weighing 122.50 grams and at a temperature of 97.0 degrees Celsius was placed in 49.50 grams of water in a calorimeter at 21.2 degrees Celsius. At equilibrium the temperature of the water and metal was 36.6 degrees Celsius.  How much heat flowed into the water? (Report your answer in J) The specific heat of the water is 4.184 J/g/C Report your answer to three significant figures. The value should be positive. DO NOT USE EXPONENTIAL NOTATION

A Sapling Learning Metal: Gold -- °C Au 0.0000 g Add water to the cup and heat a block of metal. Use the balance to measure the mass and the thermometer to measure the temperature. Click Reset to start over. V Help Reset O Use the interactive to determine the specific heat of the mystery metal. The specific heat of water is 4.184 J/g - °C. (J/g - °C) The specific hcats of several metals are given in the table. Metal Specific heat (J/g - °C) palladium 0.239 lead 0.130 zinc 0.388 aluminum 0.897 nickel 0.444 Based on the calculated specific heat, what is the identity of the mystery metal? palladium O aluminum lead O nickel O zinc O 0 O O

Suppose that 142 mL of water changes in temperature from 55.39°C to 58.68°C. What is qrxn in kJ? (Assume that the density of water is 1.0 g/mL and that the heat capacity of water is 4.2 J/(g-°C). Report your answer to three decimal places and ignore significant figures.)

Hello, I need assistance with solving the following General Chemistry questions. Two questions, both in attachment form. Thank you.

please help with the following!

Specific Heat Metal (J/g°C) Calcium 0.647 Iron 0.449 Silver 0.235 Gold 0.129 In joules, how much heat is released when 37.0 g of Ag cools from 181. to 126.? Answer: - J (enter a positive value)

A certain mass of substance 10 releases 3.19 kJ of energy.  If the initial temperature was 91.8  and the final temperature was 20.1 , what is the mass of substance 10 used?  Record your answer to three decimals.

The energy needed to keep a 75-watt lightbulb burning for 1.0h is 270kJ. Calculate the energy required to keep the lightbulb for 5.0h in each of the following energy units. joules Express your answer using two significant figures E= ? J kilocalories Express your answer using two significant figures E= ? kcal

A 1.13 g sample of metal at 25.64°C, with heat capacity 2.63 , is heated with 51.18 J of energy. What is the final temperature of the metal? Please express your answer to the second decimal place Type your answer.