A chemist measures the amount of nitrogen produced moles of nitrogen gas produced. Round your answer...
A chemist carefully measures the amount of heat needed to raise the temperature of a 124.0 mg sample of CH4F2 from – 8.4 °C to 9.4 °C. The experiment shows that 2.96 J of heat are needed. What can the chemist report for the molar heat capacity of C H F,? Round your answer to 3 significant digits. J. mol-?.K-1 x 6 ?
A chemist carefully measures the amount of heat needed to raise the temperature of a 449.0 mg sample of C,H,O, from 20.9 "C to 34.3 °C. The experiment shows that 10.3 J of heat are needed. What can the chemist report for the molar heat capacity of C,H,O,? Round your answer to 3 significant digits 0.P mol -K ? X
A chemist determines by measurements that 0.0200 moles of fluorine gas participate in a chemical reaction. Calculate the mass of fluorine gas that participates. Round your answer to 3 significant digits. 09 X 5 ?
THERMOCHEMISTRY Calculating molar heat capacity A chemist carefully measures the amount of heat needed to raise the temperature of a 762.0 mg sample of CHF, from 0.8 °C to 14.2 "C. The experiment shows that 14.8 J of heat are needed. What can the chemist report for the molar heat capacity of CHF,? Round your answer to 3 significant digits. mol. x ? Explanation Check
Ammonia will decompose into nitrogen and hydrogen at high temperature. An industrial chemist studying this reaction fills a 5.0 L flask with 1.3 atm of ammonia gas at 46. °C . He then raises the temperature, and when the mixture has come to equilibrium measures the amount of nitrogen gas to be 0.39 atm . Calculate the pressure equilibrium constant for the decomposition of ammonia at the final temperature of the mixture. Round your answer to 2 significant digits. kp=_______
A chemist carefully measures the amount of heat needed to raise the temperature of a 0.32 kg sample of CHN from -4.2 °C to 9.4 °C. The experiment shows that 1.15 10 of heat are needed. What can the chemist report for the molar heat capacity of C, H,N? Round your answer to 2 significant digits. 1 mol K
Ammonia will decompose into nitrogen and hydrogen at high temperature. An industrial chemist studying this reaction fills a 5.0 L flask with 1.3 atm of ammonia gas at 46. °C . He then raises the temperature, and when the mixture has come to equilibrium measures the amount of nitrogen gas to be 0.39 atm . Calculate the pressure equilibrium constant for the decomposition of ammonia at the final temperature of the mixture. Round your answer to 2 significant digits. kp=_______
Gaseous ammonia chemically reacts with oxygen O, gas to produce nitrogen monoxide gas and water vapor. Calculate the moles of water produced by the reaction of 2.10 mol of oxygen. Be sure your answer has a unit symbol, if necessary, and round it to 3 significant digits.
A chemist carefully measures the amount of heat needed to raise the temperature of a 816,0 sample of a pure substance from 41.1 °C to 59.0 °C. The experiment shows that 68.7 kJ of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 3 significant digits. 1. 8K X ?
A chemist carefully measures the amount of heat needed to raise the temperature of a 1.07 kg sample of a pure substance from 1.0 °C to 110 °C. The experiment shows that 26.1 kJ of heat are needed. What can the chemist report for the specific heat capacity of the substance? Round your answer to 3 significant digits. JEK x 6 ?