At the beginning of the summer, the 70.0 m3 of water in a back-yard swimming pool...
At the beginning of the summer, the 70.0 m3 of water in a back-yard swimming pool must be heated from 0.195 oC to 26.4 oC. The heat is supplied from a natural gas fired heater and the efficiency of transferring the heat from the combustion reaction to the water is 65% What mass (in kg) of methane must be burned to cause this temperature change in the water? (The enthalpy of combustion of methane is -803 kJ mol-1.)
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At the beginning of the summer, the 70.0 m3 of water in a
back-yard swimming pool...
At the beginning of the summer, the 70.0 m3 of water in a back-yard swimming pool...
At the beginning of the summer, the 70.0 m3 of water in a back-yard swimming pool must be heated from 4.87 oC to 26.4 oC. The heat is supplied from a natural gas fired heater and the efficiency of transferring the heat from the combustion reaction to the water is 65%. The mass (in kg) of methane that must be burned to cause this temperature change in the water? (The enthalpy of combustion of methane is -803 kJ mol-1.) is...
1) One hundred (100) ml of a 1.00 M solution of HCl is diluted with water...
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1) One hundred (100) ml of a 1.00 M solution of HCl is diluted with water to prepare a 0.200 M solution. What is the volume of the resulting 0.200 M solution? Or asked another way, to what volume must the original solution be diluted? (3 points) 2) Lithium hydroxide, LiOH, is used in spacecraft to absorb the carbon dioxide exhaled by astronauts. Given 1.3 kg of LiOH, how many kg of CO2 can be absorbed? (10 Pts. The reaction...
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