The conversion factor that is used to change mass to moles is?
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How many grams of water could be raised from 25 C (room temp) to 100 C (boiling point of H2O) by the amt of?
about 1 year ago - 1 comment
Ivory asked: energy released in the formation of 1 mol H2 from hydrogen atoms? The bond energy of H2 is 435 kJ/mol
The answer is 1400g
But i dont know how they got that. What formula or conversion factor are we sopposed to use. Im so confused. Please help Website content
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Chemistry Help! Grams to liters conversion?
about 2 years ago - 1 comment
so there is .7777 grams of hydrogen or h2 or .385 moles. it needs to be converted into liters.
At room temperature and pressure the volume of a mole of any gas is 24 liters.
Please help,
thanks
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Chemistry Question. combustion reactions?
about 2 years ago - 2 comments
ranadeshaun asked: A ________ is used to determine the composition of compounds containing the elements ______ and ______.
A) conversion factor; hydrogen; oxygen.
B) combustion apparatus; hydrogen; carbon
C) solvent; carbon; oxygen
D) solvent; hydrogen; carbon
E) combustion apparatus; carbon; oxygen
______________________________________________________
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A hydrogen fuel cell stack(terminal voltage 9V) has an internal resistance of 1 Ohms. It is connected to hydrogen and oxygen reservoirs. It is being charged using a battery of 11 V terminal voltage and 1 Ohms internal resistance. a. How many moles Hydrogen are produced per second? How long does one have to charge to store 10kJ in chemical energy (the energy content of hydrogen is 242 kJ/mol of Hydrogen)? b. What is the conversion efficiency from chemical energy in the battery into chemical energy of hydrogen? c. Now the fuel cell is used as a source to operate a device w/ 5 Ohms resistance. What is the power consumed by the device? What is the conversion efficiency from Hydrogen-chemical-energy into energy consumed by the device?
about 2 years ago - 1 comment
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How many grams of water could be raised from 25 C (room temp) to 100 C (boiling point of H2O) by the amt of?
about 2 years ago - 1 comment
Ivory asked: energy released in the formation of 1 mol H2 from hydrogen atoms? The bond energy of H2 is 435 kJ/mol
The answer is 1400g
But i dont know how they got that. What formula or conversion factor are we sopposed to use. Im so confused. Please help Caffeinated Content for WordPress
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