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pantera1 [17]
4 years ago
12

1 mole of CH4 contains ________molecules

Chemistry
1 answer:
laila [671]4 years ago
7 0

1 mole contains 6.023 *10^23 molecules

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As Nicole walks to her dorm room after a study group in the library she sees a backpack being stolen. The neurotransmitter activated during this emergency situation is a. norepinephrine.

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What mass of hydrogen chloride is formed when 1 mole of hydrogen reacts with 1 mole of chlorine?
Vadim26 [7]
The balanced reaction that describes the reaction between hydrogen and chlorine to produce hydrogen chloride is expressed H2 + Cl2 = 2HCl. Hence for every mole hydrogen chloride produced, there is 1 mole of hydrogen and chlorine needed. When 1 mole each of the reactants are used, there is 72.9 grams of HCl produced. We multiply 2 with the molar mass of HCl. 
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4 years ago
If you have 210.3 grams of an unknown compound that contains 12.3 grams of hydrogen (H), what is the percent by mass of hydrogen
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Hope this will help
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