Please show the whole question including the diagram so that you can receive help with the question.
NH3 = 14 +3*1=17 g/mol
Mass = mol * molar mass = 0.687 * 17= 11.679 g
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The percentage of atoms in the universe that are hydrogen are 90%
Answer:
4800
Explanation:
using my Cal ex to solve the question
calculation goes like this
2*300*8=4800
In the combustion process using excess oxygen, each mole of methane results to 1 mole of co2 while ethane produces 2 moles of Co2. Under same conditions, these can be translated to volume. Hence the total volume absorbed is 10 cm3 + 20 cm3 = 30 cm3.
