Chemistry, 09.01.2020 10:31 cyberdac01
Asample of gold (au) has a mass of 72.04 g.
a) calculate the number of moles of gold (au) in the sample. show your work and highlight your final answer.
calculation:
b) a sample of gold (au) has a mass of 72.04g. calculate the number of atoms of gold (au) in the sample. (use your answer from part a.) show your work and highlight your final answer.
calculation:
question 2 a sample of sodium chloride (nacl) has a mass of 16.55 g.
a) calculate the number of moles of nacl in the sample. show your work and highlight your final answer.
calculation
b) a sample of nacl (sodium chloride) has a mass of 16.55g. calculate the number of moles of na (sodium). calculate the number of moles of cl (chlorine). (hint; you can use your answer from part a as your starting point.) show your work and highlight your final answer.
calculation
c) a sample of nacl (sodium chloride) has a mass of 16.55g. calculate the number of atoms of na (sodium). calculate the number of atoms of cl (chlorine). (hint; you can use your answer from part b as your starting point.) show your work and highlight your final answer.
calculation:
question 3 a sample of table sugar (sucrose, c12h22o11) has a mass of 5.432 g.
a) calculate the number of moles of c12h22o11 in the sample. show your work and highlight your final answer.
calculation
b) a sample of table sugar (sucrose, c12h22o11) has a mass of 5.432 g. calculate the number of moles carbon. calculate the number of moles hydrogen. calculate the number of moles oxygen. (hint: you can use your answer from part a as your starting point.) show your work and highlight your final answer.
calculation
c) a sample of table sugar (sucrose, c12h22o11) has a mass of 5.432 g. calculate the number of atoms carbon. calculate the number of atoms hydrogen. calculate the number of atoms oxygen. (hint: you can use your answer from part b as your starting point.) show your work and highlight your final answer.
calculation
Answers: 1
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Asample of gold (au) has a mass of 72.04 g.
a) calculate the number of moles of gold (a...
a) calculate the number of moles of gold (a...
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