You have a pure (24-karat) gold ring with mass 19.1 g . Gold has an atomic mass

Q: You have a pure (24-karat) gold ring with mass 19.1 g . Gold has an atomic mass

a) Number of protons N=(6.02*1023)(19.1/197)(79) N=4.61*1024 protons b) Total Charge Q=(4.61*1024)(1.6*10-19) Q=7.38*105 C c) N=4.61*1024 electrons

ID: 2285799 • Letter: Y

Question

You have a pure (24-karat) gold ring with mass 19.1g . Gold has an atomic mass of 197g/mol and an atomic number of 79. Part A How many protons are in the ring? np = protons
Part B What is their total positive charge? Q =   C   Part C If the ring carries no net charge, how many electrons are in it? ne = electrons You have a pure (24-karat) gold ring with mass 19.1g . Gold has an atomic mass of 197g/mol and an atomic number of 79. Part A How many protons are in the ring? np = protons
Part B What is their total positive charge? Q =   C   Part C If the ring carries no net charge, how many electrons are in it? ne = electrons You have a pure (24-karat) gold ring with mass 19.1g . Gold has an atomic mass of 197g/mol and an atomic number of 79. You have a pure (24-karat) gold ring with mass 19.1g . Gold has an atomic mass of 197g/mol and an atomic number of 79. You have a pure (24-karat) gold ring with mass 19.1g . Gold has an atomic mass of 197g/mol and an atomic number of 79. Part A How many protons are in the ring? np = protons
Part B What is their total positive charge? Q =   C   Part C If the ring carries no net charge, how many electrons are in it? ne = electrons Part A How many protons are in the ring? np = protons
Part A How many protons are in the ring? np = protons
np = protons np = protons
Part B What is their total positive charge? Q =   C   Part B What is their total positive charge? Q =   C   Q =   C   Q =   C   Part C If the ring carries no net charge, how many electrons are in it? ne = electrons Part C If the ring carries no net charge, how many electrons are in it? ne = electrons ne = electrons ne = electrons np = protons

Explanation / Answer

Number of protons

N=(6.02*1023)(19.1/197)(79)

N=4.61*1024 protons

Total Charge

Q=(4.61*1024)(1.6*10-19)

Q=7.38*105 C

N=4.61*1024 electrons

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You have a pure (24-karat) gold ring with mass 19.1 g . Gold has an atomic mass

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