Chemistry, 12.11.2020 08:40 denisefaircloth73
Of all chlorine atoms, 75.771% are chlorine 35. Chlorine 35 atoms have a mass of 34.96855 amu. All other chlorine atoms are chlorine-37 with a mass of 36.96590. Calculate the average atomic mass of chlorine.
Answers: 2
Chemistry, 22.06.2019 05:00, adjjones2011
As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary
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What is the mass of each element in a 324.8 sample of co2
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Chemistry, 22.06.2019 11:40, Wemaybewrong
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Of all chlorine atoms, 75.771% are chlorine 35. Chlorine 35 atoms have a mass of 34.96855 amu. All o...
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