Chemistry, 14.12.2019 07:31, Laylahlettiere
Astudent following the procedure described in this module collected
the follwing data:
1. mass mg, m= 0.0243, initial syringe volume, ml=1.0, final syringe
volume, ml= 26.5, barometric pressure, torr= 754, temperature, k= 298.
calculate the gas law constant. r=pv/nt find the r value
2. what would be the volume gas produced by the reaction of .243g of
magnesium metal and collected at 750 torr and 298k? use the value r in
the previous problem.
3. what would be the effect on the results of mistakenly adding 2.43 x 10^-3g mg to 4.0ml of 0.1m hcl, rather than to 4.0ml of 1.0m hcl as instructed?
Answers: 3
Chemistry, 22.06.2019 12:10, yootmytoot
Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution. calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.
Answers: 1
Chemistry, 22.06.2019 14:30, srutkowske1489
Is a pencil falling to the floor anon contact force, a force, or a contact force
Answers: 1
Chemistry, 22.06.2019 23:30, jade468
Substance a is a nonpolar liquid and has only dispersion forces among its constituent particles. substance b is also a nonpolar liquid and has about the same magnitude of dispersion forces among its constituent particles. when substance a and b are combined, they spontaneously mix.
Answers: 1
Chemistry, 23.06.2019 08:00, 91miketaylor
Why is it important for scientists to review and repeat the work of other scientists? 1.a scientific theory must be tested three times before it is proven. 2.the scientific method only applies to repeated experiments. 3.an experiment may have had errors that the scientists didn't recognize. 4.the results of individual scientists may be influenced by bias. 5.an experiment must be performed twice before the data can be analyzed.
Answers: 3
Astudent following the procedure described in this module collected
the follwing data:
<...
the follwing data:
<...
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