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 13:50, amandamac7339
Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.
Answers: 1
Chemistry, 22.06.2019 19:10, krisandlance
Astudent completes a titration by adding 12.0 milliliters of naoh(aq) of unknown concentration to 16.0 milliliters of 0.15 m hcl(aq). what is the molar concentration of the naoh(aq)? 1)5.0 m 2)0.20 m 3)0.11 m 4)1.1 m
Answers: 1
Chemistry, 23.06.2019 04:00, Tiredd7838
Which of these are physical changes in matter? check all that apply boiling water a pencil being sharpened exploding dynamite freezing water rotting cheese
Answers: 1
Astudent following the procedure described in this module collected
the follwing data:
<...
the follwing data:
<...
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