A student is working on a limiting reactant and percent yield problem, their work is shown below. They find out that the answer they wrote is incorrect, look over the work and find/highlight and explain the mistakes made; use a different colour for your notes.
13.5g H2SO4 reacts with 250mL of 0.76 M solution of NaOH, find the limiting reactant and percent yield of sodium sulfate if 10.5g is produced.
H2SO4 + 2 NaOH β 2 H2O + Na2SO4
13.5g H2SO4
98.09 mol H2SO4
1 mol Na2SO4
142.05 g Na2SO4
1 g H2SO4
1 mol H2SO4
1 mol Na2SO4
= 18,800 g Na2SO4
This is the limiting reactant
0.76 M = x / 250 = 190 mol
190 mol NaOH
1 mol Na2SO4
142.05 g Na2SO4
1 mol NaOH
1 mol Na2SO4
= 27, 000 g Na2SO4
This is the excess reactant
10.5 / 18800 * 100 = 0.056 %
Answers: 2
Chemistry, 21.06.2019 19:00
Agood hypothesis includes which of the following? a: prediction b: data c: uncertainty d: conclusion
Answers: 1
Chemistry, 22.06.2019 05:30
According to periodic trend, which of the following most likely has the highest ionization energy? kr be ni sc
Answers: 3
Chemistry, 22.06.2019 10:30
When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.
Answers: 2
Chemistry, 22.06.2019 22:30
3.09 lab: reaction of metals 1 which combinations of substances resulted in a chemical change? for each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. make a general statement about the reactivity of the metals in this experiment.
Answers: 1
A student is working on a limiting reactant and percent yield problem, their work is shown below. Th...
Mathematics, 09.04.2021 01:00
Health, 09.04.2021 01:00
Mathematics, 09.04.2021 01:00
English, 09.04.2021 01:00
Mathematics, 09.04.2021 01:00
Mathematics, 09.04.2021 01:00
Mathematics, 09.04.2021 01:00
English, 09.04.2021 01:00
Mathematics, 09.04.2021 01:00