A 3.24-gram sample of NaHCO3 was completely decomposed in an experiment.
2NaHCO3 β Na2CO3 + H2...
Chemistry, 09.06.2020 21:57 lareynademividp0a99r
A 3.24-gram sample of NaHCO3 was completely decomposed in an experiment.
2NaHCO3 β Na2CO3 + H2CO3
In this experiment, carbon dioxide and water vapors combine to form H2CO3. After decomposition, the Na2CO3 had a mass of 2.19 grams.
1) Determine the mass of the H2CO3 produced.
2) Calculate the percentage yield of H2CO3 for the reaction. Show your work or describe the calculation process in detail.
Answers: 3
Chemistry, 22.06.2019 03:30
If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?
Answers: 1
Chemistry, 22.06.2019 14:00
The content of manganese (mn) in steel was determined spectrophotometrically and with the use of the standard addition method. an unknown sample of mn from a digested steel sample gave an absorbance of 0.185 when analyzed spectrophotometrically. when 5.00 ml of solution containing 95.5 ppm mn was added to 50.0 ml of the unknown steel solution (digested sample), the absorbance was 0.248. calculate the concentration, in parts-per-million (ppm), of mn in the digested steel sample solution.
Answers: 3
Chemistry, 22.06.2019 14:30
Consider the reduction reactions and their equilibrium constants. cu+(aq)+eββ½βββcu(s)pb2+(aq)+2eββ½βββpb(s)fe3+(aq)+3eββ½βββfe(=6.2Γ108=4.0Γ10β5=9.3Γ10β3 cu + ( aq ) + e β β½ β β β cu ( s ) k =6.2Γ 10 8 pb 2 + ( aq ) +2 e β β½ β β β pb ( s ) k =4.0Γ 10 β 5 fe 3 + ( aq ) +3 e β β½ β β β fe ( s ) k =9.3Γ 10 β 3 arrange these ions from strongest to weakest oxidizing agent.
Answers: 3
Chemistry, 22.06.2019 14:30
Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false
Answers: 1
Chemistry, 18.02.2021 19:30
Advanced Placement (AP), 18.02.2021 19:30
English, 18.02.2021 19:30
Mathematics, 18.02.2021 19:30
Mathematics, 18.02.2021 19:30
Mathematics, 18.02.2021 19:30
English, 18.02.2021 19:30
Mathematics, 18.02.2021 19:30
Biology, 18.02.2021 19:30
History, 18.02.2021 19:30
Chemistry, 18.02.2021 19:30