Chemistry, 20.12.2019 05:31 2337911726
Achemical reaction was run in 210.0 ml of h2o. during the reaction, the temperature of the h2o changes from 27.2 oc to 57.6 oc. how much heat (in kj) did the chemical reaction produce? for h2o, cp= 4.184 j/(g · oc). assume the mass of the solution is 210.0 g. enter your answer as a positive decimal number.
Answers: 1
Chemistry, 22.06.2019 09:00
Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?
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 14:20
Which of the following are sources of revenue for media companies? a. direct sales to producers b.advertising and subscriptions c. online purchase d. capital investments
Answers: 1
Chemistry, 22.06.2019 22:30
Which process describes vaporization that takes place below the surface of a liquid? condensation melting boiling evaporation
Answers: 1
Achemical reaction was run in 210.0 ml of h2o. during the reaction, the temperature of the h2o chang...
Spanish, 23.05.2021 09:10
History, 23.05.2021 09:10
German, 23.05.2021 09:10
Mathematics, 23.05.2021 09:10
Mathematics, 23.05.2021 09:10
Mathematics, 23.05.2021 09:10
Mathematics, 23.05.2021 09:10
Mathematics, 23.05.2021 09:10
Mathematics, 23.05.2021 09:10
Mathematics, 23.05.2021 09:10
Mathematics, 23.05.2021 09:10
Mathematics, 23.05.2021 09:10
History, 23.05.2021 09:10