Chemistry, 20.12.2019 03:31, dukkchild666
Avolume of 50.0 ml of 0.400 m hbr at 24.35°c is added to 50.0 ml of 0.400 m naoh, also at 24.35°c. after the reaction, the final temperature is 27.06°c. calculate the enthalpy change, h, per mole of hbr (in kj) for the reaction. heat specific capacity of the solution is 4.184 j/oc, density of the solution is 1.0 g/ml.
Answers: 3
Chemistry, 21.06.2019 20:30, flowergirly34
You are to give ampicillin with a recommended dose of 25mg/kg to a child with a mass of 29kg. if stock on hand is 250mg/capsule how many capsules should be given?
Answers: 1
Chemistry, 22.06.2019 21:20, paatnguyyen
One way in which the useful metal copper is produced is by dissolving the mineral azurite, which contains copper(ii) carbonate, in concentrated sulfuric acid. the sulfuric acid reacts with the copper(ii) carbonate to produce a blue solution of copper(ii) sulfate. scrap iron is then added to this solution, and pure copper metal precipitates out because of the following chemical reaction: (s) (aq) (s) (aq) suppose an industrial quality-control chemist analyzes a sample from a copper processing plant in the following way. he adds powdered iron to a copper(ii) sulfate sample from the plant until no more copper will precipitate. he then washes, dries, and weighs the precipitate, and finds that it has a mass of .
Answers: 2
Chemistry, 23.06.2019 02:00, xbeatdroperzx
Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.
Answers: 2
Avolume of 50.0 ml of 0.400 m hbr at 24.35°c is added to 50.0 ml of 0.400 m naoh, also at 24.35°c. a...
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