Chemistry, 17.04.2021 01:00 issagirl05
Titration of sodium carbonate and nitric acid 25cm³ of sodium carbonate require a certain volume of nitric acid of conc. 0.13M for complete neutralization
Answers: 3
Chemistry, 22.06.2019 10:40
If an area has high air pressure and low humidity, what type of weather will it most likely have? plz !
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Chemistry, 22.06.2019 11:40
Modern pennies are composed of zinc coated with copper. a student determines the mass of a penny to be 2.482 g and then makes several scratches in the copper coaling (to expose the underlying zinc). the student puts the scratched penny in hydrochloric acid, where the following reaction occurs between the zinc and the hcl (the copper remains undissolved): zn(s) + 2 hcl(aq) → h2(g) + zncl(aq)the student collects the hydrogen produced over water at 25 °c. the collected gas occupies a volume of 0.899 l at a total pressure of 79 j mmhg. calculate the percent zinc (by mass) in the penny. (assume that all the zn in the penny dissolves.)
Answers: 1
Chemistry, 22.06.2019 13:00
If two objects at different te,peraure are in contact with each other what happens to their temperature
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Titration of sodium carbonate and nitric acid 25cm³ of sodium carbonate require a certain volume of...
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