Chemistry, 28.01.2020 22:44, richiearieona1012

Suppose an epa chemist tests a 250.0 ml sample of groundwater known to be contaminated with nickel(ii) chloride, which would react with silver nitrate solution like this:
nicl_2(aq) + 2agno_3 (aq) > agcl (s) + ni(no_3)_2 (aq)
the chemist adds 58.0m silver nitrate solution to the sample until silver chloride stops forming. he then washes, dries, and weighs the precipitate. he finds he has collected of 3.6 mg of silver chloride.
1. calculate the concentration of nickel(ii) chloride contaminant in the original groundwater sample. round your answer to 2 significant digits.

Answers: 3

Show answers

Other questions on the subject: Chemistry

Chemistry, 21.06.2019 21:30, gallegosarmanni

Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water

Answers: 1

continue

Chemistry, 22.06.2019 06:00, VamPL

Oxidation-reduction reactions (often called "redox" for short) are reactions that involve the transfer of electrons from one species to another. oxidation states, or oxidation numbers, allow chemists to keep track of these electron transfers. in general, one element will lose electrons (oxidation), with the result that it will increase in oxidation number, and another element will gain electrons (reduction), thereby decreasing in oxidation number. the species that is oxidized is called the reducing agent or reductant. the species that is reduced is called the oxidizing agent or oxidant. to sum up: oxidation = increase in oxidation state = loss of electrons = reducing agent reduction = decrease in oxidation state = gain of electrons = oxidizing agent part a which element is oxidized in this reaction? fe2o3+3co→2fe+3co2 enter the elemental symbol. view available hint(s) is oxidized part b which element is reduced in this reaction? 2hcl+2kmno4+3h2c2o4→6co2+2mno2+2kcl +4h2o enter the elemental symbol. view available hint(s) is reduced

Answers: 1

continue

Chemistry, 22.06.2019 06:30, khalaflaf2684

If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution

Answers: 1

continue

Chemistry, 22.06.2019 13:00, taylorpayne525p8qxky

What is the mass of 2.00 l of an intravenous glucose solution with a density of 1.15 g/ml?

Answers: 2

continue

Do you know the correct answer?

Suppose an epa chemist tests a 250.0 ml sample of groundwater known to be contaminated with nickel(i...