The Odessa water report states 0.44 ppm nitrate and 4.1 ppb lead as inorganic contaminants. a)...
The Odessa water report states 0.44 ppm nitrate and
4.1 ppb lead as inorganic contaminants.
a) how many micrograms of each contaminant are contained in 1 mL of
water?
b) give the concentration of each contaminant in mol/L
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The Odessa water report states 0.44 ppm nitrate and
4.1 ppb lead as inorganic contaminants.
a)...
1) The maximum allowable concentration of lead in drinking water is 9.0 ppb. (a) Calculate the...
1) The maximum allowable concentration of lead in drinking water is 9.0 ppb. (a) Calculate the molarity of lead in a 9.0-ppb solution. What assumption did you have tomake in your calculation? (b) How many grams of lead are in a swimming pool containing 9.0 ppb lead in 60 m3 of water?
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A 1.04 g sample of KBr is dissolved in water to give 155 mL of solution....
A 1.04 g sample of KBr is dissolved in water to give 155 mL of
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The precipitation reaction that occurs is: Pb2+ (aq) + 2 Br (aq)
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Help with all questions please Answer all questions on a separate sheet of paper. Show all...
Help with all questions please
Answer all questions on a separate sheet of paper. Show all work and answer all questions completely. Make sure you use the proper number of significant figures and units. Place a box around all answers. 1. (2 points) How many milligrams of potassium dichromate heptahydrate are needed to prepare 50 mL of a 0.0375 M aqueous solution? Describe the procedure for making this solution. 2. (3 points) If 0.125 L of aqueous solution with a...
Question 26 of 26 Lead(II) nitrate and ammonium iodide react to form lead(II) iodide and ammonium nitrate according to the reaction Pbl, (s)+2NH, NO, (aq) Pb(NO) (aq) +2 NH,1(aq)- What volume of a 0.650 M NH4I solution is required to react with 587 mL. ofa 0.540 M Pb(NO3)2 solution? volume: 669.6 ml. How many moles of Pbl2 are formed from this reaction? mol Pbl moles: 0.31698 erms of use contact us help about ua pracy policy careen MacBook Pro Q...
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A 1.04 g sample of KBr is dissolved in water to give 155 mL of
solution. This solution is then added to 165 mL of 0.015 M aqueous
Pb(NO3)2, in an attempt to remove the toxic lead(II) ions from the
solution via precipitation as insoluble PbBr2(s).
The precipitation reaction that occurs is: Pb2+ (aq) + 2 Br (aq)
---> PbBr2 (s)
At the end of the reaction, what is the concentration (in
molarity) of nitrate ions in the solution?
Note:...
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Chloroform (CHCI3) has a Drinking Water standard concentration of 0.10 mg/L What is this concentration expressed as parts per million (ppm)? Typical consumption Risk Analysis L/day for 70 years. How many grams of CHCI3 would the average human 1. a. b. assumes the average human drinks 2.2 during a lifetime at the Drinking Water standard concentration? consume Find the Volume of 1 mole of an ideal gas at 1.2 atm and 80°C 2. The Air Quality Standard for sulfur dioxide...
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Help with all questions please
Answer all questions on a separate sheet of paper. Show all work and answer all questions completely. Make sure you use the proper number of significant figures and units. Place a box around all answers. 1. (2 points) How many milligrams of potassium dichromate heptahydrate are needed to prepare 50 mL of a 0.0375 M aqueous solution? Describe the procedure for making this solution. 2. (3 points) If 0.125 L of aqueous solution with a...
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