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The concentration of Cu2+ ion in a sample of spring water is 5.3 ppm. What mass...
2) The EPA has determined that the maximum safe level of nitrate ion in water is 10 ppm. Suppose a sample of tap water was determined to have a nitrate ion concentration of 95 ppb. Assume the density of water is 1.00 g/mL a) What is the concentration of nitrate ion in units of ppm? Is it safe to drink? b) What is the concentration of nitrate ion in units of mg/ml? c) What mass of nitrate ion is in...
10) 0.0085 g of N3⁻ is dissolved in 1.3 L of water. Determine the concentration of N3⁻ ions in ppm if the density of the solution is 1.00 g/mL. Show work A) 3.6 ppm B) 9.6 ppm C) 6.5 ppm D) 2.4 ppm E) 7.2 ppm
A 1.00 L sample of water contains 0.0048 g of SH ions. Determine the concentration (in ppm) of SH ions? The density of the solution is 1.00 g/mL. and What is the weight percent of a caffeine solution prepared by dissolving 6.35 g of caffeine, C8H10N4O2, in 75.0 g of benzene, C6H6?
The concentration of chlorine in pool water is 1.50 ppm. What mass of chlorine is present in 3.78x108 g of water (which is equivalent to 100,000 gallons of water)? Answer in "g Chlorine"
An analytical chemist determines that a water sample contains 1.5 g/L of sulfate ion (SO4^2- ). What is the concentration in terms of a. gram/L of sulfur b. molar concentration of sulfate c. ppm (in dilute solutions 1ppm=1 mg/L)
Calculate the concentration in %(w/w) of the following solutions. Assume water has a density of 1.00 g/mL. 5.3g of sugar and 100. mL of water 5.3 g of any solute and 100. mL of water 5.3 g of any solute and 100. g of any solvent
1.What is the percent yield of a reaction in which 45.5 g of tungsten (VI) oxide (WO3) reacts with excess hydrogen gas to produce metallic tungsten and 9.60 mL of water? (density of water = 1.00 g/mL; molar mass of WO3 = 231. 84 g/mol; and molar mass of H2O = 18.01 g/mol) WO3 + 3H2(g) → W(s) + 3H2O(l) 2.A solution is prepared by mixing 115 mL of 0.34 M NaNO3 and 125 mL of 0.56 M Na2CO3. What...
what is the mass concentration in mg/L and ppm of a solution containing 1 g of solids in 10 L of methanol? methanol= 0.792 g/mL
Test sample volume = 10.00 mL Average NaOH volume = 13.10 NaOH concentration = 0.1051 M Scenario 3: In small amounts (-1 ppm = 1 mg/L) copper (II) ions are used as an algaecide in swimming pools. Blue Water Pool Treatments (BWPT), a producer of algaecide and other pool chemicals, recently had an incident at one of their manufacturing plants; someone added too much copper sulphate to the product mixture, resulting in an algaecide that is more concentrated than the...
A dissolved chemical in water has a concentration of 30 ppm by mass. What is the quantity of water needed to have 1 gram (0.0022 lb.) of this chemical? (Select the best answer and then click 'Submit.') 0251 O 301 33.31 37.5L