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A 150.0 g sample of ocean water contains 3.5 mg of mercury. How many parts per...
A 200.0g sample of rainwater contains 4.8 mg of sulfuric acid. how many parts per million of sulfuric acid are in the sample?
if a given water sample contains 10 parts per million phosphate, how many grams of phosphate would a liter (1,000 g) contain
QUESTION 18 Calculate the parts per million of mercury in 3.0 g of river water containing 1.5 x 10-6 g of Hg. 0.5 ppm 4.5 ppm 9.2 ppm 30 ppm
A chemical analysis of a water sample indicates that the water contains 6.50 times 10^-4 grams of Mercury metal per 2.00 liters of water. Convert the measurement to parts per million(ppm).Type in your answer without units.
Parts per million (ppm) strengths 31 If drinking water contains 0.7 ppm of fluoride, how much fluoride (in milligrams) would be present in 1 litre of water?
Hard water normally contains mineral ions, such as Ca2+ and Mg2+ ions, from minerals that dissolved in the ground water. For water of low hardness, the concentration of Ca2+ ions is usually expressed as ppm CaCO3 in the water sample. Parts per million (ppm) is defined as one part of solute mass per 1,000,000 parts of solution mass, as shown in the following equation. Please note, the unit of denominator and numerator needs to be the same. Since ppm expresses...
4. Silver chloride is a relatively insoluble salt. Only 1.92 mg of AgCl will dissolve per liter of water at 25°C. How many parts per million of Agt can be present in water at 25°C? Assume the density of the solution equals the density of water, 1.00 g/mL. a. 0.52 ppm b. 0.93 ppm c. 1.92 ppm d. 9.30 ppm e. 52.0 ppm
4. Silver chloride is a relatively insoluble salt. Only 1.92 mg of AgCl will dissolve per liter of water at 25°C. How many parts per million of Agt can be present in water at 25°C? Assume the density of the solution equals the density of water, 1.00 g/mL. a. 0.52 ppm b. 0.93 ppm c. 1.92 ppm d. 9.30 ppm e. 52.0 ppm
Chapter 15 Determination of the Hardness of Water 3, A 100-mL. sample of hard water is titrated with the EDTA solution in Problem 2. The same amount of Mg' is added as previously, and the volume of EDTA required is 31.84 mL a What volume of EDTA is used in titrating the Ca" in the hard water? mL h How many moles of EDTA are there in that volume? moles c. How many moles of Ca are there in the...
18. If the concentration of the herbicide atrazine, commonly used in corn prode a water sample is 0.1 g/L, how many parts per million are present? 19. An elementary school wants to ensure the lead concentration in its soil is less than 100 ppm. If the administration sends a soil sample for analysis and the report indicates a lead concentration of 15,000 μg/g, is this soil concentration under the 100 ppm limit?