a sample of water has trace amounts of NaCl at 3.1*10^-4 M. find its concentration in ppm.

a sample of water has trace amounts of NaCl at 3.1*10^-4 M. find its concentration in...
1-sample water has a trace amount of 50 ppm of FeCl find its concentration in molarity mol/l. 2- -sample water has a trace amount of 50 ppb of FeCl3 find its concentration in molarity mol/l.
A 2.400×10−2 M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 999.4 mL . The density of water at 20.0∘C is 0.9982 g/mL. a. Calculate the molality of the salt solution. b. Calculate the mole fraction of salt in this solution. c. Calculate the concentration of...
To determine the phosphate concentration in a water sample, the following standard curve was produced. If the absorbance of the water sample is 0.030, what is its phosphate concentration? Standard Curve of Known Phosphate Concentrations (M) 0.3 y 1254.6x+0.0189 0.9889 025 0.2 015 0.1 0.05 500L-0S 1000-04 2.500-04 CONCENIRATION IM A. 2.6 x10-5 M VB. 8.8 x 10-6 M C. 3.1 x 104M D. 1.6 x 10-7 M
To determine the phosphate concentration in a water sample, the following standard...
Given the average concentration of calcium ion in natural water is 3.8×10^-4 M, and that the solubility product Ksp for CaF2 is 4×10^-11, calculate the maximum molar concentration of fluoride ion. Find the concentration fluoride in ppm scale as well.
A sample of mineral water contains 5.24 * 10^-2 of NaCl in 2.88 L. If the density of the water is 1.00 g/mL, how many ppm of NaCl is this equal to?
A 2.300×10−2 M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 999.4 mL . The density of water at 20.0∘C is 0.9982 g/mL. Express your answer(s) to four significant figures and include the appropriate units. Part A) Calculate the molality of the salt solution. Part B)...
(10)1. Find the concentration in (a) mg/L, (b) ppm, (c) ppb, and (d) moles/L (M), respectively, for thefollowing solution: 2 g of NaCl dissolved in 500 mL of water
9. If the OH − ion concentration of a blood sample is 3.1 × 10−7M, what is the pH of the blood sample? pH = Calculate the concentration of OH− ions in a 7.60 × 10−3 M HCl solution. [OH−] = × 10 M
maressa has 15.0g of a nacl solution that has concentration of 15.0% nacl(m/m). hiw much nacl is dissolved in that solution?
A 2.550×10−2M solution of NaCl in water is at 20.0∘C. The sample was created by dissolving a sample of NaCl in water and then bringing the volume up to 1.000 L. It was determined that the volume of water needed to do this was 999.3 mL . The density of water at 20.0∘C is 0.9982 g/mL. A) Calculate the molality of the salt solution. B) Calculate the mole fraction of salt in this solution. C) Calculate the concentration of the...