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4. Question 4-6 in fubramanya 4th edition A 500 g/l solution of wodium dichromate was used...
Q1. The stage-discharge data of a river are given below. Establish a stage discharge relationship...
Q1. The stage-discharge data of a river are given below. Establish a stage discharge relationship to predict the stage for known discharge. Assume the stage value for a zero discharge as 20.50 m. Also determine the stage of river corresponding to a discharge of 2600 m3/s. Table 1: Stage discharge data Stage (m): 21.95 22.45 22.8 2323.4 23.75 23.65 Q (m3/s)100 220 295 400 490 500 640 Stage (m) 24.05 24.55 24.85 25.4 25.15 25.55 25.9 m3 /s) 780 1010...
Determine the concentrations of BaBr2, Ba2+, and Br− in a solution prepared by dissolving 2.38 × 10−4 g BaBr2 in 1.00 L...
Determine the concentrations of BaBr2, Ba2+, and Br− in a solution prepared by dissolving 2.38 × 10−4 g BaBr2 in 1.00 L of water. Express all three concentrations in molarity. Additionally, express the concentrations of the ionic species in parts per million (ppm). [BaBr2]= M [Ba2+]= M [Ba2+]= ppm [Br−]= M [Br−]= ppm
Determine the concentrations of K2SO4, K+, and SO42-in a solution prepared by dissolving 1.35x 10-4 g...
Determine the concentrations of K2SO4, K+, and SO42-in a solution prepared by dissolving 1.35x 10-4 g K2SO4 in 2.50 L of water. Express all three concentrations in molarity. Additionally, express the concentrations of the ionic species in parts per million (ppm). Note: Determine the formal concentration of so. Ignore any reactions with water. Number (K,so, 113-099×10-7 Number Number 6.2x 10-7 0248 ppm Number Number 3.099 x 107 M .0124 ppm
4 What is the molar mass of a nonelectrolyte if a solution containing 45.0 g of...
4 What is the molar mass of a nonelectrolyte if a solution containing 45.0 g of the nonelectrolyte in 75.0 g of benzene boils at 90.2°C? For a system at equilibrium, which of the following are true? 5- a. The rate of the reaction is zero. b. Th c. The value for th e concentrations of reactants and products are no longer changing. e equilibrium constant, K, will change when temperature is changed. The rate of the forward reaction is...
Question 4 A contaminated groundwater contains 60 ug/L (i.e., 0.060 mg/L) of ethylbenzene. You are pumping...
Question 4 A contaminated groundwater contains 60 ug/L (i.e., 0.060 mg/L) of ethylbenzene. You are pumping this groundwater out from your client's site, and have to treat it before it is discharged. You have decided to treat it by air stripping, which will volatilize the ethylbenzene and remove it from the water. Assuming this removal occurs as a single-step process, estimate the volume of air (in L) that needs to be contacted with every 1 L of water to lower...
Question 27 (4 points) A laboratory technician dilutes a 1.50 g/L stock saline solution, NaCl(aq) by...
Question 27 (4 points) A laboratory technician dilutes a 1.50 g/L stock saline solution, NaCl(aq) by transferring 5.0 ml of the stock solution to a 50.0 ml volumetric flask and adding water to the volume mark. a) What is the concentration of the stock saline solution in mol/L? b) What is the concentration of the diluted solution in mol/L? DOC. Paragraph BIU. WRITE YOUR ANSWER TO THIS QUESTION ON A SEPARATE SHEET OF PAPER DON'T FORGET TO INCLUDE THE QUESTION...
Name:. Date: Lab Section: 4. The blank solution used to calibrate the spectrophotometer is 5.0 mL...
Name:. Date: Lab Section: 4. The blank solution used to calibrate the spectrophotometer is 5.0 mL of 0.2 M Fe(NO)) diluted to 50 mt with H:O Why is this solution preferred to simply using de-ionized water for the calibration? Te celibutoneans ser He astanat os errors-free Te deionized woser alane sho no abtorpton 5. A reaction mixture of 4.00 mL. of 0.00200 M SCN and 5.00 mL of 0.00200 M Fe is uoreangth diluted to 10.00 mL with 0.1 M...
Question 2 Compound "Y" (molar mass = 480.5 g moll) used as a food coloring. Following...
Question 2 Compound "Y" (molar mass = 480.5 g moll) used as a food coloring. Following experiment was carried out to find the concentration of "Y" in a beverage. A stock solution of compound "Y" (concentration = 7.50 0 10-4 mol L-) was used to prepare a series of standard solutions. Calibrated pipets and 100.0 mL volumetric flasks were used for these preparations. Then, absorbance of these solutions were measured at 460 nm using 1-cm cuvettes. A dilution was carried...
If 0.1 g of Ferric sulfate Fe_2(SO_4)_3 is added to 1 L of water, Express the...
If 0.1 g of Ferric sulfate Fe_2(SO_4)_3 is added to 1 L of water, Express the concentration of Ferric sulfate in the following in terms of (a) mg/L, (b) ppm, (c) molarity, (d) % weight (Assume the specific gravity of solution is 1.0) A 10-litre cylinder containing 500 g of chlorine gas is to be used for disinfection of water. What will be the pressure inside the cylinder at a temperature of 20 degree C? A digester gas holding tank...
Find the molar mass of the unknown compound given the following information: A 1.216 g sample...
Find the molar mass of the unknown compound given the following information: A 1.216 g sample of an unknown compound was dissolved in 8.379 g of BHT BHT is a non-polar solvent with a k, = 6.83°C/m. The freezing point depression (AT) was measured as 3.30'C. Useful information AT, = Kim Hint: sole for molality and then use the mass of the solvent to find the number of moles of solute. If the rate constant for the reaction below is...
Q1. The stage-discharge data of a river are given below. Establish a stage discharge relationship to predict the stage for known discharge. Assume the stage value for a zero discharge as 20.50 m. Also determine the stage of river corresponding to a discharge of 2600 m3/s. Table 1: Stage discharge data Stage (m): 21.95 22.45 22.8 2323.4 23.75 23.65 Q (m3/s)100 220 295 400 490 500 640 Stage (m) 24.05 24.55 24.85 25.4 25.15 25.55 25.9 m3 /s) 780 1010...
Determine the concentrations of K2SO4, K+, and SO42-in a solution prepared by dissolving 1.35x 10-4 g K2SO4 in 2.50 L of water. Express all three concentrations in molarity. Additionally, express the concentrations of the ionic species in parts per million (ppm). Note: Determine the formal concentration of so. Ignore any reactions with water. Number (K,so, 113-099×10-7 Number Number 6.2x 10-7 0248 ppm Number Number 3.099 x 107 M .0124 ppm
4 What is the molar mass of a nonelectrolyte if a solution containing 45.0 g of the nonelectrolyte in 75.0 g of benzene boils at 90.2°C? For a system at equilibrium, which of the following are true? 5- a. The rate of the reaction is zero. b. Th c. The value for th e concentrations of reactants and products are no longer changing. e equilibrium constant, K, will change when temperature is changed. The rate of the forward reaction is...
Question 4 A contaminated groundwater contains 60 ug/L (i.e., 0.060 mg/L) of ethylbenzene. You are pumping this groundwater out from your client's site, and have to treat it before it is discharged. You have decided to treat it by air stripping, which will volatilize the ethylbenzene and remove it from the water. Assuming this removal occurs as a single-step process, estimate the volume of air (in L) that needs to be contacted with every 1 L of water to lower...
Question 27 (4 points) A laboratory technician dilutes a 1.50 g/L stock saline solution, NaCl(aq) by transferring 5.0 ml of the stock solution to a 50.0 ml volumetric flask and adding water to the volume mark. a) What is the concentration of the stock saline solution in mol/L? b) What is the concentration of the diluted solution in mol/L? DOC. Paragraph BIU. WRITE YOUR ANSWER TO THIS QUESTION ON A SEPARATE SHEET OF PAPER DON'T FORGET TO INCLUDE THE QUESTION...
Name:. Date: Lab Section: 4. The blank solution used to calibrate the spectrophotometer is 5.0 mL of 0.2 M Fe(NO)) diluted to 50 mt with H:O Why is this solution preferred to simply using de-ionized water for the calibration? Te celibutoneans ser He astanat os errors-free Te deionized woser alane sho no abtorpton 5. A reaction mixture of 4.00 mL. of 0.00200 M SCN and 5.00 mL of 0.00200 M Fe is uoreangth diluted to 10.00 mL with 0.1 M...
Question 2 Compound "Y" (molar mass = 480.5 g moll) used as a food coloring. Following experiment was carried out to find the concentration of "Y" in a beverage. A stock solution of compound "Y" (concentration = 7.50 0 10-4 mol L-) was used to prepare a series of standard solutions. Calibrated pipets and 100.0 mL volumetric flasks were used for these preparations. Then, absorbance of these solutions were measured at 460 nm using 1-cm cuvettes. A dilution was carried...
If 0.1 g of Ferric sulfate Fe_2(SO_4)_3 is added to 1 L of water, Express the concentration of Ferric sulfate in the following in terms of (a) mg/L, (b) ppm, (c) molarity, (d) % weight (Assume the specific gravity of solution is 1.0) A 10-litre cylinder containing 500 g of chlorine gas is to be used for disinfection of water. What will be the pressure inside the cylinder at a temperature of 20 degree C? A digester gas holding tank...
Find the molar mass of the unknown compound given the following information: A 1.216 g sample of an unknown compound was dissolved in 8.379 g of BHT BHT is a non-polar solvent with a k, = 6.83°C/m. The freezing point depression (AT) was measured as 3.30'C. Useful information AT, = Kim Hint: sole for molality and then use the mass of the solvent to find the number of moles of solute. If the rate constant for the reaction below is...
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