Assuming that the only ions contributing to the salt content in the Dead sea is Na+-...
Assuming that the only ions contributing to the salt content in the Dead sea is Na+- and Cl--ions calculate the weight of NaCl(s) after 10 L of the sea water from has been evaporated. The salt content of the Dead sea is reported as 33.7%. Give your answer in kg.
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Assuming that the only ions contributing to the salt content in
the Dead sea is Na+-...
Question 1 - C1 (4 marks) 150 kg/s of sea water with a salt content of...
Question 1 - C1 (4 marks) 150 kg/s of sea water with a salt content of 3.5% by mass, is to be desalinated by a reverse process shown schematically below: osmosis Reverse Osmosis Cell Waste Water 150 kg/s -,4 % salt 3.5% salt Desalinated Water 500 pprn Salt (0.05%) The desalinated water has a salt content of 500 ppm (parts per milion) by mass and the waste water stream has a salt content of 4 % by mass. Note that...
2. What is the molality of a concentrated solution of NH4Cl at 90°C (see diagram)? Solubility...
2. What is the molality of a concentrated solution of NH4Cl at 90°C (see diagram)? Solubility vs. Temperature for Solids KI NaNO, gases solids KNO, NH,Cl Solubility (grams of solute/100 g H20) KCI 3. If a 250. g solution with 21.4% KClO3 is concentrated, what must be the temperature of the solution (see diagram)? Nach AKCIO 0 SO 10 20 30 40 50 60 70 80 90 100 Temperature °C 4. Calculate the molarity of a solution of copper (11)...
Only need answer for b.). Please show your work! A tank contains 70 kg of salt and 1000 L of water. Pure water enters a...
Only need answer for b.). Please show your work!
A tank contains 70 kg of salt and 1000 L of water. Pure water enters a tank at the rate 10 L/min. The solution is mixed and drains from the tank at the rate 5 L/min (a) What is the amount of salt in the tank initially? Preview (kg) amount-70 Find the amount of salt in the tank after 1.5 hours. * Preview (kg) amount - 69.47696384 (c) Find the concentration...
2+ 3 Blood plasma (p 1.03 g/mL) contains 2.5 mmol/L of Ca ions. Assuming that all...
2+ 3 Blood plasma (p 1.03 g/mL) contains 2.5 mmol/L of Ca ions. Assuming that all calcium cations are present as calcium chloride, calculate the mass percentage of CaCl2 in plasmia in mg%. [Answer: 26.9 mg%] 4. The mass percentage of iron as an element in blood is 50 mg%. Calculate the mass of iron cations in 5 kg of blood. [Answer: 2.5 g] prep a SorutioI 0.Which mass of water should be added to 75 g of a 5%...
PHARMACEUTICS CLASS Question 1: The activity of sodium ions in a 0.10 M solution is 0.079M....
PHARMACEUTICS CLASS Question 1: The activity of sodium ions in a 0.10 M solution is 0.079M. What percentage of ions in this solution is free? Write numerical answer only; round to nearest percentage. Question 2: Calculate the ionic strength of a solution that contains 0.184 M NaCl, 0.318 M CaCl2, 5% w/v dextrose (mw = 180.16 g/mol), and 0.021 M FeCl3. Report answer to three decimal places (with leading zeros as appropriate). Do not type units into answer field (assume...
A 37.0 mL aliquot of a 0.600M stock solution must be diluted to 0.100 M. Assuming...
A 37.0 mL aliquot of a 0.600M stock solution must be diluted to 0.100 M. Assuming the volumes are additive, how much water should be added? volume of water 222 mL How many grams of chlorine gas are needed to make 5.30 x 10 g of a solution that is 1.20 ppm chlorine by mass? g Cl mass Classify each compound as a strong electrolyte, weak electrolyte, or nonelectrolyte. Strong electrolyte Weak electrolyte Nonelectrolyte H,SO (NH,),S H,CO, Classify the mixtures...
10. When sodium chloride dissolves in water, the ions dissociate: NaCl (s) = Na+ (aq) +...
10. When sodium chloride
dissolves in water, the ions dissociate: NaCl (s) = Na+
(aq) + Cl- (aq)
Write ionic equations, similar to the one above, that describe
how NaNO3 and NaCH3CO2 each
dissociate as they dissolve in water. Include heat as a reactant or
product in each equation.
Here is what I answered:
NaNO3 (s) = Na+ +
NO3- + heat
NaC2H3O2 + Heat =
Na+ +
C2H3O2-(ag)
Lab data table attached to determine where to place heat.
AGO no...
The Na,Co, solution described above was used to analyse a hydrochloric acid solution of unknown concentration....
The Na,Co, solution described above was used to analyse a hydrochloric acid solution of unknown concentration. It was found that 24.30 mL of the Na,Co, solution was required to neutralise a 20.00 mL sample of the hydrochloric acid solution. 4. Using your answer to part 3 above, calculate the amount of Na,Co, present in 24.30 mL of the Na,Co, solution. (2 marks) 5. Using your answer to part 2 above, deduce the amount of HCl that was present in the...
MODEL 7-Conversion Factors from Other Concentration Units Conversion Factors Statement The average concentration of bromide ions...
MODEL 7-Conversion Factors from Other Concentration Units Conversion Factors Statement The average concentration of bromide ions in sea water is 67.3 10° g sea water 67.3 g Br 67.3 g Br 10° g sea water ppm 3.6 g K 1000 g banana 1000 g banana The average banana contains 3.6 ppt potassium 3.6 g K 10° gair 4.7 g H,S 10 g air The average human can detect H,S is air by smell at 4.7 ppb 4.7 g H,S Q42...
For the table below, design an ion exchange system for the removal of calcium. The flow rate to be treated is 5.45 ML/d. The system should be sized so that the minimum time between regenerations is 72...
For the table below, design an ion exchange system for the removal of calcium. The flow rate to be treated is 5.45 ML/d. The system should be sized so that the minimum time between regenerations is 72 h. The column diameter should be 3 m and there should be at least 2 columns. Pilot testing indicates optimal regeneration efficiency corresponded to using 10% NaCl solution (specific gravity = 1.07) at a salt usage rate of 310 kg NaCl per m3...
Question 1 - C1 (4 marks) 150 kg/s of sea water with a salt content of 3.5% by mass, is to be desalinated by a reverse process shown schematically below: osmosis Reverse Osmosis Cell Waste Water 150 kg/s -,4 % salt 3.5% salt Desalinated Water 500 pprn Salt (0.05%) The desalinated water has a salt content of 500 ppm (parts per milion) by mass and the waste water stream has a salt content of 4 % by mass. Note that...
2. What is the molality of a concentrated solution of NH4Cl at 90°C (see diagram)? Solubility vs. Temperature for Solids KI NaNO, gases solids KNO, NH,Cl Solubility (grams of solute/100 g H20) KCI 3. If a 250. g solution with 21.4% KClO3 is concentrated, what must be the temperature of the solution (see diagram)? Nach AKCIO 0 SO 10 20 30 40 50 60 70 80 90 100 Temperature °C 4. Calculate the molarity of a solution of copper (11)...
Only need answer for b.). Please show your work!
A tank contains 70 kg of salt and 1000 L of water. Pure water enters a tank at the rate 10 L/min. The solution is mixed and drains from the tank at the rate 5 L/min (a) What is the amount of salt in the tank initially? Preview (kg) amount-70 Find the amount of salt in the tank after 1.5 hours. * Preview (kg) amount - 69.47696384 (c) Find the concentration...
2+ 3 Blood plasma (p 1.03 g/mL) contains 2.5 mmol/L of Ca ions. Assuming that all calcium cations are present as calcium chloride, calculate the mass percentage of CaCl2 in plasmia in mg%. [Answer: 26.9 mg%] 4. The mass percentage of iron as an element in blood is 50 mg%. Calculate the mass of iron cations in 5 kg of blood. [Answer: 2.5 g] prep a SorutioI 0.Which mass of water should be added to 75 g of a 5%...
A 37.0 mL aliquot of a 0.600M stock solution must be diluted to 0.100 M. Assuming the volumes are additive, how much water should be added? volume of water 222 mL How many grams of chlorine gas are needed to make 5.30 x 10 g of a solution that is 1.20 ppm chlorine by mass? g Cl mass Classify each compound as a strong electrolyte, weak electrolyte, or nonelectrolyte. Strong electrolyte Weak electrolyte Nonelectrolyte H,SO (NH,),S H,CO, Classify the mixtures...
10. When sodium chloride
dissolves in water, the ions dissociate: NaCl (s) = Na+
(aq) + Cl- (aq)
Write ionic equations, similar to the one above, that describe
how NaNO3 and NaCH3CO2 each
dissociate as they dissolve in water. Include heat as a reactant or
product in each equation.
Here is what I answered:
NaNO3 (s) = Na+ +
NO3- + heat
NaC2H3O2 + Heat =
Na+ +
C2H3O2-(ag)
Lab data table attached to determine where to place heat.
AGO no...
The Na,Co, solution described above was used to analyse a hydrochloric acid solution of unknown concentration. It was found that 24.30 mL of the Na,Co, solution was required to neutralise a 20.00 mL sample of the hydrochloric acid solution. 4. Using your answer to part 3 above, calculate the amount of Na,Co, present in 24.30 mL of the Na,Co, solution. (2 marks) 5. Using your answer to part 2 above, deduce the amount of HCl that was present in the...
MODEL 7-Conversion Factors from Other Concentration Units Conversion Factors Statement The average concentration of bromide ions in sea water is 67.3 10° g sea water 67.3 g Br 67.3 g Br 10° g sea water ppm 3.6 g K 1000 g banana 1000 g banana The average banana contains 3.6 ppt potassium 3.6 g K 10° gair 4.7 g H,S 10 g air The average human can detect H,S is air by smell at 4.7 ppb 4.7 g H,S Q42...
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