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Q: Calculate the w/v percentage of 4.39g of sucrose in 293 mL of water?
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Q: V = 127 mL at 273 K; V = ? Ml at 373 K
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Q: Calculate the w/v percentage of 4.39 g of sucrose in 293 mL of water?
A: Answer: 1.5 % w/v
Q: calculate the w/v percentage of 4.39g of sucrose in 293ml of water
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Q: How many milligrams of a drug should be used in preparing 100 mL of a stock solution such that 10mL…
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Q: How many grams of Pb(NO3)2 (331.2 g/mol )are needed to prepare 200 ppm (w/v) of Pb*2 (207.2 g/mol)…
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Q: A solution was prepared by dissolving 6.34 g KCl.MgCl2.6H2O in sufficient water to give 2.00 L.…
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Q: What percentage is the (w/v) of a mixture of 21.6g LiCl in 602mL solution?
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Q: Describe the preparation of 500 mL of 2.45%(v/v) aqueous ethanol
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Q: How many liters of stock 5% w/v H2O2 (MW 34) are needed to make 300 mL of 450 mM solution?
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Q: Vhat is the equivalent value in kPa of 0.32 mmHg?
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Q: 4. What mass of MgNH4PO4 precipitated when 200.0 mL of a 1.000% (w/v) solution of MgCl2 were treated…
A: The reagent present in lesser amount which limits the production is referred as the limiting…
Q: 4. What mass of MgNH4PO4 precipitated when 200.0 mL of a 1.000% (w/v) solution of MgCl2 were treated…
A: Excess reagent is the reagent which is left unreacted after the completion of reaction.
Q: 4. What mass of MGNH4PO4 precipitated when 200.0 mL of a 1.000% (w/v) solution of MgCl2 were treated…
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Q: What is Molarity of a 10.00% (v/v) acetic acid ? Density of pure acetic acid is 1.05 g/mL.
A: Given:
Q: Calculate the molarity of a 91.9 wt% solution of H2SO4 with a solution density of 1.61g/ml.
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Q: Prepare 250 ml of 2.5% w/v NaCl
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Q: 5. What is the approximate molarity, molality and normality of a 13% w/w solution of H2SO4…
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Q: 5-A solution of common salt in water is prepared by adding 30 g of salt ( CaCl2 ) to 100 g of water,…
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Q: Calculate the Volume of Carbon Dioxide gas that was produced in the reaction of baking soda and…
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Q: Calculate the molar concentration of the polycyclic aromatic hydrocarbon (PAH), anthracene (178.23…
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Q: Calculate the molar concentration of the polycyclic aromatic hydrocarbon (PAH), anthracene (178.23…
A: We have to calculate the molar concentration of water .
Q: Calculate the molar concentration of the polycyclic aromatic hydrocarbon (PAH), anthracene (178.23…
A: 1 ppb = 10-6 g/L W = M x MW x V (in L) M = W/(MW x V)
Q: What is the molarity of the solution prepared by concentrating, by evaporation of solvent, 755 mL of…
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Q: A solution contains 5% w/v Al2(SO4)3.14H20 (MW = 600). Assuming there is complete ionization,…
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Q: If the solubility of O2 at 0.160 bar and 25°C is 6.65 g/100 g H2O, what is the solubility of O2 at a…
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Q: A solution of acetic acid is prepared by adding 164.2 g of the acid to sufficient water to make 800…
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Q: HCl and NH3 react to form a white solid, NH4Cl. If cotton plugs saturated with aqueous solutions of…
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Q: What is the molarity of the solution prepared by concentrating, by evaporation of solvent, 755 mL of…
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Q: Calculate the molar concentration of the polycyclic aromatic hydrocarbon ( PAH ), anthracene (…
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Q: 2. Describe the Preparation of 750ml of 6.00 M H,PO, from the commercial reagent that is 85% H,PO,…
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Q: The solubility of magnesium fluoride in water is 0.015g/L. What is the Ksp value of magnesium…
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Q: The solubility of magnesium fluoride in water is 0.015g/L. What is the Ksp value of magnesium…
A: MgF2(s) = Mg^2+(aq) + 2F^-(aq) s s 2s Ksp =…
Q: Determine the normality of the following solutions: 95g PO4(-3) in 100mL solution
A: To determine the normality of a 95g PO4(-3) in 100mL solution.
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Q: What will be the new vapor pressure of the water in a 250 mL solution of 5 grams CaSO4 (MW= 136.14…
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Q: What will be the new vapor pressure of the water in a 250 mL solution of 5 grams CaSO4 (MW= 136.14…
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Q: What is the concentration of O2 in freshwater? Air temperature= 295.65 K. Air pressure = 1…
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Q: How many moles of solute particles are present in 1.64 mL of 0.458 M K2SO4? (the answer is 2.25E-3…
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Q: Describe how you would prepare 350.0 mL of 0.100 M C12H22O11 starting with 3.00 L of 1.50 МС12Н2О1-
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Q: 435 mL of a 2.2% v/v solution of ethyl acetate, C,Hs O2, in water mL of C,Hs O2 mL of water
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Q: The molar concentration of 290 ppm of Cs* (132.91 g/mol) in a solution that has a specific gravity…
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Q: 4- Describe the preparation of 200 mL of 3 F H2SO4 from the concentrated solution which is 95% (w/w)…
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Q: How would you prepare 250 mL of a 4.4% w/v KBr solution in water? Assume that a 250-mL volumetric…
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Q: Assuming the density of a dilute 10.0 mM solution of hydrogen peroxide (H2O2) is 1.00 g cm–3,…
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Q: How would you prepare 250 mL of a 4.4% w/v KBr solution in water? Assume that a 250-mL volumetric…
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