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Why can NaOH not be used as a primary standard during titration?
A sample of vinegar is 5.38 acetic acid by mass. What mass of acetic acid is contained in 775 ml bottle of vinegar? Assume density of vinegar is 1.01 g/ml
A solution is made by dissolving 0.40 mole of NaCl in enough water to give a final volume of 250.0 ml . What is the molarity of the solution?
Osmotic pressure of a solution containing dissolved protein of solution is 20 MmHg at 27 degrees C calculate the concentration of protein
A solution containing 25.6 g of sulfur dissolve in 1000g of naphthalene gave a freezing point lowering of 0.680. what is the molar mass of solute? For naphthalene k(6.8k/m)
What is the limiting reactant
A 45.60g sample of a gaseous flurocarbon contains 7.9g of carbon and 37.66g of fluorine and occupies 7.40L at STP(P=1.00atm and T=273.15k). Determine the approximate molar mass of the flurocarbon and give it's molecular formula
A solid hydrocarbon is burned in air in a closed container,producing a mixture of gases having a total pressure of 3.34 atm. Analysis of the mixture shows it to contain 0.340g of water vapour,0.792g of carbon dioxide,0.288g of oxygen,3.790g on nitrogen and no other gases. Calculate the mole fraction and partial pressure of carbondioxide in this mixture
arrange the compounds in increasing in terms of Melting Point and Velocity
H2O, H2S, Br2, NaCl
Determine the volume/volume percent solution made by combining 25 mL of ethanol with enough water to produce 200 mL of the solution.
