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What volume of 0.550 M Na3PO4 is required to precipitate all the lead(II) ions from 160.0 mL of 0.700 M Pb(NO3)2?
Methane and hydrogen sulfide form when 36g H2 reacts with carbon disulfide. calculate the percent yield if the actual yield of CH4 is 69.8 g
In a fuel cell using oxygen as the oxidizer and hydrogen as the fuel, what is the overall cell reaction?
The vapor pressure of an unknown compound at 25 degrees C is 94.6 Torr and its enthalpy of vaporization is 30811 J/mol. Estimate the normal boiling point of this compound. assume the enthalpy of vaporization is independent of temperature.
An aqueous solution of KI has a freezing point of -1.70 C and an osmotic pressure of 26.5 atm at 25.0 C. What is the density ?
A mechanic in an automotive repair shop is exposed to the following carbon monoxide levels over an 8 hour shift.
The combustion of alkanes, alkenes and alkynes produces, A. water and carbon. B. carbon dioxide and hydrogen. C. oxygen and hydrogen. D. hydrogen and water. E. carbon dioxide and water.
sulfate dissolves as follows: Na2SO4(s) → 2Na+(aq) + SO42- (aq). How many moles of Na2SO4 are required to make 1.0 L of solution in which the Na concentration is 0.10 M?
What is the molality of ethanol in a solution prepared by dissolving 5.00 mL of ethanol (C2H5OH, of density 0.800 grams/mL) in 25.0 mL of water (H2O, of density 1.000 grams/mL)?
Determine the mass of phosphorus (P) is required to make 39 grams of this product?
Consider a rigid, adiabatic, impermeable cylinder (i.e., a closed isolated system) that consists of two chambers (i.e., simple systems) that are separated by a wall that is permeable
when 31g of phosphorus reacts with oxygen, 71g of an oxide phosphorus is the product. What mass of oxygen is needed to produce 13g of this product?
A small immersion heater is used to heat 475 mL of water from 75 degrees Fahrenheit to 195 degrees fahrenheit in 5.00 minutes.
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