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Calculate the amount of water in liters that would have to be vaporized at 40 C (approximately body temperature) to expend the 2.5 x 10^6 calories of heat generated by a person in one day (commonly called sweating). The heat of vaporization of water at this temperature is 574 cal/g.
A method of preparing a very pure alkane is to react the corresponding alkyl magnesium halid (grignard reagent) with water and collect the alkane product.
The Calfhead stream (flow rate 0.05m3s-1) discharges into the Oxhead river (flow of 3.00 m3.s-1). It is proposed to discharge waste into the Calfhead stream but the EPA requires a stream mixing study be undertaken.
if the empty cylinder has the mass of 94.2g and the cylinder with water has the mass of 138.7 g what is the mass of water, volume of water and the density of water.
The empirical formula of a compound is found to be P2O5. Experiments show that the molar mass of the compound is 560g/mol. What is the molecular formula of the compound?
what is the pH of a buffered sysem made by dissolving 17.42 g of KH2PO4 and 20.41 g of K2HPO4 in water to give a volume of 200.0 mL
Calculate the mass of propylene glycol ({rm{C}}_3 {rm{H}}_8 {rm{O}}_2 ) that must be added to 0.340 kg of water to reduce the vapor pressure by 2.86 torr at 40 ^circ ,{rm C} (P_{{rm H}_2{rm O}} at 40 ^circ,{rm C} = 55.3;{rm torr}).
If you were to combine a 200.0mL aqueous solution of 0.75M NaHCO3 with 200.0mL of 0.50M CaCl2 in a constant pressure calorimeter, what change in temperature would you measure?
a rigid ball contain 25.0 liters of air at 22 degree Celsius and 6.25atm pressure was placed in an oven at a temp of 100degree what was the new pressure inside the ball.
If someone can go in depth into finding the Ka to this and then guiding me through the rest of the steps, I'd be eternally grateful
What is the pH change of a 0.300 M solution of citric acid (pKa=4.77) if citrate is added to a concentration of 0.140 M with no change in volume?
12.5 g of KCl (MM = 74.55 g/mol) is dissolved in enough water to make 675 mL of solution. Calculate the molarity of the KCl solution.
What is the wavelength of the photons emitted by hydrogen atoms when they undergo n=4 to n=2 transitions in nm?
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