How much boiling water would you need
How much boiling water would you need in order to raise the bath to body temperature (about 37)? Assume that no heat is transferred to the surrounding environment.
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A student weighs 0.2254g of sodium chloride for chloridedetermination. Calculate the millimoles of silver nitrate requiredto precipitate the chloride. Then estimate the volume of 0.1 Msilver nitrate solution that will be needed to precipitate the
Describe what is meant by part per million and part per billion. Compare and contrast the normal definition when referring to a liquid and gas?
Adding excess potassium hydroxide to an aluminum hydroxideprecipitate causes the precipitate to dissolve. Write an equationto describe the reaction.
Question: He and O2 gases are mixed. A 40L He cylinder with 10atm pressure is connected to a 10 L O2 cylinder with 5atm pressure. The valve between them is opened and the gases completely mix. What is the mole fraction of O2?
Hemoglobin contains 0.33% Fe by mass. A 0.200 g of sample is dissolved in water to give 10.0ml of solution, which has an osmotic pressure of 5.5 torr at 25.0 degree celsius. How many moles of Fe atoms are present in one mole of hemoglobin.
Exactly what weight of dry ice is needed to react with 2mmol of phenylmagnesium bromide? Would an excess of dry ice beharmful?
The equilibrium constant Kc for the reaction: has the valueof 4.00 at 500K. If a mixture of 1.00 mol CO and 1.00 mol H2Ois allowed to reach equilibrium at this temperature in a 1.00Lflask, calculate the equilibrium concentrations of each species i
A gaseous mixture consists of 80.0 mole percent N2 and 20.0 mole percent 02. Suppose water is saturated with the gas mixture at 25 c and 1 atm total pressure, and then the gas is expelled from the water by heating.
The efficiency of a Carnot engine is 27%. The engine absorbs 795 J of heat per cycle from a hot reservoir at 499 K. Determine the heat expelled per cycle and the temperature of the cold reservoir.
The concentration of iodine in sea water is 60. parts per billion by mass. If one assumes that the iodine exists in the form of iodide anions, what is the molarity of iodide in sea water?
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