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If 3.8 kcal is released by combustion of each gram of glucose, how many kcal are released by the combustion of 1.5 mol of glucose?
what are the expected impurities in acetophenetidin synthesis?
What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.154 M in sodium chloride and 0.030 M in magnesium sulfate. Assume complete dissociation for electrolytes.
Suppose that excess Cu(s) is added to 1.0 L of 0.015 mol L^-1 Fe(NO3)3(aq), with no change in volume. What is the equilibrium concentration of Fe3+. Justify any approximations you make.
a.the density of liquid oxygen at its boiling point is 1.14 and its heat of vaporization is 213.nbsphow much energy in
a) What is the mo;ar mass of the gas b) If the unknown gas is composed of 2.78 g of carbon and the rest is hydrogen, what is its molecular formula
A sample of oxygen gas has a volume of 3.34l at 21 c . what volume will it occupy at 144 F if the pressure and number of mol are constant
A dioxin-contaminated water source contains 0.081% dioxin by mass. How much dioxin is present in 4.2 L of this water? (Assume that the density of the solution is 1.01 g/mL.)
To prevent tank rupture during deep-space travel, an engineering team is studying the effect of temperature on gases confined to small volumes. What is the pressure of 3.20mol of gas measured at 251 degrees Celcius in a 1.75-L container assuming r..
When a 0.6333-g sample of a compound of carbon, hydrogen and sulfur was burned in excess oxygen, 0.9272 g CO2, 0.3795 g H2O and 0.6749 g SO2 were obtained. In a separate experiment, it was found that, for fixed temperature and pressure
What observed rotation is expected when a 1.02 M solution of (R)-2-butanol is mixed with an equal volume of a 0.510 M solution of racemic 2-butanol
If solar radiation is 1010 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 for solar radiation.
A titanium rod of length 10 cm and circular diameter of 2 cm is pulled in tension with a load of 100000 N. The rod elongates by 0.01 cm under the load but recovers to its original length when the load is released.
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