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how much energy is required to heat an iron nail with a mass of 7g from 25 degrees celcius until it becomes red hot at 750 degrees celcius?
what is the volume of 1 mole of Helium gas when the pressure is 1.47 atm and the temperature is 287 K.
calculate the average moles of ascobic acid in the pipetted sample used for titration d)Calculate the average moles of ascobic acid in the crushed tablet.
What is the theoretical yield of chromium that can be produced by the reaction of 40.0 g of Cr2O3 with 8.00 g of aluminum according to the following equation?
What is numerical value of the equilibrium constant for the reverse reaction?
if a raindrop weighs 65 mg on average and 5.1x10^5 raindrops fall on a lawn every minute what mass in kg of rain falls in 1.5 hours
equilibrium constant, Kp, for the reaction = 0.295 (at 400 degrees C.)then write the kp of the reaction and Calculate kc at 400 degree Celsius.
pKa of a carboxylic acid group found on a molecule of DOM is 4.2 and pKa of An amino group found on a molecule of DOM is 9.3. Explain how pH influences the ability of these groups to bind to metals. Illustrate how well each of these groups would b..
Total pressure in kPa 10 seconds after initiation of the reaction if initially there was 88.3kPa of pure N 2 O 5 vapor Enter the total pressure in kPa 10 minutes after initiation of the reaction.
Calculate the density of hydrogen bromide gas (in g/L) at 733 mm Hg and 47 degrees Celsius
Consider the following reaction: 3CaCO3 + 2FePO4 = Ca3(PO4)2 + Fe2(CO3)3 a) which of the following reagents is the limiting reagent?
Calculate the value of delta S when 1.85 mol CH3OH (l) of is vaporized at 64.7 C. The normal boiling point of methanol is 64.7 C.
If a 189-mg piece of gold (density = 19.32 g/cm3) is hammered into a sheet measuring 2.4 ft 1.0 ft, what is the average thickness of the sheet in meters?
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