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How much heat energy is needed to raise the temperature of a 0.50 L of ethanol (d = 0.79 g/mL) from 20.0°C to 50.0°C? Specific heat capacity of ethyl alcohol = 2.45 J/g°C
What is the specific heat of a substance that it takes 192 Joules to raise the temperature of 45 grams by 6 degrees Celsius
calculate how many moles of nh3 form when each quantity of reactant completely reacts.3n2h4 l 4nh3 g n2 g2.6 mole
The total pressure of 75.0g Ar and 75.0g Rn is 2.30atm. What is the partial pressure (in atm) of Rn?
Empirical formula Pt(NH3)2Cl3. Sketch at least four isomers which correspond with the given empirical formula and have a molecular mass of 670 g/mol. What are some of these isomers and in a complex ion, can a chlorine atom be bonded to two other a..
When 0.549 moles of a certain gas fill a balloon the volume is 75 mL. If enough of the same gas is added to the balloon until 1.44 moles of gas are present, what is the new volume of the balloon?
what is the composition of vapor of a pentane-hexane solution that has a vapor pressure of 373 torr at 25 degree celcius? Given is Pure Hexanes and pentanes vapor pressure at 25 degrees celcius. Pentane - 511 torr. Hexane -150 torr.
Which one of the following salts, when dissolved in water, produces the solution with the highest pH. and WHY. KCl, KF, KI, KBr
what is the pressure in atmospheres in a container of gas connected to a mercury-filled open-end manometer if the level
What is the minimum mass of ethylene glycol (C2H6O2) that must be dissolved in 14.5 kg of water to prevent the solution from freezing at -15.2 F
the mass spectrum of an unknown ketone showed the molecular ion peak at mz 86. the relative abundances of the m to the
The biggest problem I'm running into is how to complete the ICE chart for the columns Change and Revised Equilibrium. I don't know where those numbers come from.
At volume of 0.200 M K2Cr2O7 will be required to oxidize the Fe2+ iron in 60.0 mL of .200 M FeSO4 solution?
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