Determining the heat capacity
The molar heat capacity of a gas at constant pressure is 18.7J mol-1 K-1. What is the heat capacity of 9.4 moles of this gas at constant volume?
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The molarity of 25% ammonium, hydroxide is 13.4 M. Both are sold in 2.5 L bottles. If there were an accident and the two bottles broke and the acid and base mixed, how much heat would evolve?
A 54.9 g sample of the compound X2O7 contains 33.6 g of oxygen atoms. What is the molar mass of element X
In developing the melting point of a compound, if the heating is carried out too fast, would the observed melting point be higher or lower and why?
The specific heat of toluene, C7H8, is 1.13 J/g K. How many joules of heat are needed to raise the temperature of 50.0 g of toluene from 12.0°C to 30°C?
calculate the pH OF 100.0 mL of a bufer that is 0.050 M NH4Cl and 0.110 M NH3 before and after the addition of 1.00 mL of 5.75 M HNO3. before=9.59 after=
Where is C P-450 located and what is their main function in xenobiotics transformation. What is the reaction catalized.
If the unit of measurement were changed to grams of cholesterol per milliliter of blood, what would a cholesterol reading of 185 kg/dl translate to?
Calculate the work (in kJ) when 1.70 moles of hydrogen gas are produced from the reaction of sodium in excess water at 298 K
Suppose you inject 25.0 mL of air into a vessel at 22.0 C, which causes the pressure in the vessel to change by 0.30 atm. How many moles of gas molecules caused this change?
Briefly explain the circumstances under which a mixed solvent recrystallization method would be used to recrystallize a given compound.
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