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The enthalpy of combustion for propane is -2044 kJ/mol. How many liters of propane (at STP) must be burned in order to convert 400 grams of ice initially at -9°C to liquid water at 84°C?
A 97 gram solution of silver nitrate contains 14 grams of AgNO3. What is the percent by mass of silver nitrate in this solution?
Calculate the total heat in joules needed to convert 25.00 g of ice at -3.50 degrees c to liquid water at 0.250 degrees c.
Calculate the statistical mechanical values of Internal Energy, Entropy, Gibbs Energy, Enthalpy and Cvm for H2 (g) at 3000 K.
Describe in 75 words the structure of the carbon atom. What types of bonds does carbon form and why?
What are the pH and alkalinity of these three solutions immediately after you make them
Molten AlCl3 is electrolyzed for 5 hours with a current of 0.40 ampere. Metallic aluminum is produced at one electrode and chlorine gas, Cl2, is produced at the other.
A quantity of 7.48g of a compound is dissolved in water to make 300 mL of solution. The solution has an osmotic pressure of 1.43 atm at 27 Celsius. Calculate the molecular weight of the compound.
Calculate the composition of the following two buffer solutions. Each buffer is to begin with 0.10M ethanolamine (pka 9.50) and is also to contain acetic acid (pka 4.76). One buffer (buffer A) is to be PH 5.00, the other buffer (Buffer B) 9.26.
1. what is the molality of a solution that contains 3.0g urea molecular weight 60 amu in 100g of benzene?2. calculate
How would you write the Sn2 mechanism of sodium chlorophenolate with sodium chloroacetate?
Determine whether each compound is an Oxide, Peroxide, Superoxide, or something else: Na2O, BeO2, Rb2O2, Ba(O2)2, SrO. Determine whether each oxide would be Acidic, Basic, or Amphoteric: BaO, Cl2O7, Li2O, Al2O3, SO2.
Calculate the volume of dry CO2 produced at body temperature (37 degrees Celcius) and 0.970 atm when 24.5g of glucose is consumed in this reaction.
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