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How many grams of F2 must react with NaCl in the following reaction if 800 kJ of energy are released? 2NaCl + F2 --> 2NaF + Cl2, ?H = -320 kJ
A. 47.5B. 95.0C. 40.0D. 125E. 190
calculate the amount of energy present in the following photons and find the region of electromagnetic spectrum for
What must be the initial temperature of 22g of steam that is mixed with 90g of water at 68 degree celcius in an adiabatic calorimeter with a heat capacity of zero and that produces
the vapor pressure of a liquid at 25c is 200 torr. what will happen when the barometric pressure pbar is lowered to 190
The equation below describes the combustion of propane. C3H8(g) + 5O2(g) ? 3CO2(g) + 4H2O (l) a.In the presence of excess oxygen, how many g of CO2 are formed if 322 g of propane are consumed
Give the x value followed by the y value, separated by a comma. Express your answer in the form x,y
a sample of gaseous SiH4 weighing 0.425g is placed in a 580 mL container. The resulting pressure is 0.61 atm.What is the temperature in degree celsius.
a 255-ml flask contains pure helium at a pressure of 745 torr. a second flask with a volume of 455 ml contains pure
Calculate the correct volume of sulfuric acid which will need to be added to neutrallize the base. The chemical reaction involves Al(OH)3 and Fe2O3 reacting with KOH and H2SO4 with the end product being KAL(SO4)2*12H2O.
what will be the volume of the blimp at a height of 2300 m, where the temperature is 12°C?
The amount of nut burned was 0.9905g. How many of these nuts would a 64kg person have to eat to obtain enough energy to bike (racing)for 30min? The amount of bicycling (racing) is 0.127
Which atom in each of the following pairs has a larger radius. (a) Na or K (b) V or Ta (c) V or Zn (d) Li or Ba
A solution of NaOH with pH 13.68 requires 35.00 ml of 0.128 M HClO4 to reach the equivalence point. What is the volume of the NaOH solution
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