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Calculate the number of kilograms of helium needed to inflate a balloon to a volume of 100,000 L at an atmospheric pressure of 250 mmHg and a temperature of -35 °C.
What is the value of the equilibrium constant for the reaction between I2 (s) and Br- (aq) at 25 degrees celcius?
Estimate the value of the equilibrium constant at 625 {rm K} for each of the following reactions. Delta H{^{circ}_{rm f}} and S{^{circ}} for rm BrCl(g) is 14.6 {rm kJ/mol} and 240.0 frac {rm J}{rm mol cdot K}, respectively.
Ammonia rapidly reacts with Hydrogen Chloride, making ammonium chloride. Calculate the number of grams of excess reactant when 3.80g of NH3 reacts with 4.20g of HCl
what mass of water could be heated by burning 1g of paraffin wax from 0 degrees celcious to 37 degrees celious when teh
if 1 mole of a van der waals gas for which it might be shown that nbspspread out is o thermally from a volume of two
How many grams of CaCl2 would be required to produce a 3.5 M (molar) solution with a volume of 2.0 L.
it was necessary to measure the volume of the sample. The diameter of the cylinder was 23.0 mm and the length of the cylinder was 38.9 mm. What was the volume of the aluminum cylinder in cm3?
Could you please show the reaction in six steps with the curved arrow mechanism, show all the lone pairs,complete the structure of sulfuric acid or the hydrosulfate ion as necessary and complete each organic framework. Don't include the water.
Which one of the following is a poor aprotic solvent for an SN2 reaction? A) CH3SOCH3 (DMSO) B) CH3OH C) C6H6 D) CH3COOH E) CH3CN
If a buffer solution is 0.440 M in a weak acid (Ka = 1.0 × 10-6) and 0.230 M in its conjugate base, what is the pH?
an 8 g sample of a copper ore was dissolved in an acid solution and then reacted with NO3- from a KNO3 salt solution. it required 71.5 ml of a .155 M KNO3 solution to fully react the copper in the ore sample.
A 75.0-mL volume of 0.200 M NH3(Kb=1.8*10^-5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 25.0 mL of HNO3.
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