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Explain A 5.58-g sample of graphite was heated with 70.0 g of O2 in an 8.00 L flask. Subsequent to the reaction was complete the temperature in the flask was 182 degrees Celsius. What was the total pressure inside the flask?
A gas mixture of N2 and CO2 has a total pressure of 8.00 atm and contains 12.5 mol of gas. If the partial pressure of N2 is 3.69 atm, how many moles of CO2 are in the mixture
how many grams of formic acid hcooh must be added to 0.300 l of 0.110 m sodium formate hcoona to yield a buffer
Calculate the pH of a buffer solution made by adding 10.0 g of anhydrous sodium acetate (NaC2H3O2) to 100mL of 0.100 M acetic acid (HC2H3O2).
a 36 gram sample of copper at 99.8 c is dropped into a beaker containing 207 grams of water at 18.5 c. what is the
sample of sodium reacts with 0.497 kg of chlorine forming 819 g of sodium chloride, what mass of sodium reacted
Using the concentration of CH3COOH (0.8326M) and the equilibrium concentration of H3O+ (OJ = 31.6x10^-6 and milk = 3.16x10^-8), complete the reaction table for vinegar. Then calculate the acidity constant. Please show all work in solving the probl..
The mass of a single copper atom is 1.06E-22 grams. How many copper atoms would there be in 318 milligrams of copper?
Explain clearly the properties of agood freezing agent basing the explanation vant hoffs factor and on colligative property.
Anhydrous, primary standard sodium thiosulfate can be prepared from the pentahydrate, Na2S2O3 5H2O. How many grams of primary standard should be dissolved in 500.0 mL of water to make a 0.040 M solution
Compute the band gap for this semiconductor material after Consideing an intrinsic semiconductor with a conductivity σ that triples between the temperature 27 degree Celsius and 57 degree celsius.
Write the Bronsted-Lowry chemical equation describing how C2H5NH2 behaves when add to water. Indicate whether C2H5NH2 behaves as an acid or a base
why is the voltage reading different for deionized water vs. tap water. what substances are added to drinking water to make it safe.
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