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a sample of nitrogen gas in a 3.9 L container at a temperature of 47C exerts a pressure of 6.3 atm. Calculate the number of moles in the sample
A new potential heart medicine, code-named X-281, is being tested by a pharmaceutical company, Pharma-pill. As a research technician at Pharma-pill, you are told that X-281 is a monoprotic weak acid,
What volume of hydrogen gas, in liters, is produced by the reaction of 4.71g of iron metal with 60.0mL of 2.03 M HCl?
At what temperature would a 1.80 m NaCl solution freeze, given that the van't Hoff factor for NaCl is 1.9? Kf for water is 1.86 degrees C/m. answer in degrees C
Aqueous solutions of phosphoric acid and sodium nitrite are combined, and the following equilibrium is established. H3PO4 (aq) + NO2- (aq) = H2PO4-(aq) + HNO2 (aq). The equilibrium constant Kc for this reaction is greater than one. Based on this i..
How do we know the oxidation of camphor leads to a different product if they look/smell the same in the end as it did in the beginning?
What mass of potassium bromide residue remains if 500.0 mL of 0.200 M potassium bromide solution are evaporated to dryness?
If the titrant has a molarity of 0.2750 M and there are 25.00 mL of analyte present, what is the molarity of the analyte?
What mass of Ag2CO3(s) in grams is theoretically produced by mixing 125 mL of 0.315 M Na2CO3(aq) and 75.0 mL of 0.155 M AgNO3(aq)?.
How many isomers of dimethylcyclohexanediol could you get from complete hydroboration-oxidation of 1,4-dimethyl-1,4-cyclohexadiene? Draw them all.
Explain why the extrapolated temperature is used to determine the maximum temperature of the mixture rather than the highest record temperature in the experiment.
Draw the enantiomer of cis-1-chloro-3-methylcyclopentane which is R at C-1. 1) What is the configuration of this molecule at C-3 (R and S)?
The vapor pressure of pure ethyl bromide at this temperature is 400.0 torr. Assuming an ideal solution, what is the molecular mass of the compound?
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