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How do you find the HETP of a fractionating column given the areas after a gas chromatogram were cyclohexane 6286 and toluene 346. with a ratio being of cyclohexane/toluene.
How many grams of oxygen are needed to react completely with 1290 grams of pentanone (C5H10O)?
Calculate the mass of a sample of iron (in kilograms) which contains the same number of atoms as 0.8118 L of mercury metal (density of mercury is 13.534 g/cm3).
A 100 ppm quininesulfate ( MW = 782.97 g/mol) solution was used as the standard. Assuming that your original (undiluted) sample contained 142 ppm of quinine sulfate, calculate the amount in ppm of quinine in the sample.
A 0.150- M solution of chloroacetic acid (HC2H2ClO2) has a pH of 1.86. What is the value of Ka for this acid and the percent ionization?
sample of an oxide of tin was heated in the ari and 2.842 grams of tin (IV) oxide was obtained. What was the formula for the original oxide of tin?
If the average collection period is 55 days, what is the receivables turnover?
A) How many ions will this compound create in aqueous solution ? B) What is the coordination number of chromium ?
Use Le Chatelier's principle to explain the different colors found in the equilibra in Methyl orange
A gas sample containing 1.65 mol at 25°C exerts a pressure of 413 torr. Some gas is added to the same container, and the temperature is increased to 50.°C.
The antibacterial agent sulfamethoxazole is an unionized acid with a pKa of 5.0. What is the ratio of this drug in buffered gastric fluid of pH 3.0. What is the percent ionized to unionized
How many grams of CH4 is needed to produce 49.0 g CHCl3? CH4(g) + 3 Cl2(g)-> CHCl3(g) + 3 HCl(g)
What is the rate constant for the reverse reaction at the same temperature?
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