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The density of a gas is 3.48 g/L at STP. What is its molecular weight? Select one: a. 44.6 g/mol b. 147 g/mol c. 32.0 g/mol d. 224 g/mol e. 78.0 g/mol
What is the buffer component ratio, ([BrO-]/[HBrO]) of a bromate buffer that has a pH of 7.88. Ka of HBrO is 2.3 x 10-9
Assume equilibrium with the calcium carbonate in the sediment and calculate the concentration of calcium ion (in mg/L -1) in the water (25C).
1. what are the average calories not calories per gram for each of your food items?2. use the nutritional information
Borane forms complexes with sulfides and amines. Draw a suitable structure to represent the complex formed between BH3 and dimethyl sulfide
She records the final temperature of the water as 317K. What is the value of Ccal (calorimeter constant) for the calorimeter.
A colorless liquid A (C3H6O) was soluble in water and ether, and had a boiling point of 94-96 degrees Celsius. It decolorized a Br2-CH2Cl2 solution and gave a positive ceric nitrate test
A balloon contains 0.120 of gas and has a volume of 2.83 .If an additional 7.2×10?2 of gas is added to the balloon, what will its final volume be
The structure of HxWO3 could contain H+ ions or OH- ions. Which do you think is more likely? Why?
How many grams of N2 are required to react with 2.30 moles of Mg in the following process?
Extract a solute from 100 mL of water using only 300 mL of ether. The partition coefficient between ether and water is 3.0. Calculate q, the fraction of solute that would remain in the water under each of the following extraction conditions
what is the percent yield of a reaction in which 244 g phosphorus trichloride reacts with excess water to form 144 g
Draw a structure containing only carbon and hydrogen that is a chiral alkyne with six carbon atoms.
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