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A compound has a specific rotation of -39.0. A solution of the compound (0.206 g/mL) has an observed rotation of -7.17 when placed in a polarimeter tube 10. cm long. What is the percent of each enantiomer in the solution?
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What is the mass of NaOH present in grams, given that a 100. mL solution has a concentration of 0.125 M?
A mass of 8.15 gC 2 H 4 ( g ) reacts with excess oxygen. If 16.2 g CO 2 ( g ) is collected, what is the percent yield of the reaction? C 2 H 4 ( g ) + 3O 2 ( g )® 2CO 2 ( g ) +2H 2 O( g )
Calculate volume in milliliters of a 1.96 mol/L calcium bromide solution that contains 275. mmol of calcium bromide CaBr2. Round your answer to 3 significant digits.
One liter of nitrogen (N 2 ) and one liter of carbondioxide (CO 2 ), initially at one atmosphere pressure, are forcedinto a single evacuated 500 mL vessel. What is the total pressure, in atmospheres,if the temperature re ...
The mass of a sample of CaCO3 is 751 grams How many total atoms are present in this sample?
Nitro glyerine is an explosive used by the mining industry. It detonates according to the following equation: 4C 3 H 5 N 3 O 9 (l)→ 12CO 2 (g) + 6N 2 (g) +10H 2 O(g) + O 2 (g) What volume is occupied by the gases produce ...
If 0.050 mol hydrochloric acid (HCl) is mixed with 0.050 mol of sodium hydroxide (NaOH) in a "coffee cup" calorimeter, calculate the temperature change of 34.6 g of the resulting solution if the specific heat of the solu ...
Question: What is the pH of the solution that results from mixing 10.00ml of 0.050 M perchloric acid with 30.00ml of 0.040 M barium hydroxide
A student finds that the mass of an object is 6.62 kg. She is told that her measurement has an error of 12.3%. What is the true mass (in kg) of the object?
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