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Aspartame (C14H18N2O5) is a solid used as an artificial sweetener. Its combustion produces carbon dioxide gas, liquid water, and nitrogen gas. What is the coefficient of aspartame in the balanced equation for the reaction?
If you weigh .25g of an antacid tablet that weighs 1.42g, what percentage of the tablet have you used? If the tablet contains 250 mg of CaCO3, what mass of CaCO3 do you have in your measured portion
How many stereogenic centers are there in 1,1,2,3-tetramethylcyclohexane? a) 1 b) 2 c) 3 d) 4
Draw the Lewis structure for each of the following molecules or ions, and predict their electron-domain and molecular geometries.
How many grams of NaCl would be needed to make 1.5 liters of a solution containing 200mEq of Cl-/liter? 2. How many grams of CaCl2 would be needed to make 0.5 liters of a solution containing 150mEg of Cl-/liter
What volume in milliliters of a 0.0992 M NaOH solution is required to reach the endpoint in the complete titration of a 15.0 mL sample of 0.107 M H3PO4?
what is the pressure exerted onto the closed end of an apparatus if the atmospheric pressure is 720 torr and the height of the water is 22.3 cm.
the solubility of o2g in water is 4.43 mg of o2100g h2o at 20oc and 1 atm pressure. what pressure of o2g would be
Suppose that 2.00mL of isopently alcohol was reacted with excess acetic acid and that 2.00g of isopentyl acetate was obtained as product. Calculate the percentage yield.
considering the given chemical reaction and given information about the reaction asnbsp3 ag bg rarr 2 cg dl where
a sample of 34.0 grams of nitrogen gas reacts with an excess of hydrogen gas to give an actual yield of 4.75 grams
a solution is prepared by mixing 55.0 ml of 0.015 m bacl2 and 150. ml of 0.045 m k2so4. what are the concentrations of
Bovine Serum Albunim (BSA) You need to make 100 ml of 2mg/ml BSA. Describe how you would dilute the stock solution to make this
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