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When you lower the pH of a solution containing aqueous sodium benzoate, a precipitate eventually forms. (a) what will happen if you then raise th pH by adding aqueous NaOH? Why will this happen? (b) Write a balanced equation for the proton-transfer reaction involved and label the stronger acid, stronger base, weaker acid, weaker base.
What is the volume of ammonia gas, measured at 489.9mmHg and 37.4oC, is required to produce 8.41g of ammonium sulfate according to the following balanced chemical equation
A car travels at 58.0 miles per hour and gets 10.0 kilometers per liter of gasoline. How many gallons of gasoline are needed for a 1.00 hour trip.
How many grams of caffeine (C8H10N4O2) are present in one cup of coffee that contains 8.98 × 1021 caffeine molecules?
What is the ratio of the enantiomeric products? b) What name is given to a mixture of enantiomers present in the ratio determined in part (a)?
an elemental has a mass of 10.3 grams. if the volume is 58.4 liters and the pressure is 758torrs at a temperature of
If 25.0g of sodium peroxide(Na2O2, MW = 78.0g/mol) is reacted with 12.1g of water (H2O, MW = 18.0 g/mol) according to the following thermochemical equation: What quantity of heat is released?
Calculate OH- for each of the following solutions, and indicate whether the solution is acidic, basic, or neutral. h+ = 2.7×10?3.
The mass of purified sample of impure benzoic acid was .630g. How would I find the percentage recovery of my impure benzoic acid? And are the numbers I got in the lab reasonably correct?
Explain why, in the 1H NMR spectrum of the product, the peak at 2.40 ppm has three times the integral value of all of the other peaks in the spectrum
what is the concentration of sodium ions in the resulting solution?
Ice cream mix containing 40% total solids is frozen so that half of the original water is made into ice (which is effectively pure water). If the mix contained 12% fat, 16% sugar, and 12% nonfat milk solids
90.0 of is initially at room temperature (22.0). A chilled steel rod at 2.0 is placed in the water. If the final temperature of the system is 21.5.
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