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Jim had a short night, he spent all of it except about 2 hours studying for his chemistry test this morning. As he was brushing his teeth he found that chemistry had over taken his mind. He found himself wondering how many fluoride ions were in the 6.3oz tube of Crest Pro-Health Clean Mint toothpaste he was using. After all his studying, he was confident that he could calculate the number of fluoride ions. Can you? Your assignment is to calculate how many fluoride ions are present in an unopened 6.3 oz tube of Crest Pro-Health.
What is the theoretical yield of acetic acid when 22.5 g of methanol reacts with 32.0 g of carbon monoxide in the following equation: CH3OH + CO --> HC2H3O2
Write the decayreaction for this isotope and explain your prediction in terms of N/Zratio.
a 16 ounce speciality coffee drink contains 254 mg caffeine. if all the caffeine is extracted and dissolved in an equal
when 31 g of phosphorus reacts with oxygen gas 71 g of an oxide of phosphorus is the product. what mass of oxygen gas
The mixture is cooled to the temperature of liquid nitrogen at which ammonia freezes out and the remaining gas is removed from the vessel. Upon warming the vessel to 0.00°C and one atm, the volume is 98.7 cm3
A researcher suspects that the pressure gauge on a 49.9-L gas cylinder containing nitric oxide is broken. An empty gas cylinder weighs 135 lb. The weight of the partially full cylinder is 161.5 lb. This cylinder is located in a relatively chilly s..
A reaction has a rate constant of 0.0686 sec-1; how long will it take (in minutes) until 0.198 mol/L of the compound is left, if there was 0.715 mol/L at the start? (give answer to 3 sig figs using E notation)
Acetone (C3H6O) burns with oxygen producing carbon dioxide and water only. Solid calcium nitrite is decomposed by heating, producing calcium oxide, nitrogen monoxide and nitrogen dioxide
Draw the skeletal structure of the major organic product resulting from the following synthesis steps. Benzyl bromide is reacted with solid Mg in diethyl ether.
the heat capacity for a bomb calorimeter is 10.30kjdegreec.calculate the heat of combustion of one gram of almond
More helium was added to the cylinder and the volume was adjusted so that the gas pressure remained the same. How many grams of helium were added to the cylinder if the volume was changed from 2.00 \rm L to 3.30 L
A solution of 120 mL of 0.150 M KOH is mixed with a solution of 260 mL of 0.200 M NiSO4. How many grams of the precipitate can be formed?
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