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specific brand of gourmet chocolate candy contains 7.00 rm g of dietary fat in each 22.7-rm g piece. How many kilograms of dietary fat are in a box containing 4.00 lb of candy?
The mass of the sample before heating was 3.327g and after heating the mass was 2.432g. What is the percent composition of sodium carbonate in the original mixture?
The pH in the stomach of a certain animal is 3.8. This means that the hydrogen ion concentration in the stomach
The combustion of butane produces heat according to the equation 2C4H10(g) + 13O2(g) -> 8CO2(g) + 10H2O(l) ->H°rxn = -5,314 kJ/mol What is the heat of combustion per gram of butane
Given the following two solutions: 0.200 M HC2H3O2(aq) with pKa = 4.76 0.200M NaOH(aq) A mixture is made using 50.0 mL of the HC2H3O2 and 25.0 mL of the NaOH. What is its pH?
What volume will nitrogen gas occupy if the pressure is increased to 894 torr at constant temperature?
If you take a 10.0-mL portion of the stock solution and dilute it to a total volume of 0.230 L, what will be the concentration of the final solution?
How many grams of cisplatin are formed from 54.4g of K2PtCl4 and 36.4g of NH3 if the reaction takes place in 95% yield based on the limiting reactant.
A gas has a volume of 150 ml when its pressure is 0.947 atm. What will the volume of the gas be at a pressure of .987 atm, if the temperature remains constant
A nugget of pure gold of 4.80 grams absorbed heat of 283 Joules. if the temperature was 23.0°C initially then determine what was the final temperature of the Au gold it is given that the specific heat of Au= 0.129 J/(g·°C).
Determine the theatrical yield if 1.56 grams of hydrogen is permitted to combines with 9.70 grams of nitrogen producing 1.43 grams of ammonia?
At a certain temperature and pressure 2.8 L of N2 reacts with 4.2 L of O2. If all the N2 and O2 are consumed, what volume of N2O3, at the same temperature and pressure, will be produced
If a buffer solution is 0.260M in a weak base (Kb=5.6x10^-5) and 0.550M in its conjugate acid, what is the pH.
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