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if 625g of fe3o4 is produced in the reaction, how many molecules of hydrogen are produced at the same time?
Calculate the basic buffer capacity of a solution of 50.00 mL of 0.334 M HC2H3O2 to which is added 50.00 mL of 0.154
What is the molecular weight of a gas if a 21.0 g sample has a pressure of 836 mm Hg at 25.0 C in a 2.00 L flask?
Draw a doagram to show the changes in potential energy that occur from the rotation around the C1-C2 bond of 1-bromopropane.
0.10 mol of argon gas is admitted to an evacuated 50cm^3 container at 20C. The gas then undergoes an isobaric heating to a temperature of 300C.
Super-green is an indicator with a Ka of 1.6 × 10-7. The acid form is yellow and the base form is blue. Awesome-orange is an indicator with a Ka of 5.0 × 10-5.
Standard Temperature and Pressure of Chlorine, Chlorine is widely used to purify municipal water supplies and to treat swimming pool waters. Suppose that the volume of a particular sample of Cl2 gas is 8.70 L at 895 torr and 240C.
How many grams of phthalic acid o-C6H4(COOH)2 would be neutralized in 16.2 ml of a 0.100N NaOH solution?
How much energy (in kilojoules) is required to convert 225 mL of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 g/mL?
A procedure called coulogravimetric analysis combines a weight determination with a measurement of the quantity of electricity in a controlled-potential electrolysis to analyze bromide-chloride mixtures
Dehydrohalogenation Prepare styrene (C6H5CH=CH2) by dehydrohalogenation of either 1-bromo-2-phenylethane or 1-bromo-1phenylethane using KOH in ethanol.
when 31g of phosphorus reacts with oxygen, 71g of an oxide phosphorus is the product. What mass of oxygen is needed to produce 13g of this product?
In a coffee-cup calorimeter, 1.50 g of NH4NO3 is mixed with 76.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.65°C.
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