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When one mole of C6H6 is burned, 3.27 MJ of heat is produced. When the heat from burning 7.59 g of C6H6 is added to 5.69 kg of water at 21.0°C, what is the final temperature of the water?
How many moles of ammonia are required to react completely with 146 L of oxygen gas according to the following reaction at 0 C and 1 atm
Calculate the pH of the solution made by adding 0.50 mol of HObr in 0.30 mol of KOBr to 1.00 L of water. The value of Ka for HObr is 2.0 * 10^-9
A solution is made by dissolving 25.7 g of NaOH in approximately 450 mL of water in a volumetric flask. The solution becomes quite warm, but after it is allowed to return to room temperature, water is added to total 500 mL of solution
Using the Henderson-Hasselbach equation, calculate the volume of 0.10 M Na2HPO4 and 0.10 M NaH2PO4 that would be required to make 100.0 mL of a 0.10 M (total phosphate concentration i.e. HPO4 + H2PO4) buffer with a pH of 6.91.
molecules can be as small as a few atoms or as large as thousands of atoms. in 1962 max f. perutz and john c. kendrew
Define the possibility of stereoisomers exists, However, the addition of bromine to an equimolar mixture of cis- and trans-2-butene generates only three stereoisomers. Explain.
Acid precipitation is the term generally used to describe rain or snow that is more acidic than normal. One cause of acid precipitation is the formation of sulfuric and nitric acids from various sulfur and nitrgoren oxides produced in volcanic eru..
Find the Anode Half-Reaction, Cathode Half-Reaction and Volts, Lit. of the following cells Ag-Cd, Ag-Cu, Ag-Pb, Ag-Zn, Cd-Cu, Cd-Pb, Cd-Zn, Cu-Pb, Cu-Zn and Pb-Zn
We wish to prepare a buffer of pH 10 using common laboratory reagents. How many mL of 6M HCl would we have to add to a solution prepared by adding 100 mL of 15M NH3 to 200 mL of water?
Problem- A reaction vessel contains 10.0g of CO and 10.0g of O2. How many grams of CO2 could be produced according to the following equation: 2CO + O2- 2CO2
when cooncentrated cacl2 aq is added to na2hpo4 aq a white ppt forms that is 38.7 ca by mass. write a net ionic
Calculate the hydrogen ion concentration for an aqueous solution that has a pH of 3.45.
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