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Barium hydroxide, often used to titrate weak organic acids, is obtained as the octahydrate, Ba(OH)2. 8H2O. What mass of Ba(OH)2 . 8H2O would be required to make 500.0ml of a solution that is 0.1500 M in hydroxide ion.
a chemical engineer studying the properties of fuels placed 1.475 g of a hydrocarbon in the bomb of a calorimeter and
Liquid NCl3 in a 2.5 L closed container is heated until it decomposes completely to gaseous products. The resulting mixture exerts a pressure
How many gallons of E25 could be made by dilution. About how many cars does this fill at 13.0 gallons per car
Compute the pH in the titration of 25.0mL of 0.200 M pyridine, C5H5N(aq) after addition of 37.0mL of 0.200 M HBr.
During an experiment, a student adds 1.05 g of calcium metal to 200.0 mL of 0.75 M HCl. The student observes a temperature increase of 17.0 °C for the solution
The decomposition of N2O to N2 and O2 is a first- order reaction. At 730°C the half-life of the reaction is 3.58 3 103 min. If the initial pressure of N2O is 2.10 atm at 730°C, calculate the total gas pressure after one half-life.
The values obtained were 0.207 and 0.900 respectively. Calculate the molar concentrations of the oxidized and reduced forms of the NAD.
The mass of the ice cube is 11.2 g, and its initial temperature is -12.8 °C. The water resulting from the melted ice reaches the temperature of your skin
If 40.0 g of benzene are added 929 g of water. What is the freezing point of the solution in Celsius. (remember your answer should be negative)
What mass of ammonium chloride, NH4Cl, (Ka = 5.6 x 10^-10) must be added to exactly 500mL of 0.10M NH3 solution to give a solution with a pH of 9.00
a 2.50-g sample of a large biomolecule was dissolved in 17.0 g of carbon tetrachloride. the boiling point of this
Show that (∂H/∂P)T = 0 for an ideal gas using thermodynamic relationships and the definition of G
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