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Throughout the addition of bromine to trans-cinnamic acid, the following amounts were used: 10.0 mmol trans-cinnamic acid, 6.0 ml glacial acid, and 10 ml 1.0 M solution of bromine in acetic acid.
Presume only use half the amount of bromine solution givenThree gases 8.00g of methane, 18.0g of ethane and an unknown amount of propane, were added to the same 10.0-L container. At 23.0 C the total pressure in the container is 4.90. Define what is the partial pressure of each?
What mass of sodium formate must be added to 400.0 mL of 1.00 M formic acid to produce a buffer solution that has a pH of 3.50
The molar heat capacity of silver is 25.35 . How much energy would it take to raise the temperature of 10.2 of silver by 19.6? With these numbers, what is the specific heat of silver
At what temperature is the change in entropy for the reaction equal to the change in entropy for the surroundings?
How many liters of liquid nitrogen are produced when 982.0 L of nitrogen gas is liquefied at 77.36K?
A white solid is either NaI or NaNO3. If an aqueous solution of the solid is prepared, the addition of which reagent will allow you to distinguish between the two compounds
A gas has a percent composition by mass of 75.7% carbon and 14.3% hydrogen. At STP the density of the gas is 2.50 g/L. What is the molecular formula of the gas
a 10.0 ml sample of vinegar an aqueous solution of acetic acid is titrated with 0.5062 m naoh and 16.58 ml is required
A sample of air was compressed to a volume of 27.0 L. The temperature was 297.0 K, and the pressure was 8.70 atm. How many moles of gas were in the sample. Enter units.
The electrolysis of molten A12O3 at 980 ºC is used to produce metallic aluminum. A current of 658 A is used in the electrolysis cell. What is the rate of formation of aluminum, in kilograms per hour
Pure olive oil has an iodine value of about 85. A very old sample or originally pure olive oil is found to have an iodine value of 55. Explain
The soution in contact with the graphite electrode consists of dissolved Sn(NO3)2. The solution in contact with the copper electrode consists of dissolved CuNO3.
Two determinations of the dissolved oxygen content of a 200 mL sample of water, made five days apart, gave 5.3 ppm and 2.2 ppm of dissolved O2 respectively.
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