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A student titrated 10mL aliquots of her unknown amino acid solution with standard 0.1521M NaOH and with 0.0986M HCl. Inflection points were determined in the graphs after 18.62mL of NaOH and after 3.29mL of HCl was added. What's the concentration of the amino acid?
what is the percent yield of CCl4 if 719 kg is produces from the reaction of 410. kg of CS2
A bicycle tire is filled with air to a pressure of 75. psi at a temperature of 19 degrees celcius. Riding the bike on asphalt on a hot day increases the temperature of the tire to 58 degrees celcius. The volume of the tire increases by 4.0%. What ..
calculate the ph resulting from mixing 15.00 ml of 0.800 m hio3 pka 0.77 with 45.00 ml of 0.0200 m
a urine sample contains 46.5mgl-1 of ethanol. the density of ethanol is 0.79gcm-3. what is the concentration expressed
calculate the entropy change when argon at 25 degc and 1.00 bar in a container of volume 0.500 dm3 is allowed to expand
Aluminum dissolves in HCL according to the equation written below, whereas copper does not react with HCL: 2Al+6HCL ---> 2AlCl3 + 3H2 a 35 gram sample of copper-aluminum alloy is dropped into .750 L of 3M HCl
an aerosol spray can with a volume of 270 ml contains 3.2 g of propane gas propellant. what is the pressure in the can at 20 c.
What will the following peptides look like structurally at pH 1, pH 7, pH 12. (You will draw 3 structures for each.)
the enthalpy change for melting ice at 0degc and constant atmospheric pressure is 6.01 kjmol. calculate the quantity of
Which of the following proceeds with syn addition a. Hydroboration of an alkene b. hydrobromination of an alkene c. radical bromination of an alkane d. contra-Markovnikof hydrobromination of an alkene with dialkyl peroxide initiation e. epoxidatio..
What mass of C2H5OH should be added to 535 kg of the paraffin in formulating the mixture if the vapor pressure of ethanol at 35°C over the mixture is to be 8 torr? The vapor pressure of pure ethanol at 35°C is 100 torr.
Calculate the value of E°cell for a voltaic cell described in each of the following. Enter your answer with 3 significant digits. Enter scientific notation as 1.23E4.
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