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How many mL of 0.150 M NaOH are needed to neutralize 50.00 mL of a 0.120 M solution of H2SO4?
tincture of iodine is i2s dissolved in ethanol c2h2oh. a 1 solution of tincture of iodine is 10.0g of solute for 1000g
Half-life equation for first-order reactions: where is the half-life in seconds , and is the rate constant in inverse seconds . Part A What is the half-life of a first-order reaction with a rate constant
In the work-up procedure the reaction mixture is neutralized with NaOH (aq) and then extracted twice with diethyl ether. Explain why this is done. This was for an OChem Menthone lab.
A coffee-cup calorimeter contains 150.0g of water at 25.1C. A 121g block of copper metal is heated to 100.4C by putting it in a beaker of boiling water.
Why would you reflux any reaction. Why wouldn't you simply boil the reaction in a erlymeyer flask
calculate the final pressure, as well as q, w, ?U, and ?H. the gas is expanded isothermally and reversibly until the volume doubles
If solar radiation is 1200 W/m^2 , how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 for solar radiation. A green leaf has a surface area of 2.15 cm^2.
Determine the mass of carbon dioxide produced when .85 grams of butane reacts with oxygen according to the following equation : 2C4 H10 + 13O2 ->8CO2 + 10H2O
determine the molar mass of the substance if 120.0 grams of a pure sample contained 24.0 mol of the substance. express
When the elements below are burned, they emit light of a specific wavelength, listed below. Calculate the frequency for each and determine whether the light emitted is visible, UV, infrared, etc.
which of the following is NOT a vitamin that is used by cells to produce a cofactor requires by alpa-ketogluterate dehydrogenase
The results of four replicate measurements were 5.4, 5.2, 5.5, and 5.2 m. Measurements were also made of the height of the tank, yielding 9.9, 9.8, and 9.6 m. Calculate the volume of the tank and the uncertainty in that volume.
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