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Problem- Consider the electrolysis of molten barium chloride, BaCl2. How many grams of barium metal can be produced by supplying 0.50 A for 30 min?
Kindly Please put your best effort to provide the solution of above problem
What molarity of aqueous aluminum sulfate solution can be expected to show the same conductivity as 0.015 M Na2SO4 at 18,000 units?
Calculate the mass of CuS produced and the concentration of H+ ion produced by bubbling H2S into 1.00 L of 0.10 M CuCl(aq) solution.
A gas mixture contains H2 at 2/3 bar and O2 at 1/b bar at 298 K. The diameters of H2 is 0.272 nm and O2 is 0.360 nm. What is the collision frequency \(Z_{12}\) of a hydrogen molecule colliding with oxygen molecule
Problem- A sample of starch is hydrolyzed for some unknown length of time. It gives a negative iodine test and a negative Benedict's test. How hydrolyzed is this sample (in terms of the fragment size or number of glucose units still connected)?
Calculate the pH of a sodium cyanide solution that is 0.37M NaCN. The Ka for hydrocyanic acid HCN is 4.00E-10.
Phosphate systems form essential buffers in organisms. Calculate the pH of a buffer made by dissolving .8 mol of NaOH in .50 L of 1.0 M H3PO4
She pours a 50.0 mL sample of water at 345 K into the calorimeter containing a 50.0 mL sample of water at 298 K. She carefully records the final temperature of the water as 317 K. What is the value of Ccal for the calorimeter?
The ethylenediaminetetraacetate ion, H2Y 2-, forms a strong complex with the calcium ion. How does the addition of the H2Y 2- affect the molar solubility of Ca(OH)2? Explain.
finds the antilog ratio of acid and base and determines that for every 1ml of acid she needs 2.29 ml of acid. what is the final concentration in molarity of the sodium acetate and the acetic acid?
the most common buffer in mammalian tissue culture is aphosphate buffer. the three pkas of phosphoric acid are 2.167.21
Suppose that the molar concentrations for CO and H2 at equilibrium are [CO] = 0.05 and H2= 0.08 . Use the formula CH3OH= Kc[CO][H2]^2 to calculate the concentration of CH3OH.
what is the density of a block of marble that occupies 285 centimeters cubed and has a mass of 636 grams? answer in units of g/centimeters cubed.
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