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The pH of a bicarbonate-carbonic acid buffer is 7.80. Calculate the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3-).
What mass of chromium could be deposited by electrolysis of an aqueous solution of Cr2(SO4)3 for 155 min using a constant current of 15.0 A? (F = 96485 C/mol)
Indicate the concentration of each of ion present in the solution formed by mixing
Sodium Carbonate (NaCO3) is available in very pure form and can be used to standardize acid solutions. What is the molarity of the HCl solution if 25.3 mL of the solution is required to react with 0.256 g of Na2Co3
Complete and balance the equation for this reaction in basic solution. Phases are optional.
what is the hybridization of phosphorus in the phosphonium ion (PH4+)
Draw the molecule by placing atoms on the grid and connecting them with bonds. Show the formal charges of all atoms in the correct structure. Include all lone pairs of electrons.
What is the molarity of hydrogen ion in the above sulfuric acid solution if you assume the sulfuric acid ionizes completely? the above sulfuric acid solution is 0.07 M.
an aluminum rod at 55.0 degrees celsius is put into 399 grams of water at an initial temperature of 20.0 degrees celsius. If the final temperature of water and rod are 30.0 degrees celsius, what was the mass of the aluminum rod?
The IR spectrum of 1- hexyne shows a sharp absorption peak near 2100 cm-1 owing to the CC triple bond stretch. The IR spectrum of 3- hexyne shows no absorption in this region because
Calculate the volume occupied by 15.4 g of carbon dioxide at STP, assuming ideal gas behavior.
aspirin is a monoprotic acid its formula ishc9h7o4. acertain pain reliever was analyzed for aspirin by dissolving0.250
The capacity of batteries such as the typical AA alkaline battery is expressed in units of milliamp-hours (mAh). An "AA" alkaline battery yields a nominal capacity of 2850 mAh.
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