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Tin reacts with hydrochloric acid to produce hydrogen gas and tin (II) chloride. How many liters of hydrogen gas are produced at 27.0 degrees C, and a pressure of 710 torr if 2.80 grams of tin reacts with the excess hydrochloric acid?
Draw a structure of the species that is formed at the lower PH if the acid proton adds to the azo nitrogen atom adjacent to the aromaic ring containing the SO3- group. Why does the proton adds to this particular nitrogen when two other nitrogen at..
Sodium has a density of 0.968g/cm3 and crystallizes with the body-centered cubic unit cell. Calculate the radius of a sodium atom in pm.
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?
When determining the effective nuclear charge for a 1s electron, Slater's rules dictate that the other 1s electron must have a value of 0.30 not 0.35. Why?
Write a condensed structural formula for each of the following (e.g. CH4, C2H6, etc.)? Then please give me a brief description of how you do so?
a 26.0-g sample of ice at -11.0degc is mixed with 123.0 g of water at 90.0degc. calculate the final temperature of the
Compute the number of gms of CoCl2 that would be needed to prepare the solutions:(a) 550 mL of a 1.75 M solution (b) 210 mL of a 0.0180 M solution.
Cesium atoms are the largest naturally occurring atoms. The radius of a Cs atom is 2.62 angstroms? How many Cs atoms would have to be laid side by side to give a row of Cs atoms 1 inch long
A 48.1 mL sample of gas in a cylinder equipped with a piston is warmed from 22 degrees C to 90 degrees C. what is the volume at final temperature?
what mass of oxalic acid dihydrate, H2C2O4 + 2H2O is required to prepare 280.0 ml of a 1.51 M solution of oxalic acid
Calculate the standard cell potential for Mg(s) + Fe2+(aq)--->Mg2+ + Fe(s) Express the standard potential numerically in volts.
Calculate the mass in grams of iodine (I-2) that will react completley with 20.4g of aluminum (AI) to form aluminum iodide (AII3).
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