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What is the general trend in the atomic radius of atoms within the same group and within the same period? List the contributing factors to the atomic radius trend within a group and within a period, specifically considering the protons in the nucleus, the electrons and the electron shells.
0.020 mole of Ca(OH)2 is added into 400 mL of buffer solution with 0.40 M of NH3 and 0.60 M of NH4Cl. Calculate the pH of the solution. Kb=1.8*10^-5.
State condensed structural formulas for all five carbon aldehydes and ketones and the molecular formula is C5H10O
In the alkylation of cyclopentanone, better yields are obtained by first reacting cyclopentanone with an equivalent of lithium diisopropylamde in THF and then adding the alkyl halide ratehr than mixing cyclopentanone, alkyl halide and a catalytic ..
consider the reversible reaction ag lt---gt 2bgat equilibrium the concentration of a is 0.381 m and that of b is 0.154
Write the balanced chemical equation for the reaction of aqueous phosphoric acid with aqueous sodium hydroxide (NaOH is being titrated). Then calculate the volume of .200 M H3PO4 could be neutralized using 50.00 ml of your diluted NaOH
Calcium nitrate will react with ammonium chloride at slightly elevated temperatures, as represented in the equation Ca(NO3)2(s)+2NH4Cl(s)--->2N2o(g)+CaCl2(s)+4H2O(g)
what will happen if a small amount of HCl is added to a 0.1M solution of HF? a. the percent ionization of HF will decrease. b. Ka for HF will increase
One chemistry 370 student was attempting to synthesize ethyl t-butyl ether by a William ether synthesis with sodium ethoxide and t-butyl bromide. To his surprise, the major product he obtained is NOT the target molecule. (a) What is the product? (..
In a titration, 10.0 mL of 0.025 M hydrochloric acid is added to 30.0 mL of 0.030 M ammonia. What is the pH of the resulting mixture?
When 1.150 grams of an unknown nonelectrolyte dissolves in 10.0 grams of water, the solution freezes at -2.16°C. What is the molecular weight of the unknown compound? Kf for water = 1.86°C/m.
at room temperature 20 degrees celsius milk turns sour in about 63 hours. in a refrigerator at 3 degrees celsius milk
Determine the molar mass of carbon dioxide by measuring the mass of an Erlenmeyer flask full of the gas. The following calculations are intended to familiarize you with the general procedure:
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