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One contains 0.2 mol Pb(CH3COO)2 , the second contains 0.1 mol Na2S , and the third contains 0.1 mol CaCl2 . what is the ionic equation for the precipitation reaction or reactions that occur. and What are the spectator ions in the solution.
To prepare a fertilizer, an engineer dilutes a stock solution of sulfuric acid by adding 24.7 L of 5.25 M acid to enough water to make 500. L. What is the mass of sulfuric acid per milliliter of the diluted solution. 4 significant figures.
If you mixed 75 ml of 2 M HCl with 37.5 ml of 4 M NaOH, how many joules of heat would be released? How much would the temperature of the solution increase?
you are given a small bar of an unknown metal x. you find the density of the metal is 10.5 gcm3. another experiment
if you have 430.00 ml of water at 25.00 degrees celcius.and add 100 ml of water at 95.00 degrees celcius, what is the final temperature of the mixture?
If 2.00g of N2 gas has a volume of 0.40L and a pressure of 6.0atm, what is its Kelvin temperature
a fixed quantity of gas at 25degc exhibits a pressure of 724 torr and occupies a volume of 5.90 l.a use boyles law to
suppose a snack bar is burned in a calorimeter and heats 2000 g water by 20 degc. how much heat energy was released?
solution of an unknown monoprotic acid with 23.68 mL of .9721 M NaOH results in a solution pH of 3.74 Calculate the Ka of the acid.
If you have 4.26 g of caffeine dissolved in 94.6 mL of water and the extraction coefficient between H2O and CH2Cl2 is 21.51. How many grams of caffeine will extract into the CH22Cl2 layer if you use 59.9 mL
Write chemical equations and corresponding equilibrium expressions for each of the three ionization steps of phosphoric acid. Write chemical equations for first ionization step of phosphoric acid. H3PO4(aq)+H2O(l) H3O+(aq) + H2PO4^- (aq)
Use VSEPR theory to describe the bonding in propene. Also, include bond angles in your explanation.
What physical property would the student measure to determine SN1 or Sn2 nature of the reaction. What would the student observe if the reaction proceded via SN1 reaction
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