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A Ni(II) coordination compound with an octahedral arrangement of ligands has been synthesized containing only water and ammonia as ligands and chloride as counterions. From the following data, determine the exact formula of this compound. When 4.37x10^-4 moles of this complex is dissolved into 425.0 mL of water, you find that 17.49 mL of 0.1000 M HCl is needed to reach a titration endpoint. Make sure that your final formula contains the necessary counterions to make a neutral salt.
As the sample descended, the water pressure compressed the balloon and reduced its volume. When the pressure had increased to 35.0 atat was the volume of the sample. Assume that the temperature was held constant.
A polyamide was prepared by bulk polymerization of hexamethylene diamine (9.22 g) with adipic acid (11.68 g) at 280 degrees C. Analysis of the whole reaction product showed that it contained 2.6 x 10-3 mol of carboxylic acid groups.
Draw all stereoisomers of 1,2,3-trimethylcyclopentane. Use bold and hashed wedges to show the stereochemistry.
What advantages and disadvantages exist for both organic and inorganic solar cells? Describe the main barriers or technical difficulties associated with each.
What is the molarity of a solution prepared by dissolving 72.0 g of HCI in enough water to make 500 ml of solution.
Compare the pH vs volume curve for HCL and acetic acid. discuss any difference in the shape of the curves. Compare theese two curves to one of the curves prepared for the unknow
3.00 mole of Ne has a total pressure of 24.5 atm at 25 degrees C. How many moles of He are in the flask?
A sample of gas occupies a volume of 364 mL at 1.28 atm and 27 oC. Calculate the volume of the gas if its temperature is changed to 57.0 oC while its pressure is held constant.
A sample of pure silver jewelry has mass of 63.3g and is heated to a temperature of 111.4C. It is placed into a container of water at 17C.
during an acid-base titration 23.3 ml of hcl completely neutralized 19.5 ml of potassium hydroxide 0.315 m. calculate
an ecell consists of a ag electrode in contact with 346 ml of 0.1 m silver nitrate solution and a mg electrode in
1. Calculate the pH after 0.0 mL of KOH has been added. 2. Calculate the pH after 20.0 mL of KOH has been added. 3. Calculate the pH after 25.0 mL of KOH has been added. 4. Calculate the pH at the equivalence point. 5. Calculate the pH after 100.0..
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