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draw a qualitative potential energy diagram for the rotation about the c3-c4 bond in 2,4-dimethylpentane
The two ions are mixed in a solution and you need to pick a chemical to add that would allow you to selectively remove one of them. Briefly describe the process you would use to separate the two ions.
the reaction that would occur between HCL and NaHCO3 using curved arrow notation. Show all nonbonded electrons.
How many grams of NaCl are needed to prepare 250 mL of an isotonic saline solution with a concentration of .90% , assuming a solution density of 1.0g/mL
What volume in liters of 0.94 M KOH solution should be added to a 0.090 L solution containing 9.1 g of glutamic acid hydrochloride
A student was preparing to recrystallize a solid using mixed-solvent recrystallization. He planned to dissolve the sample in boiling methanol, and then add hot pentane to induce crystallization
How many milliliters of 1.00 M KOH should be added to 100 mL of solution containing 10.0 g of histidine hydrochloride
complete and balance the equations for each of the following reactions: a)KHCO3(s)+HBr(aq)> b)Ca(s)+H2SO4(aq)> c)H2SO4(aq)+Ca(OH)2(s)> d)Na2CO3(s)+H2SO4(aq)>
A chemist studying the properties of photo- graphic emulsions needed to prepare 500 mL of 0.18 M AgNO3 (aq). What mass of silver nitrate must be placed into a 500 mL volumetric ?ask, dissolved, and diluted to the mark with water? Answer in units o..
Since the freezing point of a solution depends on the number of particles, what would you expect the freezing point of 0.1 m solutions of aqueous NaCL and BaCl2?
1-Complete the following reaction: Pb-210 decays by emission to form what new necleus? Write the complete nuclear equation.
Calculate the pH of a buffer solution made by adding 10.0 g of anhydrous sodium acetate (NaC2H3O2) to 100mL of 0.100 M acetic acid (HC2H3O2).
how many grams of calcium hydroxide will be needed to react with 10.0g of phosphate acid(h3PO4). how many grams of calcium phosphate will form?
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