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What would happen to the A450 valure for a sample as test tube#10(is included 1ml of 0.0025M Fe(NO3)3 , 1ml of 0.0025M KSCN, and 5ml of 0.1M HNO3 ) ,ifI accidentally added 5 drops of disodium hydrogen phospate? (Expalin briefly including any relevant equilibria)
Calculate the pH of a buffer that contains 0.060M ammonium chloride
In this experiment the choice of precipating reagent is important. briefly explain what the consequences would be if excess 6M NaOH solution instead of 6M NH3 solution were used to seperate Fe3+ and Al3+ ions from Ca2+, Cu2+, and K+ions at pH9-10...
How many milliliters of .02 M HCl are used to completely neutralize 20.0mL of .01 M NaOH solution?
What is the similarity in these diagrams? The sodium ion and the neon atom are isoelectronic (have the same electron configuration).
A clear container becomes a uniform color after a small amount of colored gas is added. A raindrop falls to earth.
Determine the concentrations of BaBr2, Ba2 , and Br- in a solution prepared by dissolving 1.62 × 10-4 g BaBr2 in 1.50 L of water.
Calculate the pH of a solution formed by mixing 65 mL of 0.30 M NaHCO3 with 75 mL of 0.30 M Na2CO3
Draw the structures and then List the following alkyl halides in order of their increasing reactivity as substrates in SN2 reactions
How many moles of naoh do you have to add to the solution in part a so that the ph will increase by 0.2?
In a certain experiment, 2.00 g of NH3 reacts with 2.50 g of O2. a) How many grams of NO and of H2O form? b) how many grams of excess reactants remain after the limiting reactant is completely consumed
what is the density of a block of marble that occupies 285 centimeters cubed and has a mass of 636 grams? answer in units of g/centimeters cubed.
The vapor pressure of pure ethyl bromide at this temperature is 400.0 torr. Assuming an ideal solution, what is the molecular mass of the compound?
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