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75.0 mL of a solution(1.40 M) is diluted to a volume of 278 mL. A 139-mL portion of that solution is diluted using 111 mL of H2O. determine What is the final concentration?
A Normal salt, XY, with molar mass =249 g/mol , solubility =2.70 g/L at temperature of 25 degrees Celsius. Calculate what is the Ksp of this salt at temperature of 25 degrees Celsius?
explain what ( if anything) is wrong with the following student's statement: " our solution is red, so we should set the spectrophotometer to the red light range
If a pickle recipe requires 2.0 cups of vinegar to make 6 pints of pickles, how much vinegar do you need to make 25.00 gallons of these pickles
How does electron configuration work. If I have [Ar]3d^5 as an example how do I know what it actually equals
Write the ground-state electron configurations for the following elements. (Type your answer in noble gas notation using the format [Ar] 4s2 3d10 4p2 for [Ar]4s23d104p2.)
Consider the titration of 30.0mL of 0.050M NH3 with 0.025 M HCl. Calculate the pH after the following volumes of tirant have been added.
Compare the heat produced by the complete combustion of 1 mole of methane (CH4) with a mole of water gas (0.50 mole H2 and 0.50 mole CO) under standard conditions
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.230 M HClO(aq) with 0.230 M KOH(aq). The ionization constant for HClO can be found here.
What are the units of the universal gas constant R? When can a real gas behave as an ideal gas? Are these conditions met in this experiment?
Sodium hypochlorite, NaOCL, is the active ingredient in household bleach. What is the concentration of hypochlorite ion, if 20.00mL of bleach requires 32.00mL of 0.500 M HCL to reach the equivalence point
With a solution in them connected by a liquid salt bridge junction filled with KNO3. In one solution you have a graphite electrode that is connected with a wire to a copper electrode in the second soution. The soution in contact with the graphite ..
At the anode in a galvanic cell (voltaic cell), a. electrons are accepted b. electrons are produced AND oxidation takes place c. electrons are produced d. oxidation takes place e. reduction takes place
rom your initial observations, you suspect that the two beakers contain the same compound. Describe, in general terms, some experiments in a laboratory that you could do to help prove or disprove that the beakers contain the same compound.
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