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A solution contains 18.65 grams of KCl in 1000 mL of solution. What is the molarity of the solution?
Problem- How many half-lives. Are required for the concentration of a reactant to decrease to 25 % of its original value
A solution of methanol, CH3OH, cotains 55.0 grams of methanol in 100. mL of water solution. What is the molarity of methanol in the solution?
50.0 ml of water are placed in a calorimeter. when 15.0 g of iceare added to the calorimeter the temperature drops from
59.0 ml of an unknown molarity of sodium hydroxide is combined with45.0 ml of 1.40 m magnesium chloride. what is the
Problem- How to separate benzoin from 1,4-dichlorobenezene from a mixture. Suggest a separation method that does not require distillation
Extract a solute from 100 mL of water using only 300 mL of ether. The partition coefficient between ether and water is 3.0. Calculate q, the fraction of solute that would remain in the water under each of the following extraction conditions
The following sketches show the atomic orbital wave functions (with phases) used to construct some of the MOs of a homonuclear diatomic molecule. For each sketch, determine the type of MO that will result from mixing the atomic orbital wave functi..
If the standard silver half-reaction potential is set to .80V, calculate the potential for the zinc half-reaction. Write the net ionic equation for the reaction that occurs in this voltaic cell.
What volume of 0.382 M NaOH is needed to reach the equivalence point in the titration of 24.9 mL of 0.0390 M chlorous acid, and what is the name of the salt that is formed during the titration
calculate Autothermal reforming material balance for all the plant (manual and summary tabels) . please use Auto-thermal reforming technology
In its vibration-rotation spectrum what is the meaning of the P, Q, R branches. What is the J value of the lower rotational state in the R branch that gives the line of maximum intensity.
The boiling point of pure CS2 is 46.30 oC, and its boiling point elevation constant Kb is 2.34 oC/m. A solution of sulfur in liquid CS2, which was prepared by dissolving 2.26 g S in 50.0 g CS2, boils at 46.71oC. What is the molecular formula of th..
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