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In an experiment to find out the effect of concentration on the reaction rate, we are asked to organize 10mL of solution A and 10 mL of solution B. Then we mix both of the solution to observe the how fast is the change of the color of solution occur. For the following steps, we alter the concentration of solution A by adding 9mL of solution A and 1mL of distilled water. For trial number 3, we add 8mL of solution A and 2mL of distilled water. The total volume for test tube A is 10mL. The volume of solution B remains constant which is 10mL. The different concentration of Solution A determines the rate of reaction. However now I want to ask. Explain why is it important to keep the total volume of the solution in 10mL?
50.0 mL of an HCl solution with a pH of 3.5 neutralizes 200.0 mL of a Ca(OH)2 solution.What is the molarity of the Ca(OH)2 solution?
What effect does the reduction of atmospheric pressure have on the boiling point. Can cyclohexane and toluene be separated if the external pressure is 350 mm Hg instead of 760mm Hg
Suppose that 25g of each of the following substances is initially at 27.0 degrees C. What is the final temperature of each substance upon absorbing 2.30kJ of heat
in the determination of phenacetin and acetaminophen by coulumn chromatographywhich of the two compounds is likely to
If we add a solid aluminum cylinder to a graduated cylinder containing 19.2 mL of water, and the water level in the cylinder rises to 24.7 mL, what is the mass of the aluminum cylinder?
assuming a pressure of 1.00 atm and a temperature of 25 celcius calculate the volume of hydrogen that should form from
Which group includes only exothermic processes? Cu(s) + H2SO4(aq) 11. In the reaction shown below, which substances are dissolved in water?
Calculate ΔH° for the reaction -> 2 K(s) + 2 H2O(l) 2 KOH(aq) + H2(g) A 4.85-g chunk of potassium is dropped into 1.06 kg water at 24.0°C.
How will buffer capacity change if you add 0.2 M of benzoic acid to the buffer made of 0.3 M of acetic acid
Add charges, single electron dots, and/or pairs of dots as appropriate to show the Lewis symbols for the most stable ion of each element. Treat n=4 as the valence shell in all cases.
Use qualitative molecular orbital theory to explain why Na2O2 is diamagnetic and KO2 is paramagnetic (use the appropriate diagram from the notes. Use MO to explain the nature of the oxygen-oxygen bond in the complex anions). What is the oxygen-oxy..
Silver chloride, often used in silver plating, contains 75.27% Ag by mass. Calculate the mass of silver chloride required to plate 155 mg of pure silver.
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