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X 10. In your test tube rack you have a screw-cap test tube containing 0.25 M HCl (hydrochloric acid) stock solution; th
Posted: Mon May 09, 2022 3:34 pm
by answerhappygod
- X 10 In Your Test Tube Rack You Have A Screw Cap Test Tube Containing 0 25 M Hcl Hydrochloric Acid Stock Solution Th 1 (479.36 KiB) Viewed 37 times
X 10. In your test tube rack you have a screw-cap test tube containing 0.25 M HCl (hydrochloric acid) stock solution; that's 2.5 x 10-1 M. Pipette 0.5 mL of the stock 2.5 X 10-1 M HCl into another tube which has 4.5mL water. Swirl to mix. You then add 0.2 mL and 2mL of the 1:10 dilution of the stock into tubes 1 and 2 below. What is the final pH of the solutions in tube 1 and tube 2? Please show your calculations. (3 points) Tube # stock H2O2(mL) Guaiacol (mL) enzyme extract(mL)_H2O(mL) HCL sol. pH 1 2 0.8 0.8 2 2 0.2 0.2 1.8 0 0.2 2.0