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- 4. Explain using equilibrium principles, how the Carbonic Acid/Bicarbonate system regulates breathing. carbonie anhydrase co, + H,0S H,co,S HCO, + H* carbon dioxide + carbonic acid bicarbonate + water hydrogen lonIn an experiment, it requires 34.2 ml of a NaOH solution to titrate 0.500 g of dissolved KHP (molecular weight = 204.22 g/mol) to the phenolphthalein end point. Calculate the molarity of NaOH solution. 0.0176 M A. 0.0415 M OB. 0.0645 M OC. O D. 0.0716 M 0.0312 M OE.1.) How many milliliters of 2.3 M NaOH are needed to neutralize 8.6 mLof a 5.7 M H2SO4 solution? ____ mL NaOH solution 2.)How many milliliters of 2.4 M NaOH solution are needed to neutralize 6.0 mL of 5.0 M H2SO4 solution? ___mL NaOH solution
- A 0.512 g sample of CaCO3 is dissolved in 12 M HCl and the mixture is diluted to 250 mL. How many moles of CaCO3 are used? What is the [Ca2+] in the 250 mL solution? How many moles of Ca2+ are in a 25 mL sample of the 250 mL solution?5. The reaction that takes place when a strong acid is added to an acetic acid- acetate buffer (CH;COOH/CH;CO0') is A. CH3COOH + H* B. CH3COOH + H* C. CH;COO' + H* D. CH;COOH + H* CH;COO` + H2O CH4 + CO2 CH;COOH * CH;COO' + H2In the reaction H₂S + H₂O HS + H3O+ water is acting as a Bronsted Lowry base OH2S is acting as a Bronsted Lowry base OH30* is acting as a Bronsted Lowry base
- The acetic acid/acetate buffer system is a common buffer used in the laboratory. Write the equilibrium equation for the acetic acid/acetate buffer system. The formula of acetic acid is CH3CO2H . equilibrium equation: Which way does the equilibrium shift if more H3O+ is added? The equilibrium will shift to the left. The equilibrium will shift to the right. The equilibrium will not change.Added acid and base: HCl and NaOHWhen the aspirin is tested to see if it breaks down more efficiently in HCl or NaOH; a) why is a control test done using salicylic acid? b) what is the purpose of the FeCl3 in this aspirin test?