pH AND HYDROLYSIS OF SALT SOLUTIONS 2. Why was DI H2O tested in this experiment?
ID: 1045689 • Letter: P
Question
pH AND HYDROLYSIS OF SALT SOLUTIONS 2. Why was DI H2O tested in this experiment? 3. A student was preparing an acidic salt solution using a solid salt. How would the pH of the salt solution be affected (increase, decrease, or no change) if some solid salts were spilled on the bench top while it was being transferred into the volumetric flask? Explain your reasoning. 4. A student was preparing a basic salt solution by diluting from a stock solution of the salt. How would the pH of the salt solution be affected (increase, decrease, or no change) if the pipet was rinsed with distilled water but was not conditioned with the stock solution before use? Explain your reasoning. 5. Baking soda contains NaHCO, (sodium hydrogen carbonate or sodium bicarbonate). A solution of baking soda can be ingested to alleviate acid indigestion. Based on what you learned from this lab, explain why it is an effective antacid. Include chemical equations in your explanation. 6. Calculate the pH of a 0.234 M NaHCO, solution. Look up the appropriate Ka or K value.Explanation / Answer
The key to baking soda’s ability to treat acid reflux lies in the ingredient sodium bicarbonate. In fact, your pancreas naturally produces sodium bicarbonate to protect your intestines. As an absorbable antacid, sodium bicarbonate quickly neutralizes stomach acid and relieves symptoms of acid reflux.
HCl + NaHCO3 ? NaCl + H2CO3
in this the main part to focus is that HCl is being consumed to form neutral salt which will decrease the amount of acid
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