Baking soda (sodium bicarbonate, NaHCO3) is an example of abase.
1. Draw the Lewis structure of the bicarbonate ion. It is possiblefor this ion to act as either an acid or a base. Explain why.
2. When placed in pure water, bicarbonate always acts as a base.Why is this?
3. Propose (and write) a reaction in which bicarbonate would act asan acid.

answer

watching

1,847

views

For unlimited access to Homework Help, a Homework+ subscription is required.

You have 0 free answers left.
Get unlimited access to 3.8 million step-by-step answers.

Get unlimited access

Already have an account? Log in

Sixta KovacekLv2

20 Jun 2019

Unlock all answers

Get 1 free homework help answer.

Already have an account? Log in

Join us on Discord

Chemistry Study Group

Join now

Related questions

Baking soda (sodium bicarbonate, ) is an example of a base.

a. Draw the Lewis structure of the bicarbonate ion.

b. It is possible for this ion to act as an acid or a base? Explain why.

c. When placed in pure water, bicarbonate ion always acts as a base. Use the relationships in the table above to speculate why this is the case.

d. Propose (and write) a reaction in which bicarbonate ion would act as an acid.

azurefish181

Baking soda is pure sodium bicarbonate, NaHCO3, which dissolves and dissociates in water into thesodium ion and the bicarbonate ion. As most students know from demonstrations in grade school or athome, it can be mixed with vinegar for a rapid and entertaining chemical reaction that generates carbondioxide gas bubbling out of the reaction mixture.

The overall reaction can be written as:CH3COOH (aq) + Na+(aq) + HCO3â(aq) â Na+(aq) + CH3COOâ(aq) + H2O(l) + CO2(g) in which the sodium ion is a spectator ion.

Baking soda or baking powder can be used in recipes as a leavening agentâthat is, to produce carbondioxide gas to make dough or batter rise. Recipes using baking soda must include a separate acidicingredient such as buttermilk or vinegar. Recipes that do not include the separate addition of an acidicingredient usually require baking powder instead. Baking powder has a solid organic acid mixed in withthe baking soda, so that when the mixture is dissolved, the acid and sodium bicarbonate react with eachother. While commercial baking powder involves slightly more complicated chemistry, a good substitutefor baking powder can be made by adding baking soda to an acid such as potassium hydrogen tartrate(potassium bitartrate or cream of tartar). The formula for potassium hydrogen tartrate is KH C4H4O 6 . Your task is to devise a suitable substitute for baking powder by calculating the mass of cream of tartar in grams required to react with 10.00 g of baking soda. There should be enough cream of tartar added so that all of the baking soda will react to make carbon dioxide gas, but no more cream of tartar than that.

Sodium hydrogen carbonate (NaHCO₃), also known as sodium bicarbonate or baking soda, can be used to relieve acid indigestion. Acid indigestion is the burning sensation you get in your stomach when it contains too much hydrochloric acid (HCl), which the stomach secretes to help digest food. Drinking a glass of water containing dissolved NaHCO₃ neutralizes excess HCl through this reaction:

The CO₂ gas produced is what makes you burp after drinking the solution.

Suppose the fluid in the stomach of the man suffering from indigestion can be considered to be 50 mL of a 0.034 M HCl solution. What mass of NaHCO₃ would he need to ingest to neutralize this much HCl?