Add about an inch of water to a large test tube followed by a couple drops of
Question:
Add about an inch of water to a large test tube followed by a couple drops of phenolphthalein pH indicator, which you will likely need to obtain from your classroom. Add a small pinch of washing soda, which contains sodium carbonate, Na2CO3. Upon mixing, the washing soda turns the solution basic, as evidenced by the pink color that forms. Neutralize this base by adding an acid, but not just any acid—use the acid of your breath. Bubble your breath into the solution through a straw until the pink color disappears. What acid are you adding? How does this activity relate to the acidity of rain? Why do you want to add only a small pinch of washing soda and not a tablespoon?
Step by Step Answer:
The carbon dioxide of your breath reacts with the water to form carbonic acid which reacts wit...View the full answer
Conceptual Physical Science
ISBN: 978-0134060491
6th edition
Authors: Paul G. Hewitt, John A. Suchocki, Leslie A. Hewitt
Related Video
A substance that alters color in solution over a constrained range of pH values is known as a pH indicator or acid-base indicator. The indicator chemical just needs to alter color slightly in order to be noticed. Indicators work on the basis that they react with water to produce the hydrogen cation H+ or hydronium ion H3O+. The indicator molecule\\\'s color changes as a result of the reaction. Since indicators have distinct color ranges for color change, they can occasionally be combined to provide color changes over a wider pH range.
Students also viewed these Physics questions
-
You can build a relatively inefficient but fun-to-watch distiller at home. Avoid the steam produced in this activitysteam burns can be particularly harmful. Step 1: Fill a cooking pot to a depth of...
-
Two engineers are having an argument about the efficiency of a tube-side multipass heat exchanger compared to a similar exchanger with a single tube-side pass. Mr. Smith claims that for a given...
-
A standpipe in a water-supply system (see figure) is 12 ft in diameter and 6 inches thick. Two horizontal pipes carry water out of the standpipe; each is 2 ft in diameter and 1 inch thick. When the...
-
Southern Stitches is a local casual clothing shop that makes a variety of t-shirt styles. Below is some actual vs. budget information for Southern's t-shirts for the month of May. Assume no...
-
In 2014, your client, Clear Corporation, changed from the cash to the accrual method of accounting for its radio station. The company had a positive 481 adjustment of $2.4 million as a result of the...
-
North Pole Snowmobile is considering a switch to level production. Under level production, cost efficiencies would occur and aftertax costs would decline by $30,000, but inventory would increase by...
-
An investor comes to you and tells you that a company wants to invest in a new turbine design with the following performance characteristics: \(112 \mathrm{~m}\) rotor diameter \(13 \mathrm{~m} /...
-
Stromberg Company of Zwingle, Kansas, spreads herbicides and applies liquid fertilizer for local farmers. On May 31, 2012, the company??s Cash account per its general ledger showed a balance of...
-
HATAY MK ANTAKYA MYO GENEL MUHASEBE DERS ARA SINAV DEV ADI-SOYADI : RENC NO: 1-X Tic. lt. 05.01.2023 tarihinde A bankasndaki vadesiz mevduat hesabndan 5.000TL para ekmitir. ---Muhasebe kaydn yapnz....
-
Automatic control of helicopters is necessary because, unlike fixed-wing aircraft which possess a fair degree of inherent stability, the helicopter is quite unstable. A helicopter control system that...
-
Copper metal reacts slowly with the oxygen in air to form reddish copper(I) oxide, Cu 2 O, which is a compound that coats the surface of older pennies, making them look tarnished. When such a penny...
-
Make a concentrated solution of red cabbage extract by boiling a cup of shredded red cabbage in a cup of water for about 5 minutes. Pour this extract into a large transparent container, such as a...
-
Each of the following 10 independent projects has a 10 years life and no salvage value . The projects have been proposed by the staff of the Ace Card Company. The MARR of Ace has been 12% for several...
-
In a biological system, N2 is often bubbled through a fermentor to maintain anaerobic conditions. As the N2 bubbles through the fermentor, the gas strips water from the liquid. Consider an isothermal...
-
Exhibit 12.1 lists common techniques used to commit cybercrimes. For each of these techniques, research the Internet and provide the names of one or two entities that have been impacted by such...
-
As a foundation for your financial planning, visit the U.S. Department of Labor Career Guide to Industries at www.bls.gov/oco/cg to determine the earnings, benefits, and employment outlook for a...
-
Locate at least three different Web sites with net worth calculators. Compare and contrast the listings of assets and liabilities. Do any of the calculators offer guidelines for interpreting results?...
-
Talk to your parents about their taxes. Do they follow any of the five tax reduction strategies presented in this chapter? Talk to them about the benefit of following one or more of these strategies....
-
What led The Walt Disney Company to believe that its theme parks would be successful internationally? What stumbling blocks did Disney encounter at the France and Hong Kong theme parks? What are some...
-
(a) What do data breach notification laws require? (b) Why has this caused companies to think more about security?
-
In Cartesian coordinates, show that may be written (v ¢ ). What is the physical meaning of the term (v ¢ )? + Vz dy
-
In an in-compressible flow, the volume of the fluid is constant. Using the continuity equation, v = 0, show that the fluid volume change is zero.
-
Find Dv/Dt in polar coordinates by taking the derivative of the velocity. (v = v r (r, , t)e r + v (r, , t)e . Remember that the unit vectors have derivatives.)
-
The Clifford Corporation has announced a rights offer to raise $36 million. The stock currently sells for $28 per share and there are 18 million shares outstanding. If the subscription price is set...
-
Superman Enterprises has just completed an initial public offering. The firm sold 4,700,000 new shares at an offer price of $17.00 per share. The underwritering spread was $0.78 a share. The firm...
-
ABV is a non-dividend paying stock whose current price is $50. Its volatility is 12%. Over each of the next two 6-month periods the stock price is expected to go up by 9% or down by 8%. The risk-free...
Study smarter with the SolutionInn App