You and a friend are having dinner at a restaurant you

Assignment Help Chemistry

Reference no: EM13386040

1. Which of the following is a general property of a basic solution?
     a. tastes bitter
     b. turns litmus blue
     c. pH less than 7
     d. feels slippery
2. Classify each of the following Arrhenius bases as strong or weak given the degree of ionization.
     a. zinc hydroxide, Zn(OH)2(s), ~1%
     b. lithium hydroxide, LiOH(aq), ~ 100%
     c. iron(II) hydroxide, Fe(OH)2(s), ~ 1%
     d. barium hydroxide, Ba(OH)2(aq), ~ 100%
3. Given the molar concentration of hydrogen ion [H+] = 6.2 x 10 -7, calculate the concentration of hydroxide ion.
4. Given the molar concentration of hydroxide ion [OH -] = 4.6 X 10 -13, calculate the concentration of hydrogen ion.
5. Classify each of the following bases as a strong or weak electrolyte.
     a. KOH(aq)
     b. NH4OH(aq)
     c. Ca(OH)2(aq)
     d. Mg(OH)2(s)
6. What is the term for ions that appear in total ionic equation but are not present in the net ionic equation?
7. In 1 mL of water there are 3 X 1022 molecules of H2O. How manyhydrogen ions are in 1 mL of water (Hint: In 1 billion water molecules, only 2 are ionized).

8. What is the pH of a 0.25 M NaOH solution?

9. You and a friend are having dinner at a restaurant. You order strong, hot tea with lemon, and your friend orders plain hot tea. When your drinks arrive, the waiter apologetically informs you that he has already put the lemon into one of the teapots. He realized his mistake, and took it out, but now he doesn't know which is which. You assure him that since you are a chemist, you know which is which. How do you make this determination?

10. A Rolaids tablet contains calcium carbonate, which neutralizes stomach acid. If 44.55 mL of 0.488 M hydrochloric acid is required to neutralize one tablet, how many milligrams of calcium carbonate are in a Rolaids tablet?
CaCO3.(s) + 2 HCl(aq) -> CaCl2(aq) + H2O(l) + CO2(g)

Reference no: EM13386040

Questions Cloud

What is the pressure in atmospheres in a container of gas : what is the pressure in atmospheres in a container of gas connected to a mercury-filled open-end manometer if the level

Rcommend an alternative to the capm for analyzing capital : recommend an alternative to the capm for analyzing capital assets. provide support for your recommendation.in times of

An ordinary 30 v flashlight bulb draws roughly 025 a of : an ordinary 3.0 v flashlight bulb draws roughly 0.25 a of current and converts about 1.0 of the electrical power into

Use the data to determine the heat of vaporization of : the vapor pressure of nitrogen at several different temperatures is shown below.temperature k pressure torr65 130.570

You and a friend are having dinner at a restaurant you : 1. which of the following is a general property of a basic solution?nbspnbspnbspnbsp a. tastes bitternbspnbspnbspnbsp

How many pi bonds are there in a molecule of crotononitrile : how many pi bonds are there in a molecule of crotononitrile?how many sigma bonds are there?how many nonbonding valence

An extended source emits 200 w cm-2 sr-1 nm-1 at 300 nm : an extended source emits 2.00 w cm-2 sr-1 nm-1 at 300 nm. calculate the spectral radiant power impingent on a 1.00 cm2

The hydrogen in the water comes from the hydrocarbon : you perform combustion analysis on 255 mg of a molecule that contains only c h and o and you find that 561 mg co2 is

A beam of 6328 nm photons from a he-ne laser strikes a : a beam of 632.8 nm photons from a he-ne laser strikes a detector area of 5.0 mm2. the laser has a flux of 3.18 x 1015

User Account

All Pages