1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
grigory [225]
3 years ago
15

Consider the given examples listed here, find out which substance from the list will turn phenolphthalein pink? (a) vinegar ( b)

water (c) lemon juice (d) soap.

Chemistry
1 answer:
egoroff_w [7]3 years ago
4 0

Answer:

(d) soap.

Explanation:

A soap is obtained by alkaline hydrolysis of a fat to yield the soap and glycerol. This process is known as saponification.

A soap solution is usually basic. Since phenolphthalein turns pink in an alkaline solution, then when phenolphthalein is added to a soap solution, the solution soon turns pink because it is alkaline in nature.

As a matter of fact, a soap sometimes has almost the pH of baking soda!

You might be interested in
When solving an equation using Gay-Lussac's law, which of the following steps do not apply? A. List your knowns and unknowns. B.
suter [353]

Answer:

C. Plug the unknowns into the ideal gas law formula.

Explanation:

Gay-Lussac's law states that:

"For a constant mass of an ideal gas kept at constant volume, the pressure of the gas is directly proportional to its absolute temperature"

Mathematically, it can be written as:

\frac{p_1}{T_1}=\frac{p_2}{T_2}

where

p1 is the initial pressure

T1 is the initial temperature (in Kelvin)

p2 is the final pressure

T2 is the final temperature (in Kelvin)

Therefore, in order to solve for one of the 4 variables, the following steps must be adopted:

A. List your knowns and unknowns.

B. Convert temperature to kelvin.

D. Solve for the unknown.

While the following step is not needed:

C. Plug the unknowns into the ideal gas law formula.

Because we do not need to use the ideal gas law formula.

8 0
3 years ago
Choose all the answers that apply.
zmey [24]
Calcium is a non metal

5 0
3 years ago
Read 2 more answers
In humans, genetic material in the cell is organized into
vladimir2022 [97]
23 pairs of chromosomes, since there is 46 singular chromosomes.
6 0
3 years ago
If 842 grams of sodium hydroxide reacts with 750.0 grams of aluminum, how many grams of aluminum hydroxide should theoretically
Phantasy [73]

548.55 grams of aluminum hydroxide should theoretically form.

Explanation:

Balanced equation for the reaction:

3 NaOH + Al ⇒ Al(OH)3 +3 Na

DATA GIVEN:

mass of NaOH = 842 grams, atomic mass =39.9 grams/mole

mass of Al = 750 grams, atomic mass = 26.9 grams/mole

aluminum hydroxide theoretical yield = ?

Moles of NaOH reacted

number of moles = \frac{mass}{atomic mass of 1 mole}

putting the values in the equation

NaOH = \frac{842}{39.9}

           = 21.1 MOLES OF NaOH

Al = \frac{750}{26.9}

   = 27.8 moles

from the equation

 from 3 moles of NaOH 1 mole of Al(OH)3 is produced

21.1 moles of NaOH will react to give x moles of Al(OH)3

\frac{1}{3} = \frac{x}{21.1}

7.03 moles of Al(OH)3 is formed.

and

1 mole of Al(OH)3 is formed from 1 mole of Al in the reaction

so, 27.8 Moles will react to give give 27.8 moles of Al(OH)3 limiting reagent of the given reaction is NaOH

mass of Al(OH)3 =7.03 x 78 (atomic mass of Al(OH)3)

          = 548.55 grams

theoretical  yield from the given data is 548.55 grams

3 0
3 years ago
What is the final product of the electron transport chain
Anna71 [15]

Answer:

water and atp

Explanation:

3 0
3 years ago
Other questions:
  • Polygamy is which of the following? The practice of having two or more husbands. The practice of having two or more wives. The p
    12·2 answers
  • You just got home from a run on a hot Atlanta afternoon. You grab a 1.00 liter bottle of water and drink three quarters of it in
    13·1 answer
  • In which phase(s) of matter are the atoms closely packed but still able to slide past each other? gas liquid
    11·2 answers
  • Valence electrons are found by looking at what _________________ the atom is in on the periodic table. 
    13·2 answers
  • On approximately what day in 28-days cycle is the egg released from the ovary
    14·1 answer
  • Priscilla was building a circuit that used copper wires to connect a battery to a light bulb. As she connected the final wire fr
    5·1 answer
  • As a chemist for an agricultural products company, you have just developed a new herbicide,"Herbigon," that you think has the po
    15·1 answer
  • BRAINLIEST PLEASE HELP!!!
    10·1 answer
  • The more impressive the tail of a male peacock, the higher its chances of finding a mate. Female peacocks choose mates based on
    11·1 answer
  • The graph shows the consumption of gasoline and diesel fuels by vehicles in the United States for a period of 40 years.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!