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
pickupchik [31]
2 years ago
6

Which indicator is the best choice for a strong acid and strong base

Chemistry
1 answer:
Svetradugi [14.3K]2 years ago
7 0

Answer:

phenolphthalein

Explanation:

In the titration of strong acid and strong base, phenolphthalein is used as suitable indicator.

You might be interested in
Nitrogen gas (112 g) reacts with hydrogen gas to produce 40.8 g of ammonia according to the following
Lemur [1.5K]

Answer:

%yield of NH₃ = 30%

Explanation:

Actual yield of NH₃ = 40.8g

Theoretical yield = ?

Equation of reaction

N₂ + 3H₂ → 2NH₃

Molar mass of NH₃ = 17g/mol

Molarmass of N = 14.00

2 molecules of N = 2 * 14.00 = 28g/mol

Number of moles = mass / molar mass

Mass = number of moles * molar mass

Mass = 1 * 28.00 = 28g of N₂ (the number of moles of N₂ from the equation is 1).

From the equation of reaction,

28g of N₂ produce (2 * 17)g of NH₃

28g of N₂ = 34g of NH₃

112g of N₂ = x g of NH₃

X = (112 * 34) / 28

X = 136g of NH₃

Theoretical yield = 136g of NH₃

% yield = (actual yield / theoretical yield) * 100

% yield = (40.8 / 136) * 100

% yield = 0.3 * 100

% yield = 30%

8 0
3 years ago
can someone help and lmk if my answers are correct i don’t think they are please help i’ll give brainliest thank you
Dafna11 [192]

Answer:

5=C, every action has an equal or opposite reaction,

6=B, since it has less air drag and more force exerted on it

7= You're correct

5 0
3 years ago
The _______ gives the smallest whole number ratio of moles of each element in a compound. therefore, multiple compounds may have
nasty-shy [4]

The <u>Empirical formula</u> gives the smallest whole number ratio of moles of each element in a compound. therefore, multiple compounds may have it in common.

<h3>What is Empirical formula?</h3>

The most straightforward whole number ratio of atoms in a compound is its empirical formula. The empirical formula for sulfur monoxide, or SO, and disulfur dioxide, or S2O2, are both straightforward illustrations of this idea.

<h3>What is multiple compounds?</h3>

According to the law of multiple proportions, if two elements combine to form more than one compound, the ratio of the second element's mass to the fixed mass of the first element will always be a ratio of tiny whole numbers.

<h3>What is empirical formula used for?</h3>

Typically, the empirical formula is used to simply display the components of a molecule. When one needs to quickly identify the elements they are working with, this is helpful. When you want to know how many atoms of each element are present in the molecule, the molecular formula is most helpful.

To know more about empirical formula visit:

brainly.com/question/14044066

#SPJ4

3 0
1 year ago
What systems might not work right when you have a cold
Vsevolod [243]

Answer:

hello :3

A cold is a contagious upper respiratory infection that affects your nose, throat, sinuses and trachea (windpipe).

Explanation:

have a nice day :3

5 0
2 years ago
When 155 mL of water at 26 C is mixed with 75 mL of water at 85 C, what is the final temperature? (assume that no heat is releas
Mnenie [13.5K]
Depends if it desolved with the water or not

5 0
3 years ago
Other questions:
  • Imagine you pour some hot soup into a bowl. You place your hands on the outside of the bowl and feel that the bowl is very warm.
    5·1 answer
  • How many grams of HNO3 are produced when 59.0 g of NO2 completely reacts?
    9·1 answer
  • How many chiral carbon atoms does the monosaccharide altrose have?
    12·1 answer
  • Which prediction about a methane molecule would most likely be made by using both the quantum model of the atom and John Dalton'
    7·1 answer
  • GIVING BRAINLIEST!!! A student observes a beaker of room temperature water resting on a table. She states that the beaker of wat
    11·2 answers
  • Silver chloride was reacted with magnesium hydroxide, in which magnesium displaced silver
    15·1 answer
  • Analizando una biomolécula X, un científico comprueba que está formada por Carbono, Hidrógeno, Oxígeno y Nitrógeno, además de li
    10·1 answer
  • What is the percentage composition of carbon and hydrogen in ethane(c2h6,molecular mass 30.0)<br>​
    5·1 answer
  • Given the following balanced equation, determine the rate of reaction with respect to [SO2].
    14·1 answer
  • What is the speed of light?can a object move in speed of light?​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!