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
Softa [21]
3 years ago
5

How many grams of solute are needed to make 125 mL of 2.50 M NH4Cl solution? Round to three significant digits.

Chemistry
1 answer:
Nookie1986 [14]3 years ago
4 0

Answer:

Mass = 16.7 g

Explanation:

Given data:

Volume  =  125 mL (125/1000 =0.125 L)

Molarity = 2.50 M

Mass in grams of solute = ?

Solution:

First of all we will calculate the number of moles:

<em>Molarity = number of moles solute / volume in litter</em>

2.50 M = Number of moles of solute/ 0.125 L

Number of moles of solute = 2.50 M × 0.125 L

Number of moles of solute = 0.313 mol

Grams of solute:

<em>Number of moles = mass / molar mass</em>

Mass = number of moles × molar mass

Mass =  0.313 mol × 53.5 g/mol

Mass = 16.7 g

You might be interested in
Does listening to music when you study increase your test scores? What is the independent variable?
guajiro [1.7K]

Answer:

It can you just have to find a song that get's stuck in your head and try replacing the studing answer with the song because then the answer will get stuck in your head.

Explanation:

5 0
3 years ago
Read 2 more answers
Which of the following pieces of information is given in a half-reaction?
puteri [66]

Answer:

<em>The number of electrons transferred in the reaction</em>

Explanation:

8 0
3 years ago
Energy from the Sun reaches Earth mainly by the process of *
Dimas [21]

Answer:

D.<em> </em>Radiation

<em>Explanation:</em>

The Sun always transfers its energy to any planet (Including Earth) through <u>solar radiation, infrared, and UV rays.</u> These are all examples of <u>radiation.</u>

I hope this helps you! Good luck with your test/assignment! :D

6 0
2 years ago
Because water is an excellent _________, it transports sugars, amino acids, vitamins, minerals, and ions throughout the body.
GenaCL600 [577]
I think the answer is solvent but i'm not very sure.
3 0
3 years ago
D( )-Camphor is treated with 5-methoxytryptamine in the presence of sodium cyanoborohydride to generate a new molecule, as a sin
Svetach [21]

The reducing agent can approach the carbonyl face of camphor by forming a one carbon bridge (known as an exo attack) or a two carbon bridge (termed endo).

The two resultant stereoisomers are known as isoborneol and borneol (from exo attack) (from endo attack). Gas chromatography (GC) analysis may be used to calculate the ratio of each isomeric alcohol in the mixture. Unfortunately, IR analysis does not permit this.

The stereochemistry of the reaction is regulated in stiff cyclic compounds like camphor and norcamphor by protecting one side of the carbonyl group from the reagent's assault. The hydrogen atom is added to the endo side, creating the exo alcohol isoborneol, while the methyl groups on the one-carbon bridge of camphor screen the approach of the hydride from the "top" or exo side of the two-carbon bridge. You will be asked to guess the main isomeric alcohol created by the norcamphor hydride reduction later in the lab report.

To view more about rational reaction, refer to:

brainly.com/question/20308523

#SPJ4

4 0
2 years ago
Other questions:
  • Does any of these combinations have a change
    9·1 answer
  • What is the correct description of the components of an ATP molecule?
    5·1 answer
  • Looking at the periodic table, which of these elements has the smallest atomic radius?
    13·1 answer
  • If 7.84 × 107 J of energy is released from a fusion reaction, what amount of mass in kilograms would be lost? Recall that c = 3
    8·2 answers
  • An acetylide anion is more stable than either a vinylic or alkyl anion due to Group of answer choices the greater stability of a
    9·1 answer
  • Why is salad dressing a solution?
    10·1 answer
  • SCIENCE QUIZ PLZ HELP I WILL GIVE YOU BRAINLYEST
    10·2 answers
  • By what method do we measure the distance to objects that are a few thousand light-years away?
    14·2 answers
  • Which two phase changes occur when you increase the heat?
    15·1 answer
  • What material is the source for commercial production of each of the following elements:(a) aluminum;
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!