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
finlep [7]
3 years ago
11

How many grams of methionine (MW = 149.21) are needed to make 20 mL of a 150 mM solution?

Chemistry
1 answer:
Leni [432]3 years ago
7 0

Answer:

0.45 g

Explanation:

Step 1: Given data

  • Molar mass of methionine (M): 149.21 g/mol
  • Volume of the solution (V): 20 mL
  • Concentration of the solution (C): 150 mM

Step 2: Calculate the moles of methionine (n)

We will use the following expression.

n = C × V

n = 150 × 10⁻³ mol/L × 20 × 10⁻³ L

n = 3.0 × 10⁻³ mol

Step 3: Calculate the mass of methionine (m)

We will use the following expression.

m = n × M

m = 3.0 × 10⁻³ mol × 149.21 g/mol

m = 0.45 g

You might be interested in
According to the kinetic molecular theory, the particles of an ideal gas
Basile [38]

Answer: what the hell does that mean

Explanation:

5 0
2 years ago
Elias read a book about California earthquakes. He then wrote a three-
Cloud [144]
C. Summarizing
He read the book, then summarized what he read in his report.
4 0
2 years ago
The allotropic form of a non – metal is a good conductor of electricity. Name the nonmetal.
SashulF [63]

Answer:

carbon with graphite as the allotrope

8 0
2 years ago
Which set of chemical name and chemical formula for the same compound is correct?
Elenna [48]

Answer:

B) Iron(lll) phosphate, FePO4

5 0
2 years ago
How many atoms are in 2.5 mole of F
mel-nik [20]

Answer: 1.5 x 10^24

Explanation: Just multiply 2.5 by avagadro's number 6.2 x 10^23 to get the answer.

4 0
2 years ago
Other questions:
  • How many valence electrons are in an atom of gold?
    15·1 answer
  • As you travel from a solid to a gas, energy is being absorbed or given off?
    15·1 answer
  • Which of the following statements about equilibrium of chemical reactions is correct? See Concept 8.2 (Page 147) View Available
    10·1 answer
  • Type the correct answer in the box.
    13·1 answer
  • Of the following gases, ______ will have the greatest rate of effusion at a given temperature.A) NH3B) CH4C) ArD) HBrE) HCl
    9·1 answer
  • Most oxygen in our atmosphere _____. has two oxygen atoms has three oxygen atoms combines with carbon has a single oxygen atom
    11·1 answer
  • Properties of carbon responsible for the pressence of millions of organic compound ​
    12·1 answer
  • What is the net ionic equation for the reaction shown below?
    12·1 answer
  • How many grams of oxygen can be obtained from 250. grams of KCIO3?
    13·1 answer
  • Q+ is an ion of element Q. What has the highest value in the ion?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!