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
Kruka [31]
2 years ago
7

What is the purpose of the cell wall?

Chemistry
1 answer:
frutty [35]2 years ago
3 0

The purpose of cell wall is to protect the cell and to determine the cell's shape.

You might be interested in
A solution is diluted by adding more _____, which means the _____ of the solution increases but the amount (moles) of solute sta
Rudik [331]

Answer:solvent ; volume

Explanation:

6 0
2 years ago
What happens to these physical properties as the strength of intermolecular forces increases?Increase or decrease?a) melting poi
docker41 [41]

Boiling Point, Melting Point, Viscosity, Surface Tension. Decrease: Vapor Pressure.

6 0
3 years ago
In an experiment, you measure a solution absorbance of 0.2 with a path length of 1cm. If the molar absorptivity coefficient is 5
postnew [5]

A solution has an absorbance of 0.2 with a path length of 1 cm. Given the molar absorptivity coefficient is 59 cm⁻¹ M⁻¹, the molarity is 0.003 M.

<h3>What does Beer-Lambert law state?</h3>

The Beer-Lambert law states that for a given material sample, path length and concentration of the sample are directly proportional to the absorbance of the light.

A solution has an absorbance of 0.2 with a path length of 1 cm. Given the molar absorptivity coefficient is 59 cm⁻¹ M⁻¹, we can calculate the molarity of the solution using the following expression.

A = ε × b × c

c = A / ε × b

c = 0.2 / (59 cm⁻¹ M⁻¹) × 1 cm = 0.003 M

where,

  • A is the absorbance.
  • ε is the path length.
  • b is the molar absorptivity coefficient.
  • c is the molar concentration.

A solution has an absorbance of 0.2 with a path length of 1 cm. Given the molar absorptivity coefficient is 59 cm⁻¹ M⁻¹, the molarity is 0.003 M.

Learn more about the Beer-Lambert law here: brainly.com/question/12975133

7 0
2 years ago
liam uses a machine that counts waves on a metal cable. The machine counts 25 waves in 2 seconds. what is the frequency of the w
Softa [21]
Frequency is defined as the number of waves per second. In this machine 25 waves pass in one second.
We need to calculate the number of waves that pass a particular point during one second.
During 2 seconds -25 waves
Therefore in one second - 25/2 = 12.5 waves/s.
1 wave per second has the unit Hertz (Hz)
Therefore answer is 12.5 Hz
7 0
3 years ago
2 icl + h2i2 + 2 hcl is first order in icl and second order in h2. Complete the rate law for this reaction in the box below. Use
OleMash [197]

2 ICl + H2   ----> I2 + 2 HCl

as given that rate is first order with respect to ICl and second order with respect to H2

The rate law will be

Rate = K [ICl] [ H2]^2

b) Given that K = 2.01 M^-2 s^-1

Concentrations are

[ICl] = 0.273 m and [H2] = 0.217 m

Therefore rate = 2.01 X (0.273)(0.217)^2 = 0.0258 M / s

5 0
3 years ago
Other questions:
  • What is the pOH of a<br> 5.6 x 10-5 M solution of cesium<br> hydroxide (CsOH)?
    9·1 answer
  • 6. 30.0 g of each of the following acids are needed. Find the volume of each that must be measured out in a graduated cylinder.
    13·2 answers
  • Household bleach is an aqueous solution which has a pH of about 11 and feels slippery to the
    15·1 answer
  • 6. Organic or Inorganic?<br>a. 2C6H1206<br>b. 3HCI<br>c. 202<br>d. 3CH4<br>​
    5·1 answer
  • A chemist wants to find Kc for the following reaction at 709 K:2NH3(g) + 3 I2 (g) ----&gt; 6HI(g) + N2(g)
    5·1 answer
  • What properties of carbon's abiliyu to form different large and complex structures ?
    9·1 answer
  • John Dalton performed an experiment showing that combining 40 grams of oxygen with 30 grams of carbon will form 70g carbon monox
    13·1 answer
  • What is true about Carbon-14 and Carbon-12?
    13·1 answer
  • Write the IUPAC names for the following compounds.
    7·1 answer
  • What do carbon, hydrogen, and oxygen atoms have in common?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!