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
Pani-rosa [81]
2 years ago
6

Which wave has the greatest distance from trough to trough?

Chemistry
1 answer:
mylen [45]2 years ago
8 0

Answer:

a

Explanation:

You might be interested in
If you have 120. mL of a 0.100 M TES buffer at pH 7.55 and you add 3.00 mL of 1.00 M HCl, what will be the new pH? (The pKa of T
Simora [160]

Answer:

The new pH after adding HCl is 7.07

Explanation:

The formula for calculating pH of a buffer is

pH = pKa + log([Conjugate base]/[Acid])

<u>Before adding HCl,</u>

         7.55 = 7.55 + log([Conjugate base]/[Acid])

⇔      log([Conjugate base]/[Acid])  = 0

⇔     [Conjugate base] = [Acid] = 1/2 x 0.100 = 0.05 M

⇒ Mole of Conjugate base = Mole of Acid = 0.05 M x 0.12 mL = 0.006 mol

<u>After adding HCl (3.00 mL, 1.00 M)</u>

⇒ Mole of HCl = 0.003 x 1 = 0.003 mol)

New volume solution is 120 m L+ 3 mL = 123 mL

HCl is a strong acid, it will convert the conjugate base to acid form, or we can express

Mole of new Conjugate base = 0.006 - 0.003 = 0.003 mol

                ⇒ Concentration = 0.003/0.123 M

Mole of new Acid form = 0.006 + 0.003 = 0.009 mol

                ⇒ Concentration = 0.009/0.123 M

Use the formula

pH = pKa + log([Conjugate base]/[Acid])

    = 7.55 + log(0.003 / 0.009) = 7.07

8 0
3 years ago
What reagent could be used to separate Br- from CH3 CO2 when added to an aqueous solution containing both.
Serjik [45]
C is the answer for this!
6 0
3 years ago
Read 2 more answers
Why would fluorine, chlorine, and bromine be placed in the same group (the halogens) in the periodic table of elements? (1 point
inna [77]

D. They share chemical properties.

7 0
3 years ago
The electron configuration that belongs to the atom with the lowest first ionization energy is?
sasho [114]

The electron configuration that belongs to the atom with the lowest first ionization energy is francium.

<h3>What is ionization energy? </h3>

Ionization energy is defined as the minimum amount of energy required to remove the most loosely electron present in outermost shell.

<h3>Ionization energy across period</h3>

Ionization energy increase as we move from left to right in the period. This can be explained as when we move from left to right along period new electron is added to the same shell which increase the nuclear charge. Hence results int he decrease in size. Due to this decrease in size more energy is required to remove electron from outermost shell.

<h3>Ionization energy along group</h3>

Ionization energy decrease as we move from top to bottom along group. This can be explained as we move from top to bottom new electron is added to new shell. Due to addition of new shell the size of atom increases which results in the decrease in the nuclear charge. Due to this less amount of energy is needed to remove an electron.

Thus, we concluded that the electron configuration that belongs to the atom with the lowest first ionization energy is francium.

learn more about ionization energy:

brainly.com/question/1602374

#SPJ4

4 0
1 year ago
When an atom is in the ground state what must happen for the atom to be in an excited state? what must happen for this atom to r
scoray [572]
Hi there

In order for an electron to jump into a higher energy state, it must first absorb energy (heat, light, etc).

When an electron goes back down to the ground state from the excited state, it emits energy usually in the form of a photon.

i hope this helps

4 0
2 years ago
Other questions:
  • What type of matter would vaporization and condensation fall under? Solid Liquid or gas?
    13·1 answer
  • The photodissociation of ozone by ultraviolet light in the upper atmosphere is a first-order reaction with a rate constant of 1.
    5·1 answer
  • Part ii 1. the solubility of _____________ is least affected by temperature. (name of substance)
    5·1 answer
  • The molar mass of the compound was found to be 30.069 g/mol. what is the molecular formula? express your answer as a chemical fo
    10·1 answer
  • Which of the following is an example of how pictures of a planet's surface can provide evidence about the planet's natural resou
    5·1 answer
  • The clown, which your grandparents hire for your 18th birthday, is filling balloons with helium (He) to a volume of 2500 mL.
    14·1 answer
  • 2. Calculate the density of a liquid in a beaker. The beaker has a mass of 15 grams when empty. The beaker plus an unknown liqui
    10·2 answers
  • 1 Point
    10·1 answer
  • How many oxygen atoms are there in 5 molecules of Al2(SO4)?
    11·1 answer
  • Please help me i need this asp
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!