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
Alisiya [41]
3 years ago
11

PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE H

ELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE SCIENCE HELP PLEASE PLEASE HELP SCIENCE

Chemistry
2 answers:
vesna_86 [32]3 years ago
8 0

Answer:

A. 1.67×10^-24

Explanation:

antiseptic1488 [7]3 years ago
3 0

Answer:

AAAAAAAAAAAAAAAAAAAAAAAAA

You might be interested in
How many moles are in 4.95g of neon?
Tpy6a [65]
0.24529601530251 moles of neon
5 0
4 years ago
Read 2 more answers
How many molecules are in 3.8 mols of copper?
ioda

Answer:

Hi there!

The correct answer is 2.29 x 10^{24} molecules

Explanation:

To convert from the moles to molecules:

1 mole = 6.022 x 10²³ molecules

so basically you multiply 3.8 by 6.022 x 10²³

and you get: 2.29 x 10^{24}

5 0
4 years ago
Solution made up of two or more liquids
Travka [436]
Would milk coffee count?
3 0
4 years ago
What is the volume of 2.1 moles of chlorine gas (Cl2) at standard temperature and pressure (STP)?
lukranit [14]
1 mol --- 22,4 dm³
2,1 mol --- X
X = 2,1×22,4
X = 47,04 dm³ = 47,04 L

C)
3 0
3 years ago
Read 2 more answers
Calculate the ph of the solution resulting from the addition of 85.0 ml of 0.35 m hcl to 30.0 ml of 0.40 m aniline (c6h5nh2). kb
stiv31 [10]

Answer:

pH = 0.81

Explanation:

HCl reacts with aniline, thus:

C₆H₅NH₂ + HCl → C₆H₅NH₃⁺ + Cl⁻

Moles of HCl are:

0.085L × (0.35mol HCl / L) = <em>0.02975mol HCl</em>

Moles of aniline are:

0.030L × (0.40mol HCl / L) = <em>0.012mol aniline</em>

Thus, after reaction, will remain:

0.02975mol - 0.012mol = <em>0.01775mol HCl</em>

Moles of HCl in solution are equal to moles of H⁺, thus, moles of H⁺ are: <em>0.01775mol H⁺</em>

As total volume is 85.0mL + 30.0mL = 115.0mL ≡ <em>0.115L</em>

0.01775mol / 0.115L = 0.1543M

pH of solution = -log[H⁺]

pH = -log 0.1543M

<em>pH = 0.81</em>

<em></em>

3 0
3 years ago
Read 2 more answers
Other questions:
  • Onetaq standard reaction buffer fungal metagenomics
    15·1 answer
  • A scientist wants to speed up a chemical reaction. What are three things that he or she can do to increase the reaction rate? De
    7·2 answers
  • A thin-walled sphere rolls along the floor. What is the ratio of its translational kinetic energy to its rotational kinetic ener
    9·1 answer
  • Can someone help me please I can’t get this hi
    6·1 answer
  • Substance A undergoes a first order reaction A  B with a half- life of 20 min at 25 °C. If the initial concentration of A ([A]◦
    6·1 answer
  • A sample of gas at 30 degrees celcius occuoies 2.5 L at 1.3 atm. What volume will the sample occupyif pressure changes to 2 atm
    9·1 answer
  • Which is an example of gaining a static charge by conduction?
    8·1 answer
  • 19. Which property of the water molecule causes two water molecules to be attracted to each other?
    8·1 answer
  • Aluminum oxide reacts with hydrochloric acid to produce salt. What is the name of the salt produced?
    14·1 answer
  • Using the system of rules for naming binary acids and naming other binary covalent molecules​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!