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
expeople1 [14]
3 years ago
7

What is the [H+] of a solution with a pH of 9.40?

Chemistry
1 answer:
LiRa [457]3 years ago
4 0

Answer:

a) 3.98 x 10^-10

Explanation:

Hello,

In this case, for the given pH, we can compute the concentration of hydronium by using the following formula:

pH=-log([H^+])

Hence, solving for the concentration of hydronium:

[H^+]=10^{-pH}=10^{-9.40}\\

[H^+]=3.98x10^{-10}M

Therefore, answer is a) 3.98 x 10^-10

Best regards.

You might be interested in
True/False Indicate whether the sentence or statement is true or false. The number 1 234 000 in scientific notation is equal to
Shalnov [3]
False bc 1.234 x 10^5 is 123400
8 0
3 years ago
The properties of a compound are ____ the properties of the element that form it
Pie
The properties of a compound are different than the properties of the element that forms it
8 0
3 years ago
What is the total number of liters of SO3 produced when 32.0 of SO2 reacts completely
ahrayia [7]
Write  the   chemical  equation   for  reaction
that  is  
2SO2+O2  --->2SO2

find  the   moles  of  SO2   used  =  moles=mass/molar mass  of  so2

=  32g/80g/mol=0.4 moles

by  use  of  reacting  ratio  between  SO2   and  SO3   which   is   2:2  therefore  the  moles  of  so3  is  also =  0.4  moles

STP  1 mole  =  22.4L.
what  about  0.4moles

= 0.4 /1 x22.4=8.96 liters
4 0
3 years ago
Which of the following polyatomic ions will form an ionic compound with a single sodium ion?
vaieri [72.5K]

Answer:

Option B, HCO3 1-

Explanation:

The valence of Sodium ion is +1 and the valence of HCO3 is -1. Thus, sodium ion has an extra electron to be donated to complete its outer shell  while HCO3 needs an electron to complete its outer shell

Hence Na will combine with HCO3 to form NaHCO3

Option B is correct

5 0
3 years ago
Why is an apple an example of matter​
Karo-lina-s [1.5K]

Matter- Anything that occupies space and has mass is called matter.That is they have both mass and volume.

Apple is an example of matter because it occupies space and has mass and volume.

8 0
2 years ago
Other questions:
  • Name 3 flammable liquids that you could use to start a campfire.
    13·1 answer
  • One mole of N2 gas at STP will occupy what volume?
    10·1 answer
  • What is the correct name for ionic compound Cs2S?
    6·1 answer
  • Which of the following statements is a true statement regarding a solution with [H1+] =1x10-5 M and [OH1-]= 1x10-9 M?
    13·1 answer
  • 6. Three ice cubes are placed inside a glass of hot chocolate. Which of the following best
    14·1 answer
  • It was suggested that, because of the jump in numbers, from chlorine to potassium, there was an element missing between them. Wh
    12·1 answer
  • Ii. What is the purpose of the scientific method? (2 points)
    12·2 answers
  • What factors affect the vegetation of a place?
    6·1 answer
  • Iodine-138 decays by beta decay. What element does it produce?
    8·2 answers
  • For the following reactions, write a balanced equation using half-reactions and calculate the voltage to be expected.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!