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
krek1111 [17]
3 years ago
5

Calculate the concentration of hydrogen ions in a healthy person’s blood that has a pH of 6.40.

Chemistry
1 answer:
adoni [48]3 years ago
4 0

Answer:

[H⁺] = 3.98×10⁻⁷ M

Explanation:

Given data:

pH of blood = 6.40

Hydrogen ion concentration = ?

Solution:

Formula:

pH = - log[H⁺]

by rearranging this formula,

[H⁺] =  10⁻(pH)

By putting values,

[H⁺] = 10 ⁻⁶°⁴⁰

[H⁺] = 3.98×10⁻⁷ M

You might be interested in
Find the moler mass of P2S3
Anon25 [30]

Answer:

158.2 g/mol

Explanation:

8 0
3 years ago
PLEASEEEE HELLPPPP ASAP
sergij07 [2.7K]
The answer is A

According to research I have done, pure solids and liquids are not included in the equilibrium constant expression. If the concentration of a reactant in aqueous solution is increased, the position of equilibrium will move in the direction which minimises the effect of this increase in concentration, by using the added component up, to decrese it's concentration again.
5 0
3 years ago
Which of these carbohydrates is a monosaccharide maltose fructose cellulose or lactose
GenaCL600 [577]
Your answer should be fructose! :)

7 0
3 years ago
Read 2 more answers
What is the zeff of carbon ??????<br>plz bata do​
nasty-shy [4]

Answer :  La carga nuclear efectiva (Zef) es la carga positiva neta experimentada por un electrón en un átomo polielectrónico. El término "efectiva" se usa porque el efecto pantalla de los electrones más cercanos al núcleo evita que los electrones en orbitales superiores experimenten la carga nuclear completa

Explanation:

3 0
3 years ago
Why do you think forensic scientists are so careful that the tests they do are sensitive, reproducible, and specific?
mario62 [17]

Critical Thinking Questions

1. Why do you think forensic scientists are so careful that the tests they do are sensitive, reproducible, and specific? What might happen if they were less careful about this?

They have to be careful to ensure as much accuracy as possible.

2.Which type of evidence do you think is most useful in an investigation? Why?

Physical evidence would probably be most important because it is the best way to connect someone directly with that crime.

3.Why do you think that forensic scientists continue to look for class characteristics given their limitations?

Class characteristics are good in court because it provides details of different aspects of the crime.


4 0
3 years ago
Read 2 more answers
Other questions:
  • Which correctly describes elements in the same group? select one:
    15·1 answer
  • Calculating the volume of 0.05mol/dm3 KOH is required to neutralise 25.0cm3 of 0.0150mol/dm3 HNO3
    9·1 answer
  • How many millimeters (mm) is the length of a standard table if it is
    7·1 answer
  • Use the reactions below and their equilibrium constants to predict the equilibrium constant for the reaction 2A(s)⇌3D(g). A(s) ⇌
    11·1 answer
  • A solution of CuSO4 is labelled 0.01 M. How much CuSO4 in grams, must be used to make 1 liter of solution?
    11·1 answer
  • Identify the structure that contains the inherited instructions that determine the different color patterns in these snakes
    8·1 answer
  • [10 pts]Iron and vanadium both have the BCC crystal structure and V forms a substitutional solid solution in Fe for concentratio
    5·1 answer
  • calculate the amount of hydrogen sulphide that would be liberated by the action of sulphuric acid on 4.4 gram of ferrous sulphid
    14·1 answer
  • What is the coefficient for water after the equation is balanced?
    10·1 answer
  • What is wrong with this chemical<br> equation - N2 + O2 → 2N20,
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!