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
irinina [24]
3 years ago
6

Which buffer system is found in the human body?

Chemistry
2 answers:
AveGali [126]3 years ago
7 0

Answer:

Bicarbonate buffer system

Explanation:

The human body uses a bicarbonate buffer system to maintain blood pH at a reasonable level. Without it, we'd be dead.

STatiana [176]3 years ago
7 0

Answer: C. bicarbonate buffer system

The bicarbonate buffer system helps to regulate the pH levels of our body.

A healthy pH range is about 7.35 to 7.45.

Hope this helps!

You might be interested in
Vaporization is the reverse of
IRINA_888 [86]
 <span>Since Vaporization is when liquid turn to gas then the opposite of that would be Condensation because condensation is when gas turns to liquid <-- see complete opposites :D</span>
3 0
3 years ago
500 mL of a solution contains 1000 mg of CaCl2. Molecular weight of CaCl2 is 110 g/mol. Specific gravity of the solution is 0. C
dangina [55]

Answer:

a) 0,2% w/v

b) r=500

c) 0,0182 M

d) 0,0145 m

e) 0,0137 equivalents

Explanation:

a) % w/v means mass of solute in grams per 100 mililiter of solution. Thus:

%w/v= \frac{1,000 g CaCl2}{500mL}×100 = 0,2%w/v

b) Ratio strength is a way to express concentration.  For w/v is in 1g of solute <em>r</em> mililiters of solution have. Thus, r = 500 because we have in the first 1 g of CaCl₂ in 500 mL of solution.

c) Molarity is moles of solute per liter of solution, thus:

1,000 g of CaCl₂ × \frac{1mol}{110g} = 9,09×10⁻³ moles of CaCl₂

500 mL of solution  × \frac{1L}{1000mL} = 0,500 L of solution

M = \frac{9,09x10^{-3} moles }{0,500 L} = 0,0182 M

d) Molality is moles of solute per kg of solution.

Specific gravity is the ratio between density of the solution and density of a reference substance (Usually water). With a specific gravity of 0,8:

kg of solution = 0,500 L of solution × \frac{0,8 kg}{1L} =<em> </em><em>0,625 kg of solution</em>

m = \frac{9,09x10^{-3}moles }{0,625 kg} = 0,0145 m

e)  In a salt, equivalents are the number of moles ables to replace one mole of charge. In CaCl₂ is ¹/₂ because with  ¹/₂ moles of CaCl₂ it is possible to replace 1 mole of charges. Thus, in 1,5 L there are:

1,5 L ×\frac{0,0182 CaCl2 moles}{1L} × \frac{1equivalent}{2 moles} = 0,0137 equivalents

I hope it helps!

7 0
3 years ago
What is the speed of a man walking for 30 meters and he walked for 5 seconds ​
aliya0001 [1]

Answer:

<h2>6 m/s</h2>

Explanation:

The speed of the man can be found by using the formula

v =  \frac{d}{t}  \\

d is the distance

t is the time taken

From the question we have

v =  \frac{30}{5}  \\

We have the final answer as

<h3>6 m/s</h3>

Hope this helps you

8 0
3 years ago
The first element on the periodic table of elements is carbon.<br><br> A. True<br> B. False
ololo11 [35]

False because Hydrogen is the first

6 0
3 years ago
Read 2 more answers
How many atoms are in 6.7 moles of iron?
sineoko [7]

Answer:

4.034x10^24 atoms

Explanation:

6.7 x 6.023x10^23 = 4.034x10^24 atoms

6 0
3 years ago
Read 2 more answers
Other questions:
  • Given the following reactions and subsequent ∆H values, what is the ∆H for the reaction below? 4CO2(g) + 2H2O(g) 2C2H2(g) + 5O2(
    11·1 answer
  • Three apprentice tailors (X, Y, and Z) are assigned the task of measuring the seam of a pair of trousers. Each one makes three m
    11·1 answer
  • During a reaction, a halogen chemically combines with a Group 1 element to form a compound. how does this reaction occur, based
    6·2 answers
  • HELP ME PLZ!!! I really dont know this!!! What characteristic of metals makes them good electrical conductors? -They have mobile
    13·1 answer
  • How did scientist discover that earths outer core is liquid
    9·1 answer
  • Based on their electronegativities, you would expect ____ elements to pull on electrons more strongly than ______ elements.
    15·1 answer
  • 1. El sorbitol, utilizado como edulcorante en algunos alimentos "sin azúcar" tiene un peso molecular de 182 g/mol y una composic
    13·1 answer
  • What is the name for CH 3 CH 2 COCHCH 3 CH(CH 3 ) 2 ?
    13·1 answer
  • ¿Qué tipos de contaminantes identificamos?¿cuál de ellos tiene mayor concentración de los gases?¿Qué sucedió con la calidad del
    12·1 answer
  • 5 A Punnett square is shown below. The domin
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!