You want to slow down the following reaction:

G the normal range of the ph of blood is between 7.35 and 7.45; variations beyond this range have significant health implication

Fiesta28 [93]

Answer : the hydrogen ion concentrations for pH = 7.35 and pH = 7.45 are 4.46 x 10⁻⁸ M and 3.54 x 10⁻⁸ M respectively.

When the pH of a solution is less than 7, the hydrogen ion concentration is higher and therefore the solution is acidic.

On the other hand, when the pH of a solution is greater than 7, hydroxide ion concentration is higher and the solution acts as a base.

The normal pH range of blood is given as 7.35 - 7.45 which is greater than 7. That means blood is slight basic in nature.

Let us find hydroxide ion concentration of blood.

$pH + pOH = 14$

$7.35 + pOH = 14$

$pOH = 6.65$

$pOH = - log [OH-]$

$[OH-] = 10^{-6.65}$

$[OH-] = 2.24 \times 10^{-7}$

Ionic product of water is written as,

$[H+] [OH-] = 1 \times 10^{-14}$

Let us plug in the calculated value of [OH-]

$[H+] = \frac{1 \times 10^{-14}}{2.24 \times 10^-7} = 4.46 \times 10^{-8} M$

The hydrogen ion concentration for pH = 7.35 is 4.46 x 10⁻⁸ M

Calculation of [H+] for pH = 7.45

pOH = 6.55

[OH-] = 2.82 x 10⁻⁷

$[H+] = \frac{1 \times 10^{-14}}{2.82 \times 10^-7} = 3.54 \times 10^{-8} M$

Similarly, for pH = 7.45, we get hydrogen ion concentration of 3.54 x 10⁻⁸ M.

8 0

3 years ago

In a solution, what is the substance that does the dissolving called?

Soloha48 [4]

Answer and Explanation:

The substance that does the dissolving (or dissolves in the solution) is the <u>solute</u>.

- The solute is the substance that is being dissolved

The substance that makes the solute dissolve is called the <u>solvent.</u>

<u></u>

<em><u>#teamtrees #PAW (Plant And Water)</u></em>

<em><u>I hope this helps!</u></em>

5 0

3 years ago

What is the correct formula for the Ksp of the reaction Cu2CO3 (s) mc027-1.jpg 2Cu+ (aq) + CO3 2– (aq)? Ksp = [Cu+ ][CO3 2– ] Ks

jekas [21]

Ksp = [Cu^+]^2 [CO3^2-]

7 0

4 years ago

Read 2 more answers

In converting between units, it is never necessary to use more than one conversion factor. A. True B. False

lakkis [162]

False, in converting between units, it is never necessary to use more than one conversion factor.

6 0

3 years ago

Read 2 more answers

GO FAST / WILL MARK BRAINLIEST / WILL GIVE THANKS / WILL GIVE 5 STARS

Nikitich [7]

<h2>question 1</h2>

Mg + 2HCl→ MgCl2 + H2

after balancing the coefficient for H2 is 1

<em><u>explanation </u></em>

since 1 is in front of H2 it is the coefficient for H2

question 2

the reaction is single replacement

<u><em>explanation</em></u>

because single replacement occurs when one element replaces another.
for the reaction of Mg + 2HCl→MgCl2 +H2 Chlorine

<h2> Question 3</h2>

The coefficient of H2 is 3

<em><u>explanation</u></em>

from the balanced chemical reaction
that is N2 +3H2 →2NH3 the coefficient in front of H2 is 3

<h2 /><h2> question 4</h2>

N2 + 3H2 → 2NH3 is a synthesis reaction

<u><em>explanation; </em></u>

Synthesis reaction occurs when two or more reactants combine to form a single product.

N2 reacted with H2 to form NH3 (ammonia) hence it is an example of synthesis reaction.

<h2>question 5</h2>

The sign that shows that a chemical reaction has occurred is color change, change in temperature and formation of a gas (bubble)

color change change in temperature, formation of precipitate and formation of a gas(bubble) is always an indicator of an occurrence of a chemical change.

<h2>Question 6</h2>

H2S is not a strong acid

<u><em>explanation</em></u>

strong acid undergo a complete electrolysis when dissociate in water for example HNO3
weak acid undergo a partial electrolysis when dissociate in water for example H2S

<h2>question 7</h2>

feels slippery is not a property of an acid

<u><em>explanation</em></u>

feel slippery is an example of a base
The properties of an acid are

sour taste
changes the color of an indicator
usually react with metal among others

<h2> Question 8</h2>

detergent with a PH of about 10 is a <u><em>basic</em></u>

<em><u>explanation</u></em>

Base has a Ph which range from 7.1 to 14
since the detergent has a PH of 10 is a basic

<h2>Question 9</h2>

The balanced chemical equation for the synthesis of NaBr is

2Na + Br2 →2 NaBr

<u><em>explanation</em></u>

This is because the equation obey the law of mas conversation

for example it has 2 atoms of Na in both reactant and product side

<h2>Question 10</h2>

reacts with metals is not a common property of a base

<u><em>Explanation</em></u>

base has

bitter taste,
feels slippery
turn red litmus paper blue among others

<h2> question 11</h2>

Hydrochloric acid have a PH in 0-6 range

<u><em>explanation</em></u>

HCl is a strong acid

acid has a PH which are below PH of 7 hence HCl has a PH which range from 0-6

<h2>Question 12</h2>

A brand shampoo which has a PH between 5 -6 is a weak acid

generally acid has a PH below 7
weak acid has a PH of between 5 -6 therefore brand shampoo is a weak acid

<h2>question 13</h2>

The PH that indicate a solution of a base is a PH of 12

<em><u>Explanation</u></em>

base has a PH which range between 7-14, hence a PH of 12 indicate that it is a Base

7 0

3 years ago