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Leya [2.2K]
3 years ago
5

From the attitude Douglass expresses in the passage,

Chemistry
2 answers:
Katena32 [7]3 years ago
8 0

Answer:

Thrilled

Explanation:

Took the test.

Ivanshal [37]3 years ago
8 0

Answer:

the answer is thrilled

Explanation:

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Which of the following is not a property of a buffer solution? a) It is a mixture of a weak acid and its conjugate base. b) Resi
m_a_m_a [10]

Answer:

e) pH is independent of concentration.

Explanation:

a) It is a mixture of a weak acid and its conjugate base. <em>TRUE. </em>A buffer is defined as a mixture of a weak acid and its conjugate base or a weak base and its conjugate acid.

b) Resists pH changes because it reacts with added acid or base. <em>TRUE. </em>Thermodynamically, the reaction of added acid or base is faster with the buffer mixture than with H⁺ or OH⁻ ions of the solutions.

c) The maximum buffer capacity is at pH = pKa. <em>TRUE. </em>The buffer capacity is pka±1. For this, buffer capacity is maximum in pka.

d) pH is dependent on the solution ionic strength and temperature. <em>TRUE.</em> Ionic strength and temperature are factors that influence concentrations of ions in solutions as the H⁺ ion that is the responsible

e) pH is independent of concentration. <em>FALSE. </em>pH in a buffer depends completely of concentrations of the acid and its conjugate base or vice versa.

I hope it helps!

8 0
3 years ago
How many elements have been discovered?<br> A. 110 <br> B. less than 110 <br> C. more than 110
riadik2000 [5.3K]
There are 115 known elements as of today (Feb. 13, 2016)

so, 'C' is the correct answer
8 0
3 years ago
Read 2 more answers
What is the lon # for Beryllium (Be)?
QveST [7]

Answer:

Number: 4

Charge: +2

Element: Beryllium

I hope this helps!! :)

3 0
3 years ago
PLEASE HELP ASAP!!!!!!!!
MaRussiya [10]

Answer:

You need to count all the atoms on each side of the chemical equation. once you know how many of each type of atom you have,you can only change the coefficient. (the numbers in front of the atoms or compounds

7 0
2 years ago
The mass in g of 3 moles Al .
Damm [24]

Answer:

81 gm

Explanation:

The mass of 1 mole is 27 g

So, Mass of 3 moles of Aluminium would be 3 × 27 = 81 gm..Thus mass of 3 Moles of Aluminium is 81 gm.

6 0
3 years ago
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