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otez555 [7]
3 years ago
9

What is the pH of 2.5×10 to the power of negative2IM solution of HCL?

Chemistry
1 answer:
Archy [21]3 years ago
3 0

Answer:

pH=1.6

Explanation:

Recall that pH= -log [H+]

Plug the 2.5 x 10^-2 into [H+].

-log (2.5 x 10^2)

=1.6

Hoped this helped!

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“Representative elements”? Which groups of the periodic table contain the “representative elements”?
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S- and P-Block elements are known as Representative elements.

Groups 1-2 and Groups 13-18

4 0
2 years ago
Typically, water runs through the baseboard copper tubing and, therefore, fresh hot water is constantly running through the pipi
Aleksandr [31]

Answer: -

3.3° C

Explanation: -

Mass of water m = 180.5 g

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Specific heat is defined as the heat required to raise the temperature of the unit mass of a given substance by 1 C.

Specific heat of water Cp = 4.184 (J/g)⋅∘C

Using the formula

Q = m x Cp x ΔT

We get temperature change ΔT = Q / (m x Cp)

= 2494 J / ( 180.5 g x 4.184 (J/g)⋅∘C

= 3.3° C

Thus the temprature change, (ΔT), of the wateris 3.3 °C if 180.5 g of water sat in the copper pipe from part A, releasing 2494 J of energy to the pipe

6 0
3 years ago
Please help
lora16 [44]
Find the molar mass of CH3 and divide that by 45.0. That should give a whole number and then mult that whole number by CH3 to find molecular formula to get like ( incorrect ex: C2H6) which is mult by 2
6 0
2 years ago
An acetylide anion is more stable than either a vinylic or alkyl anion due to Group of answer choices the greater stability of a
sashaice [31]

Answer:

the stabilization of the negative charge in orbitals with higher s character

Explanation:

Acetylide anion is a carbon anion compound or popularly called carbanion. Now Acetylide anion is sp hybridized. However acetylide anion tends to be more acidic as we move from sp³ to sp, hence acidicity increases, which makes sp to have the highest acidity and become the most  stable.

So, we can conclude that the acetylide anion is more acidic due to the stabilization of the negative charge in orbitals with higher s character and  as the s character increases, acidic nature of acetylide anion also increases.

5 0
2 years ago
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Answer:

40'0'

Explanation:

X is smaller than |-40|

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2 years ago
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