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Lorico [155]
2 years ago
14

What is the pH of the solution in which the [H+] is 1.0 × 10–4 mol/L ?

Chemistry
1 answer:
ddd [48]2 years ago
5 0
PH is a simplified observation of the acidity of a solution, defined as the -log [H+] (negative logarithm of the hydrogen concentration).

-log[10^-4] = 4

The pH of this solution is 4.
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A student increases the temperature of a 673 cm^3 balloon from 275 K to 460 K.
Kruka [31]

Answer:

1125.75 cm³

Explanation:

We are given;

Initial volume; V1 = 673 cm³

Initial temperature; T1 = 275 K

Final temperature; T2 = 460 K

From Charles law, we can find the new volume from;

V1/T1 = V2/T2

V2 = (V1 × T2)/T1

V2 = (673 × 460)/275

V2 = 1125.75 cm³

8 0
2 years ago
What are the solutions to the quadratic equation 2x2 + 10x - 48 = 0?<br>​
Natali [406]

Answer:

<h2>x = 3 , x= -8</h2>

Explanation:

2x^2+10x-48\\=2\left(x^2+5x-24\right)\\x^2+5x-24\\=\left(x^2-3x\right)+\left(8x-24\right)\\=x\left(x-3\right)+8\left(x-3\right)\\=\left(x-3\right)\left(x+8\right)\\=2\left(x-3\right)\left(x+8\right)\\2\left(x-3\right)\left(x+8\right)=0\\x-3=0\\x = 0+3\\x = 3\\x+8=0\\x+8-8=0-8\\x=-8\\x=3,\:x=-8

8 0
3 years ago
Which of the following compounds is always part of an aqueous solution?
jolli1 [7]
A.water.
An aqueous solution is a solution in water.
Hope this helped :)
5 0
3 years ago
Read 2 more answers
How many molecules are in 21.5G of water
NemiM [27]

Answer:

There are 6.022×1023 molecules in a mole. There are 18.01528 grams of water per mole of water. in 1g water

Explanation:

please Mark my answer in brainlist

6 0
2 years ago
I need help plz this is driving me crazy
Elis [28]
A= 6 
B= 2
C= 1
D= 5
E= 3
F= 4
4 0
3 years ago
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