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WARRIOR [948]
3 years ago
13

What is the pH of a solution with a concentration of 5.2 x 10-8

Chemistry
1 answer:
BartSMP [9]3 years ago
5 0

Answer:

7.28

Explanation:

-log(5.2x10^-8) = 7.28

- Hope that helped! Please let me know if you need further explanation.

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. An atom of nitrogen has an atomic
GrogVix [38]

Here's the Answer !

Atomic number = no. of electrons = no. of protons, therefore :

  • no. of electrons = 7

  • no. of protons = 7

and mass number = no. of protons + no. of neutrons

so,

  • 7 + no. of neutrons = 14

  • no. of neutrons = 7
5 0
3 years ago
Which statement is best described as a atom
myrzilka [38]

a core of protons and neutrons surrounds by electrons

6 0
3 years ago
I need help
Liono4ka [1.6K]

Answer:

d and e - Sodium and antimony

Explanation:

The atomic numbers remain the same, while the mass numbers change (because neutrons are being added or taken away).

sodium has an atomic number of 19 and a mass number of 39 - in d, it has an atomic number of 19 but a mass number of 40. therefore, it is an isotope

antimony has an atomic number of 51 and a mass number of 121.60 - in e, it has an atomic number of 51, but a mass number of 123. therefore, it is an isotope

6 0
3 years ago
What is the molarity of Li in a solution that contains of 46.552ppm lithium ferrocyanide Li3fe(cn)6
malfutka [58]

Answer:

hgfdjsuejssj_uyghgjiyr656⁸8⁴83jbv

3 0
2 years ago
If a gas occupies 79.5 mL at -1.4°C, what temperature, in Kelvin, would it
Anna35 [415]

Answer:

121 K

Explanation:

Step 1: Given data

  • Initial volume (V₁): 79.5 mL
  • Initial temperature (T₁): -1.4°C
  • Final volume (V₂): 35.3 mL

Step 2: Convert "-1.4°C" to Kelvin

We will use the following expression.

K = °C + 273.15 = -1.4°C + 273.15 = 271.8 K

Step 3: Calculate the final temperature of the gas (T₂)

Assuming ideal behavior and constant pressure, we can calculate the final temperature of the gas using Charles' law.

V₁/T₁ = V₂/T₂

T₂ = V₂ × T₁/V₁

T₂ = 35.3 mL × 271.8 K/79.5 mL = 121 K

5 0
2 years ago
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