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Fudgin [204]
3 years ago
5

A solution has a concetration of 0.3mol/dm3 of sodium hydroxide .what volume of

Chemistry
1 answer:
HACTEHA [7]3 years ago
7 0

Answer:

Ba(OH)2 + H2SO4 ------> BaSO4 + 2H2O

1) Moles of Ba(OH)2 = moles of H2SO4 = 0.025L x 2)0.02M = 5.0 x 10^-4M

Concn of Ba(OH)2 in g/L = 5.0 x 10^-4M x 171.33g/mol = 0.086g/mol

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Help if possible!<br> Picture attached with the problems.
MAVERICK [17]
1. 1 M , 2 M , 1 M
2. 10 mol , 0.1 mol , 0.5 mol
3. 0.5 L , 6.6 L , 5/21 L

M = mol/L
8 0
3 years ago
12) Which particle has the most energy? A) ice B) water C) steam D) there is no difference in particle energy
sladkih [1.3K]

C) Steam has the most energy.

Steam has more energy than Ice and Water because the particles in ice are close together, the particles in water flow more loosely than in a solid like ice and in steam they are very active.

I hope that helps u understand :)

6 0
3 years ago
Read 2 more answers
What is the definition of energy?​
Irina18 [472]

Answer:

Explanation:

the strength and vitality required for sustained physical or mental activity.

7 0
3 years ago
Did the subscripts (the little numbers<br>​
olga_2 [115]
Hey, you didn’t finish your answer!
Can you finish it so I can help you? Thanks!
4 0
4 years ago
Which of the following reasons correctly explains the color changes that take place when ethylenediamine (C2N2H8) is added to th
pickupchik [31]

Answer:

The water ligands surrounding the cobalt metal center are being replaced by ethylenediamine and chloride ligands which results in a different crystal field splitting. Thus, the energy associated with electron transitions between the do-orbitals will differ for the two compounds showing a color change.

Explanation:

The five d-orbitals are usually degenerate. Upon approach of a ligand, the d-orbitals split into two sets of orbitals depending in the nature of the crystal field.

The magnitude of crystal field splitting is affected by the nature of the ligand. Ligands having filled p-π orbitals such as ethylenediamine lead to greater crystal field splitting.

The change in the colour that takes place when ethylenediamine is added to the solution of cobalt(II) chloride occurs due to a different crystal field splitting pattern. Thus, the energy associated with electron transitions between the d-orbitals now differ for the two compounds showing a color change.

7 0
3 years ago
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