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Pachacha [2.7K]
3 years ago
7

How many grams of NaOH are in 200 mL of a 3.OM NaOH solution? Na=23 O=16 H=1.01

Chemistry
1 answer:
spin [16.1K]3 years ago
8 0
The answer for your question is H=1.01
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Naturally occurring copper exists in two isotopic forms: 63Cu and 65Cu. The atomic mass of copper is 63.55 amu. What is the appr
Mariulka [41]
To calculate the average atomic weight, each exact atomic weight is multiplied by its percent abundance, then, add the results together.  If the natural abundance of 63Cu is assigned x, the natural abundance of 65Cu is 1-x (the two abundance always add up to 1). So the solution is: (63)(x)+(65)(1-x) = 63.55, 63x+65-65x=63.55, x=0.725=72.5%. The natural abundance of 63Cu is 72.5%, that of 65Cu is 1-72.5%=27.5%.
3 0
3 years ago
PH of 0,035M HCl? How to count if your calculator hasn't got -lg?
IrinaK [193]

<u>Given information:</u>

Concentration of HCl = 0.035 M

<u>To determine:</u>

pH of the solution

<u>Explanation:</u>

Hydrochloric acid, HCl is a strong acid. It will completely dissociate to give H+ and Cl- ions

HCl → H+ + Cl-

Hence the concentration of H+ = Cl- = 0.035M

Now, pH measures the strength of H+ ions in a given solution. It is expressed as:

pH = -log[H+]

pH (HCl) = -log(0.035) = 1.46

Ans: pH of 0.035M HCl is 1.46

6 0
2 years ago
In the equilibrium and concentration gizmo, you learned that you can predict the direction of a reaction by comparing the reacti
max2010maxim [7]

And the significant amount of volume can be differed by its solitude

4 0
3 years ago
What physical properties can be used to separate heterogeneous mixture's?
marysya [2.9K]
Evaporation, distillation, filtration and chromatography
Hope it help you, have a nice day
7 0
2 years ago
When gases dissolve in gases or when liquids and gases dissolve in liquids, _________eventually spreads the particles evenly thr
natulia [17]

When gases dissolve in gases or when liquids and gases dissolve in liquids, particles movement eventually spreads the particles evenly throughout the solvent resulting in a homogeneous mixture.​

Explanation:

When gases dissolve in gases or when liquids and gases dissolve in liquids, particle movement eventually spreads the particles evenly throughout the solvent resulting in a homogeneous mixture.​

Solid particles do not dissolve easily like liquids and gases dissolve. Solid particles when dissolved in solid the particles moves very little. After getting heated and becomes molten then they get mixed.

But in the liquids and gases atoms moves and the particles get eventually spread and also get mixed after cooled.

7 0
3 years ago
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