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rodikova [14]
3 years ago
15

50.0 grams of KCl is dissolved in water to make a 4.00 L

Chemistry
1 answer:
xeze [42]3 years ago
8 0

Answer:0.1677M

Explanation:

Molarity=moles/volume

Number of moles =mass/molar mass

Once you get the number of moles, you apply it to the molarity formula.

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Seashells can be most easily separated from sand because of differences in which property?density
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Write the formula for a complex formed between zn2 zn2 and nh3nh3 with a coordination number of 3.
fredd [130]

Triammine zinc sulfate is the formula for a compound produced between zn2 and nh3 with a coordination number of 3.

<h3>Steps</h3>

Zinc atoms are present in the +2 oxidation state in zinc sulfate (ZnSO4).

Thus, a coordination complex formed by three ammonia ligands and zinc sulfate can be shown below.

NH3 + ZnSO4 = [Zn(NH3)] SO4

In its ionic form, this equation can be expressed as

Zn²⁺ + 3NH₃ = [Zn(NH₃)₃]²⁺

<h3>Coordination number: what is it?</h3>

The number of atoms, ions, or molecules that a central atom or ion in a complex, coordination compound, or crystal holds as its closest neighbors.

<h3>What is a good illustration of a coordination number?</h3>

For instance, [Cr(NH3)2Cl2Br2] has the core cation Cr3+, which is referred to as hexacoordinate and has a coordination number of 6.

learn more about coordination number here

brainly.com/question/12498196

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3 0
2 years ago
Chemistry help on a Lab I did ?
lisov135 [29]
<span>Well #        # Drops of Iron Sulfate             # Drops of Sodium Hydroxide
</span><span>  A1         5     45
  A2        10    40
  A3        15     35
  A4        20     30
  A5        25     25
  A6        30     20
  B1        35     15
  B2        40     10
  B3        45      5
</span>
<span>that's for B, because it says "Iron Sulfate".
which is this equation: FeSO4 (aq) + 2NaOH (aq)  Fe(OH)2 (s) + Na2SO4 (aq)
</span>
<span>FeSO4 (aq) + 2NaOH (aq)  Fe(OH)2 (s) + Na2SO4 (aq)
ratio of FeSO4:NaOH is 1:2,
so you need to moles of NaOH for every mole of FeSO4.
</span>
<span>A1-A6 had precipitate, though less ppt every time. This corresponds to the decrease in the number of NaOH drops At A2 10/1:40/2 the stoichiometric ratio is equal, so you should've seen the post ppt present. But looking at the picture it doesn't look right. I think you might've labelled them wrong, or there is an error somewhere. This fits micro-plate A better.</span><span>
</span>
8 0
3 years ago
Urgent will give brainlist ​
NISA [10]

Answer:

i think that it is C. both

Explanation:

7 0
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