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aliina [53]
3 years ago
8

Please help me, I’ll mark you the highest you can get

Chemistry
1 answer:
Anton [14]3 years ago
7 0

Sorry It isnt clear so hard to see

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What is the solubility of MgCO₃ in a solution that contains 0.080 M Mg²⁺ ions? (Ksp of MgCO₃ is 3.5 × 10⁻⁸)
Alchen [17]

Answer: 4.4 x 10^-7

Explanation:

The dissociation equation for this reaction is:

MgCO3 (s) → Mg+2 (aq) + CO3-2 (aq)

\text { So, } k_{s p}=(x+0.08) x (Here 0.08 >>> x )

\begin{aligned}\Rightarrow 3.5 \times 10^{-8} &=0.08 \times x \\\Rightarrow x &=\frac{3.5}{0.08} \times 10^{-8} \\&=4.37 \times 10^{-7} \\\Rightarrow x & \approx 4.4 \times 10^{-7} \mathrm{~M}\end{aligned}

So the solubility MgCO₃ in a solution that containing 0.080 M Mg²⁺ is 4.4 x 10^-7

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2 years ago
how long does it take (in minutes) for light to reach Saturn from the sun , a distance of 1.466x10^9 km
vampirchik [111]
The _____ along a gene specifies the type of protein that will be produced.            ^                                                                                                                                         9 k
3 0
3 years ago
Calculate the molarity of solution of "sodium sulfate" that contains 5.2 grams sodiums sulfate diluted to 500mL
wlad13 [49]

Taking into account the definition of molarity, the molarity of solution of sodium sulfate is 0.0732 \frac{moles}{liter}.

<h3>Definition of molarity</h3>

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

Molarity=\frac{number of moles}{volume}

Molarity is expressed in units \frac{moles}{liter}.

<h3>Molarity of solution of sodium sulfate.</h3>

In this case, you have:

  • number of moles of sodium sulfate= 5.2 grams\frac{1 mole}{142 grams} = 0.0366 moles (being 142 g/mole the molar mass of sodiums sulfate)
  • volume= 500 mL= 0.5 L (being 1000 mL= 1 L)

Replacing in the definition of molarity:

Molarity=\frac{0.0366 moles}{0.5 L}

Solving:

Molarity= 0.0732 \frac{moles}{liter}

Finally, the molarity of solution of sodium sulfate is 0.0732 \frac{moles}{liter}.

Learn more about molarity:

brainly.com/question/9324116

brainly.com/question/10608366

brainly.com/question/7429224

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2 years ago
The fictional element “Nt” contains atoms with two valence electrons. Which type of intermolecular force is most likely responsi
tatuchka [14]
Ion-ion forces

Nt has two valence electrons, and bonds with F to form NtF2. This means that the ion form of Nt is Nt2+. This means that NtF2 is an ionic compound.
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3 years ago
When white light is refracted through an object, you see many different colors because ________. (2 points)
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The light bends enough to separate the colors, the object causes the light to change directions.
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3 years ago
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