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erastova [34]
3 years ago
11

Predict what precipitate will be formed using the solubility rules. then write the net ionic equation for the formation of the s

olid. balance the net equation.
CaCl2(aq) + K3PO4(aq)

—————————
i’ve already got a majority of the net ionic equation, CaPO4(aq) + Cl2K3(aq) = ?
but i don’t know what the solid will end up being
Chemistry
1 answer:
babymother [125]3 years ago
7 0

<u>Answer: </u>The net ionic equation for the following precipitation reaction will be 3Ca^{2+}(aq.)+2PO_4^{3-}(aq.)\rightarrow Ca_3(PO_4)_2(s)

<u>Explanation:</u>

Precipitation reaction is defined as the reaction in which two soluble salts combine in aqueous state to form one insoluble product known as a precipitate.

For the reaction of calcium chloride and potassium phosphate, the reaction follows:

3CaCl_2(aq.)+2K_3PO_4(aq.)\rightarrow Ca_3(PO_4)_2(s)+6KCl(aq.)

The ionic equation for the above reaction follows:

3Ca^{2+}(aq.)+6Cl^-(aq.)+6K^+(aq.)+2PO_4^{3-}(aq.)\rightarrow Ca_3PO_4(s)+6K^+(aq.)+6Cl^-(aq.)

To write the net ionic equation, spectator ions are not written because these ions lie on both the sides of the reaction and does not affect equilibrium. These ions are ignored in writing the net ionic equation.

Hence, the net ionic equation becomes:

3Ca^{2+}(aq.)+2PO_4^{3-}(aq.)\rightarrow Ca_3(PO_4)_2(s)

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3 years ago
An X-ray beam with λ = 157 pm incident on the surface of a crystal produced a maximum reflection at an angle of θ = 28.5 ∘. Assu
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Answer:

The separation between layers of atoms in the crystal is 164.52 pm.

Explanation:

Formula used

n \lambda = 2d\sin \theta (Bragg's law)

Where :

n = an order of reflection (integer)

\lambda = wavelength of the beam incident X-ray

d = spacing between the layer

θ = incident angle ( angle between ray and scatter plane)

We have :

λ = 157 pm

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n = 1

d = ?

1\times 157 pm= 2d\sin (28.5^o) (Bragg's law)

d=\frac{1\times 157 pm}{2\times \sin (28.5^o)}=164.52 pm

The separation between layers of atoms in the crystal is 164.52 pm.

8 0
3 years ago
How many liters is 3.3 moles of a gas?
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Answer:

224.1

Explanation:

3 0
2 years ago
A sample of a compound contains 60.0 g C and 5.05 g H. Its molar mass is 78.12 g/mol. What is the compound’s molecular formula
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The standard atomic weight of a C is 12, and the standard atomic weight of a H is 1.  So to find molar ratio of C and H in the compound: 60.0/12=5, 5.05/1=5. This means the molar ratio of C and H is 5:5, thus 1:1.  Assuming the molecular formula is CnHn, to find molar mass: 12n + 1n = 78.12.  n=78.12/(12+1) = 6.  So the compound's molecular formula is C6H6, benzene.
4 0
3 years ago
Read 2 more answers
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