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lawyer [7]
3 years ago
10

When 1 molecule of calcium phosphate is added to water, what and how many ions are formed? remember that ions are charged and so

you must indicate the correct charge on each ion to receive credit for this question?

Chemistry
1 answer:
Fiesta28 [93]3 years ago
3 0

Asnwer :When 1 molecule of calcium phosphate is added to water, total 5 ions are formed 3 ions of Calcium(Ca^{2+}) and 2 ions of Phosphate(PO_{4}^{3-})

Explanation : When Calcium phosphate is added to water it gets dissociated into ions. Calcium phosphate (Ca_{3}(PO_{4})_{2}) dissociates into 3 ions of Calcium Ca^{2+} and 2 ions of Phosphate PO_{4}^{3-}.

Dissociation equation of calcium phosphate is :

1 Ca_{3}(PO_{4})_{2} \leftrightarrow 3 Ca^{2+} + 2PO_{4}^{3-}

From the dissociation equation we can conclude that total 5 ions are formed when 1 molecule of calcium phosphate is added to water.

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A) Reaction with NaI :

Reaction of alkyl halide with NaI is known as Finkelstein Reaction . The acetone is used as solvent . It involves bimolecular nucleophillic substitution rmechanism (SN²) . There is replecement of one halogen with other occurs .

The incoming Nucleophile(Nu⁻) (halide) attacks on carbon from back side , while the leaving group (halide) leaves the compound from front side , simultaneously. The product so formed have is inverted .(Image)

NaI releases I⁻ ion which act as nucelophile and attacks on C1 carbon and Br⁻ from C1 carbon is released . Out of two bromines at C1 and C4 carbons , C1 is primary carbon which is less sterically hindered while C-4 is tertiary carbon and sterically hindered . So it is easy for incoming Nu⁻ to attack on C1 carbon .So Br⁻ is repleaced by I⁻.

1,4-dibromo-4-methylpentane + NaI → 4-bromo-1-iodo-4-methylpentane

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The product formed as a result is 5-bromo-2-ethoxy-2-methyl pentane.

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