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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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Which type of data have elements in common but do not fit into rigid rows and columns in a table?.
Talja [164]

Answer: Semi-structured data is a type of data that has some consistent and definite characteristics. It does not confine into a rigid structure such as that needed for relational databases that which is why  it will not fit into row and columns in a table .

Explanation:

6 0
2 years ago
What is the ratio of lactic acid (Ka = 1.37x^10-4) to lactate in a solution with pH =4.29
hram777 [196]

Henderson–Hasselbalch equation is given as,

                                         pH  =  pKa  +  log [A⁻] / [HA]   -------- (1)

Solution:

Convert Ka into pKa,

                                         pKa  =  -log Ka

                                         pKa  =  -log 1.37 × 10⁻⁴

                                         pKa  =  3.863

Putting value of pKa and pH in eq.1,

                                         4.29  =  3.863 + log [lactate] / [lactic acid]

Or,

                   log [lactate] / [lactic acid]  =  4.29 - 3.863

                   log [lactate] / [lactic acid]  =  0.427

Taking Anti log,

                             [lactate] / [lactic acid]  =  2.673

Result:

           2.673 M  lactate salt when mixed with 1 M Lactic acid produces a buffer of pH = 4.29.

6 0
3 years ago
The Lucas test has _______ results based on the type of alcohol present because the reaction involves a _________, which is ____
Olin [163]

Answer:

1) positive

2) carbocation

3) most stable

4) faster

Explanation:

A common test for the presence of alcohols can be achieved using the Lucas reagent. Lucas reagent is a mixture of concentrated hydrochloric acid and zinc chloride.

The reaction of Lucas reagent reacts with alcohols leading to the formation of an alkyl chloride. Since the reaction proceeds via a carbocation mechanism, tertiary alcohols give an immediate reaction. Once a tertiary alcohol is mixed with Lucas reagent, the solution turns cloudy almost immediately indicating an instant positive reaction.

Secondary alcohols may turn cloudy within five minutes of mixing the solutions. Primary alcohols do not significantly react with Lucas reagent obviously because they do not form stable carbocations.

Therefore we can use the Lucas reagent to distinguish between primary, secondary and tertiary alcohols.

5 0
3 years ago
A certain chemical reaction releases 31.0 kj/g of heat for each gram of reactant consumed. How can you calculate what mass of re
Aleksandr-060686 [28]

Answer:

See explanation.

Explanation:

Hello!

In this case, since we know the heat of reaction per gram of reactant and we should know the total energy of reaction, but it is not there, we are going to assume it is 1200 J as usual in these problems, so you can change it to whatever your given heat is.

In such a way, we set up the math as shown below:

m= 1200J*\frac{1kJ}{1000J}*\frac{1g}{31.0kJ}

Which results:

m=0.0387g

Best regards!

7 0
3 years ago
What is Titan? Why are scientists interested in it?
Pavlova-9 [17]
Titan is one of Saturn's moon and they are interested in it because it has an atmosphere like Earth.
5 0
3 years ago
Read 2 more answers
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