deciding the position of unknown element x in the

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To determine the position of Element X in the reactivity series


The reactivity series may be the arrangement of elements in accordance to their reactivity. The most reactive element is put at the top and the least reactive at the bottom. The elements at the pinnacle can shift elements listed below them off their compounds

Inside the experiment, element X will either have elements even more reactive or perhaps less reactive or both equally. Based on this kind of, the position of the unknown factor can be found out.

Let’s assume that the element given can be not potassium, then potassium will displace X from its compound; as a result we can say that potassium is more reactive than X; and X is definitely below potassium in the reactivity series. Let’s assume that copper is much less reactive than X; Back button will displace copper from its compound. Therefore X is definitely higher than birdwatcher in the reactivity series than copper.

Inside the experiment, the enthalpy (temperature) change will likely show just how reactive factor X is.

For example if X is right above Zinc in the reactivity series i. electronic. element By is aluminum, then the temperature difference between reacting Approach with CuSO4 will be more than reacting Approach with ZnSO4 or FeSO4. This is because since the distance (number of elements in between between) the factors increases there may be more difference in the reactivity level of the selected elements.

When? H (? Heat) can be +ve, the reaction taking place is exothermic and when? H can be -ve, the reaction will be endothermic. When the number of element involving the elements re-acting is more, in that case? H in the reaction may also be more. Such as if we consider Zinc while element Times, then Zinc is more reactive than Business lead; but Zinc is even more reactive than Copper. This is because Copper is usually further below Lead in the reactivity series. Thus a chemical reaction between Zinc and a Copper compound will be more reactive (& may have a higher? H) than a response between Zinc and Business lead.

When? Electronic (? Energy) is +ve, the reaction happening is endothermic and when? Elizabeth is -ve, the reaction will probably be exothermic. The real reason for the nature of? H stated previously is the? Elizabeth (? Energy) of the response. Again; even more the number of factors between the reactants (according for the Reactivity Series) the lower the importance of? E i actually. e. even more exothermic the reaction is. This is due to the type of bonds present in numerous compounds. Taking the pervious model, a reaction between Zinc & a Water piping compound can give a lower? Elizabeth than a response between Zinc & a Lead chemical substance. Thus this sort of reactions are usually more apparent.



The Metal Chemical substance used to behave with Element X

The metal chemical substance used to behave with Aspect X was varied since this variation of the material will help us determine the positioning of aspect X.


Whether a reaction takes place or perhaps not

The moment different steel compounds are used, it is not important that a response takes place every time. The incident of a reaction depends on the metal present in the compound applied.

Energy Alter (? E)

? E depend upon which compound employed. In different compounds there are several types of bonds present and also every bond includes a different energy level.

Enthalpy Alter (? H)

? H depends upon? E. If? E is usually -ve, then your reaction is exothermic; in the event? E can be +ve, then this reaction will be endothermic.


Volume of the Metal Substance taken

The quantity of the material compound taken must be held constant because varying quantities can affect the final temperature.

Size of Element Times strip

The size of the deprive of Component X should also be stored constant because varying plans can again affect the last temperature.


1 Remove of Element X

7 Test pipes

5ml of CuSO4

5ml of FeSO4

5ml of MgSO4

5ml of PbNO3

5ml of KSO4

5ml of AgNO3

5ml of ZnSO4


1 . Take a strip of Element Times and is not sufficient into 7 equal items

2 . Dump 5ml of CuSO4 in a test tube

3. Place a thermometer into one evaluation CuSO4 and measure the temperatures

4. At this point put a bit of Element By into the check tube and measure? L

5. Do it again Steps a few & 5 for FeSO4; MgSO4; PbNO3; KSO4; AgNO3 & ZnSO4





Initial Temp (ïC)

Last Temperature (ïC)

? H (ïC)




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The strip of element Times given to us was shiny, this indicates that element X is not so reactive. Reactive metals such as aluminium usually form a metal o2 layer on top of them as a result losing their very own luster. When ever Element By was devote sulphate of potassium (which is a clear solution), the answer remained crystal clear, and the piece of Element Times also remained shiny; thus indicating no reaction. Component X behaved similarly pertaining to sulphates of Magnesium, Zinc & Straightener.

A piece of Factor X into PbNO3, after having a lot of time, the solution slowly became cloudy (white precipitate), implying a reaction. Through this reaction the? H was +1ïC.

In CuSO4, the piece of Element X was deposited with black medicine all over. As well the solution becomes lighter green as compared to the pure CuSO4(aq). It was an extremely slow process.

In AgNO3, the solution converted cloudy (black) immediately after hanging the item of Element By.

If we observe the table below carefully, we all notice that Aspect X did not react with K, Mg, Zn and Fe. But it reacted with Pb, Cu & Aktiengesellschaft. This means that aspect X is usually Sn; since the reactivity series goes as follows: K, Em, Ca, Magnesium, Al, Zn, Fe, Sn, Pb, Cu, Ag, Au.


Substance Equation

Strength Equation

? At the








?nternet site stated in my hypothesis, which the further separate the elements are (in the Reactivity Series) the low the? E is. This means that the reactions are more evident (vigorous) and also more warmth is produced in such reactions.


Out of this experiment, I conclude the Element Back button given to me personally is under Iron and above Lead in the reactivity series i actually. e. the element can be Tin. I also determine that the additional apart the elements are (in the Reactivity Series) the higher the? H and lower the? E. My spouse and i also consider that this sort of reactions will be more reactive (apparent) as compared to these between aspect with a decrease number of components between them.


In this try things out, if the mass of element X would have been assessed and then used for reactions the reactions would have been more accurate and dependable.


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