[Ahsome]

I have a high school chemistry question. Can some one answer please. Below is the question. There two small tables that are part of the questions which have been attached here . Many Thanks in advance.

A metal carbonate was reacted with sulphuric acid and three products were obtained.
The metal carbonate, (reactant), was subjected to analysis by a mass spectogram and the result is shown below.
The three products are labelled Product A, Product B and Product C.
Product A was also subjected to analysis by a mass spectogram and the result is shown below.
Product B, when bubbled through limewater, turned the lime water milky.

a) from the information given above, identify : The metal carbonate reactant and Products A, B and C
b) give a balanced equation for the reaction as outlined above.

[thetada]

You have to have a go at answering the question yourself, it's a forum policy. Suggest an answer with a reason and then we can help.

[Ahsome]

No clue to start with. I don't need a worked solution but a suggestion on how to start and what are the steps involved would be appreciated. Thanks.

[Borek]

Product B, when bubbled through limewater, turned the lime water milky.

Looking for clues? Google for "bubbling limewater".

[thetada]

The graphs are basically telling you the relative atomic masses of the constituent elements, so you can match those to the values in the periodic table to identify what the elements are.

Next, let the %age values be mass values, ie, if one element is 41% by mass, assume that you have 100g of the compound, and hence that 41% of the compound has a mass of 41g. Use these values to determine the empirical formula. (Divide the %age values by the corresponding relative mass. The simplified ratio of the resulting numbers gives the ratio of atoms of each element in the compound.)

[Ahsome]

So, I have 10g of Carbon. Does that mean I have 10/12 Carbon atoms, in relation with the others?

10/12 Carbon, 40/16 Oxygen, 49.5/58.7 Nickel?

[thetada]

Exactly

[billnotgatez]

b) give a balanced equation for the reaction as outlined above

Is this answered?