How much co2 gas is produced by four antacid tablets?

You can refer to the attached graph which shows the amount of carbon produced from the antacid tablets.

The x-axis represents the number of tablets while the y-axis represents the amount of carbon dioxide produced.

Following the graph, we can find that:
For four tablets of antacid, nearly 60 ml of carbon dioxide is produced.

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Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf