Tums is a popular remedy for acid indigestion. a typical tums tablet contains calcium carbonate plus some inert substances. when ingested, it reacts with the gastric juice (hydrochloric acid) in the stomach to give off carbon dioxide gas. when a 1.328-g tablet reacted with 40.00 ml of hydrochloric acid (density =1.140 g/ml), carbon dioxide gas was given off and the resulting solution weighed 46.699 g. calculate the number of liters of carbon dioxide gas released if its density is 1.81 g/l.

0.1265 L

Explanation:

Given:

mass of the tablet = 1.328 g

Volume of HCl = 40.00 mL

Density of HCl = 1.140 g/mL

Weight of the final solution = 46.699 g

Density of carbon-dioxide = 1.81 g/L

Now, the mass of HCl in the solution = Density × volume = 1.140 × 40.00 = 45.6 g

Now, the total weight of tablet and HCl = 45.6 + 1.328 = 46.928 g

also, total weight of the the mix = weight of tablet + weight of the HCl + weight of the carbon-dioxide

the final weight id after the release of carbon-dioxide from the total weight

thus,

Weight of the carbon-dioxide =   total weight - Final weight = 46.928 - 46.699 = 0.229 g

hence, the number of liters carbon-dioxide released = volume of carbon-dioxide released = mass of carbon-dioxide released / density = 0.299 / 1.81 = 0.1265 L

< > according to newton's third law of motion, forces always act in equal but opposite pairs. another way of saying this is for every action, there is an equal but opposite reaction.< >

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