Answer:
We know that an antacid is a base that can neutralize the stomach acid when ingested. The student observed that a soluble antacid tablet reacted faster in relieving pain due to the excess acid secreted in the stomach. So, the problem that can be studied is the effect of temperature on the rate of neutralization of stomach acid by the antacid. The independent variable is the one the student is going to vary that is the temperature. The dependent variable is the rate of reaction or the time taken for an antacid tablet to neutralize the acid present in stomach. The controlled variable is the tablet taken, that is the student should use a specific antacid tablet to ensure that the rate of reaction or the time taken for the antacid tablet to neutralize the acid present in stomach is not affected by the chemical composition of tablet.
Explanation:
Hope u understood.
Answer:
There are seven (7).
Explanation:
Since 5 digits are not zero and they're before the zero, they're automatically sig figs.
Since there's a sig fig (#4) after the zero, zero and the # 4 are also sig figs.
Added together, they're are seven
Answer:
At pH 8.59 the precipitation of acid will form.
Explanation:
The pH below which the drug will begin to precipitate can be calculated using the relation
pH =
where S = total saturation solubility of the drug
S° = solubility of the undissociated species
substituting the respective values in equation, we get:
pH = 8.59
Answer:
2.5l
Explanation:
They higher the temprature the higher the volume