1. List the steps you would take if you were to break a beaker with a pH 9 solution.
First, once a spill occurs, ensure everyone (especially the lab instructor/advisor) around the area or in the lab knows about the occurrence. Second, it would be best to make sure that you have not been contaminated with the chemical, meaning that you should take care of yourself by washing the affected areas. Third, once your hands are dry, you should then make an effort to neutralize the solution of pH 9 as close as possible to pH 7 and remove all pieces of glassware by sweeping them using a broom/dustpan and then discarded in the broken glassware container. Once you check if the solution has been neutralized via litmus paper or Labquest, use enough paper towels or a rag big enough to dry up the spill as well as making sure the chemical does not seep through the towel.
2. A graduated cylinder, Erlenmeyer flask, and beaker were used to measure a 60-mL volume. Which of these devices seems to be the least accurate for measuring a 60-mL volume? How did you determine this during lab? State some reasons why this device might be least accurate compared to the …show more content…
The system consists of constant changes between water (H2O) and carbon dioxide (CO2) to form carbonic acid (H2CO3) and, if needed, it will break the weak acid and from bicarbonate (HCO3-) and very little hydrogen ions (H+). This equilibrium allows for the equation to vary back and forth maintaining a constant pH value within the species. For instance, when hydrogen is missing, more water and carbon dioxide will form carbonic acid and will therefore dissociate replacing the missing hydrogen ions and lowering the pH value. However, if there is an excess of hydrogen ions, these will combine with left over bicarbonate ions to form carbonic acid and eventually water and carbon dioxide until it is expelled from the lungs thus raising the pH
First, once a spill occurs, ensure everyone (especially the lab instructor/advisor) around the area or in the lab knows about the occurrence. Second, it would be best to make sure that you have not been contaminated with the chemical, meaning that you should take care of yourself by washing the affected areas. Third, once your hands are dry, you should then make an effort to neutralize the solution of pH 9 as close as possible to pH 7 and remove all pieces of glassware by sweeping them using a broom/dustpan and then discarded in the broken glassware container. Once you check if the solution has been neutralized via litmus paper or Labquest, use enough paper towels or a rag big enough to dry up the spill as well as making sure the chemical does not seep through the towel.
2. A graduated cylinder, Erlenmeyer flask, and beaker were used to measure a 60-mL volume. Which of these devices seems to be the least accurate for measuring a 60-mL volume? How did you determine this during lab? State some reasons why this device might be least accurate compared to the …show more content…
The system consists of constant changes between water (H2O) and carbon dioxide (CO2) to form carbonic acid (H2CO3) and, if needed, it will break the weak acid and from bicarbonate (HCO3-) and very little hydrogen ions (H+). This equilibrium allows for the equation to vary back and forth maintaining a constant pH value within the species. For instance, when hydrogen is missing, more water and carbon dioxide will form carbonic acid and will therefore dissociate replacing the missing hydrogen ions and lowering the pH value. However, if there is an excess of hydrogen ions, these will combine with left over bicarbonate ions to form carbonic acid and eventually water and carbon dioxide until it is expelled from the lungs thus raising the pH