What does different concentrations of acids do to shells?
The ocean water is mildly alkaline (pH of 8.2) and contains chemicals that are dangerous/crucial for the survival of it’s inhabitants. For an example, there is CO2 in the air from human activity that then reacts to sea water and creates carbonic acid (H2CO3). The H2CO3 then dissociates into a hydrogen proton and a bicarbonate ion (HCO3-). When carbonate ions combine with a hydrogen ion the concentration of dissolved carbonate diminishes.
The guiding question that is used for our research is What does the different concentrations of acid do to the seashell. The hypothesis is, that the changes of the concentrations of the acid will cause the shells to decrease …show more content…
Step two, label each cup with either a 1, 2, or 3. Step three, measure 120 ML of water a pour it into each cup. Step four pour the different measurements of acid (vinegar) each cup ( one measurement in each cup either 1 tsp, ½ tsp, or ¼ tsp). Step five, weight the mass each of the three shells by grams. Step six, write down the weight of each each shell (label each weight with which shell it is and what cup number that it is being put into). Step seven, put each shell in either cup 1-3. Step eight, get strand wrap and 3 rubber bands to seal cover the cups. Step nine, tear 3 strands of the strand wrap and but each strand of strand wrap on the top of each cup (make sure each cup is covered tightly and not loosely). Step ten, place a rubber band over each cup (wrap around the cup as many times as needed but DON’T let the cup crush). Step eleven, place the cups (cover and sealed with the rubber bands) to the side and leave the cups there for a week. Step twelve, make a data table that has four columns to the right and three going down. Step thirteen, label the first column going down 3-1 (number 3 should be placed in the second box in the first column and number 1 should be at the bottom of the column). Step fourteen, in the first column going from left to right label the first box Cups , then the next Concentrations of Acid , going on to the next (third) box
The ocean water is mildly alkaline (pH of 8.2) and contains chemicals that are dangerous/crucial for the survival of it’s inhabitants. For an example, there is CO2 in the air from human activity that then reacts to sea water and creates carbonic acid (H2CO3). The H2CO3 then dissociates into a hydrogen proton and a bicarbonate ion (HCO3-). When carbonate ions combine with a hydrogen ion the concentration of dissolved carbonate diminishes.
The guiding question that is used for our research is What does the different concentrations of acid do to the seashell. The hypothesis is, that the changes of the concentrations of the acid will cause the shells to decrease …show more content…
Step two, label each cup with either a 1, 2, or 3. Step three, measure 120 ML of water a pour it into each cup. Step four pour the different measurements of acid (vinegar) each cup ( one measurement in each cup either 1 tsp, ½ tsp, or ¼ tsp). Step five, weight the mass each of the three shells by grams. Step six, write down the weight of each each shell (label each weight with which shell it is and what cup number that it is being put into). Step seven, put each shell in either cup 1-3. Step eight, get strand wrap and 3 rubber bands to seal cover the cups. Step nine, tear 3 strands of the strand wrap and but each strand of strand wrap on the top of each cup (make sure each cup is covered tightly and not loosely). Step ten, place a rubber band over each cup (wrap around the cup as many times as needed but DON’T let the cup crush). Step eleven, place the cups (cover and sealed with the rubber bands) to the side and leave the cups there for a week. Step twelve, make a data table that has four columns to the right and three going down. Step thirteen, label the first column going down 3-1 (number 3 should be placed in the second box in the first column and number 1 should be at the bottom of the column). Step fourteen, in the first column going from left to right label the first box Cups , then the next Concentrations of Acid , going on to the next (third) box