How Does Sodium Chloride Effect the Growth of Phaseolus Vulgaris?

2. To titrate a hydrochloric acid solution of “known” concentration with standardized 0.5M sodium hydroxide.

First I will set up the apparatus as show above. I will add 1.5 grams

Repeat each concentration of sodium chloride solution 5 times to achieve a more accurate average. This is important because it can help me to detect any anomalies in my data caused by mistakes or errors. Identifying these mistakes can help to strengthen my investigation and reduce the amount of anomalous results.

H. How would you prepare 10 mL of a 0.25M HCl solution if 1M HCl was available? How much

Keep adding five drops of HCl or the solution until a total of thirty drops have been added.

8. I added the 3 ml of soap to the beaker and stirred the solution 40-50 times with a fresh pipette.

C. Pour about one quarter of the first unknown packet into the first cup and add

For each of the 3 acceptable trials, enter the precise volume in milliliters of sodium thiosulfate solution used in

8. Repeat step 7 with H2SO4, except that you should use a 10 mL graduated cylinder of H2SO4 and adding 15 mL water.

7. In a procedure developed to determine the percent zinc in post 1982 pennies, 50 ml of an HCl solution was used to react (dissolve) all of the zinc in the penny. To ensure complete reaction, the solution contains twice as many moles of HCl that is actually needed. What concentration of HCl should be used?

3. A student wanted 20.000 g of a salt. Which balance should the student use in order to

9.Repeat the procedure with a new mass of baking soda. Before beginning, rinse the reaction vessel with water. Refill the graduated cylinder with water. Check water level in collection box so it has room for the water from the graduated cylinder.

Load the remaining protein mix into the column, and this will begin to bind within the column. Once the solution has settled, fill the column with NaCl a total of four times; as the wash is flowing through, collect and label the protein solution in fractions, and save for the

This table shows that for 0% sodium chloride concentration, the average rate was 0.105 g/min and the value that was furthest away was 0.031 g/min either side of the average. For 1% the average was 0.055 g/min and the value furthest away was 0.075 g/min either side of the average. For 2%, the average rate was 0.028 g/min and the value furthest away was 0.016 either side of the average. For the 5% concentration, the average rate was -0.015 g/min and the value furthest away was 0.013 g/min, and for 10% the average rate was -0.058 g/min and the value furthest away was 0.037 g/min either side of the

They curry and cinnamon oil ended up producing more bacteria than the controlled, which had neither curry nor cinnamon oil. My hypothesis of, if curry and cinnamon oil are placed on a petri dish filled with agar then the cinnamon and curry oil would stop any growth of bacteria because curry and cinnamon are known to stop bacterial growth. Was not supported because the curry and cinnamon ultimately increased the growth of the bacteria while the controlled had barely and affect. The curry oil produced the most bacteria, even though studies have shown that curry kills more bacteria than cinnamon. It is very unlikely that this experiment will truly change the world, but more consideration could be taken. Such as, maybe just regular curry and cinnamon