Hydrochlorimetry Lab

Of the 65 rocks only 29 did NOT neutralize acid which is really good so the creek should not be acidic. We then took tests to tell if the water had eutrophication problems. Of all our phosphate tests we took it averaged out to 0.1ppm (parts per million) which is really outstanding. We then took nitrate tests and they averaged out 0.9ppm which is good. The last tests we took were dissolved oxygen tests and they came out 9.8ppm which shows how much oxygen is in the water and that is very great.

Daptomycin caused a reduction in cell viability of 3 log 10 CFU/mL after 6 h in PBS while tetracycline caused only bacteriostasis. TBHQ had no effect on bacterial viability for the first 120 min of the experiment, but killing was observed thereafter. The bacterial killing was initiated after the conversion of TBHQ into TBBQ and the extent of kill was increased with increasing TBBQ concentration, ultimately leading to a 4 log 10 drop in cell number after 6h. TBBQ was rapidly and extensively bactericidal, causing 5 log10 drop in cell number within 3 h. Kim et al., [212] determined the bactericidal effect of DMBQ by the time-kill curve experiment. The effect of DMBQ against S. typhimurium cells was bacteriostatic for the first 5 h of incubation after addition of the compound.

However, during his workout he was slightly dehydrated since his urine turned to dark yellow. The urine color and specific gravity are matched in terms of normal values based on the data results. Because the normal specific gravity of urine ranges from 1.000-1.030 according to medlineplus.gov. 2. Based on the urine color and specific gravity, what might Tracey conclude about the hydration status of Max 's body at the three different times?

1 “substrate” and another “ enzyme.” Instead of using the distilled water, this time you are going to use different pH buffer in the enzyme test tube. In the substrate tube, add 7 mL of distilled water, 0.3 mL of hydrogen peroxide, and 0.2 mL of guaiacol for a total volume of 7.5 mL. For the enzyme tube, instead of distilled water add the pH solution (3) and 1.5 mL of peroxidase which equals a total volume of 7.5 mL. Use the dH2O syringe for our pH solution. To clean the syringe, flush it by drawing 6 mL of distilled water.

To prevent this from happening, the hot plate should not exceed 130˚C, so no matter what ketone was isolated, it would not evaporated off. At this point I found that if the hot plate was at 147˚C the solution boiled more vigorously, meaning that my ketone hade a boiling point of 147˚C, which was close to the known boiling point value for 3-heptanone, 146˚C. The hot plate was turned down after this was noticed. After the solution was heat, approximately for five minutes, the mass was found for the bottom layer, which was 2.27g, and the percent yield was calculated. The percent yield was determined by taking the mass of the final ketone and dividing it by the original mass of the alcohol.

Blood samples are taken after the drink is consumed. In a normal scenario the GH levels should drop after drinking glucose. But if the GH does not drop and remains the same, its an indication that the body is making too much GH. c. Imaging GH Deficiency In the case of GH deficiency, measurement of GH in the blood is not very helpful for the sake of diagnosis. However the most frequently used test is the Insulin tolerance test (ITT).

In this experiment, the amount of water lost in the 0.99 gram sample of hydrated salt was 0.35 grams, meaning that 35.4% of the salt’s mass was water. The unknown salt’s percent water is closest to that of Copper (II) Sulfate Pentahydrate, or CuSO4 ⋅ 5H2O. The percent error from the accepted percent water in CuSO4 ⋅ 5H2O is 1.67%, since the calculated value came out to be 0.6 less than the accepted value of 36.0%.This lab may have had some issues or sources of error, including the possibility of insufficient heating, meaning that some water may not have evaporated, that the scale was uncalibrated, or that the evaporating dish was still hot while being measured. This would have resulted in convection currents pushing up on the plate and making it seem lighter by lifting it up

At this point we had six tube with water and protein solutions, the “U” with unknown protein and water but tube 1 to 5 with a standard protein solution and water. The tube “B” had only water in it so it was acting as our blank, a blank in our experiment was used to calibrate the spectrophotometer machine, it was identical to other tubes only that it did not have the solute that we were

HAPZ administered at higher dose level has shown significant decrease in kidney weight when compared to cisplatin control group but the lower dose of HAPZ has no effect in this aspect. Serum urea In cisplatin administered group there was a remarkable significant increase (228.67%) in the serum urea level in comparison to the normal control group. The results indicated that the drug showed a dose dependent significant reduction in the serum urea level towards normal range. The higher dose of P. zeylanica reduced the concentration of urea by 68.2% when compared to cisplatin control group. Serum

On the off chance that this enzyme doesn't work, the microbes can't replicate or repair themselves and this executes them.Nalidixic acid is filtered out of the blood and pass into the urine by the kidneys. Large amounts of the prescription go into the urine, which implies nalidixic acid can be utilized to treat bacterial contaminations in the urinary tract. But as for my practical, we got clearing zone of S.aureus instead of E.coli. Since the inhibition supposed to go to E.coli but maybe due to some technical error like too high concentration of Nalidixic acid when plated on S.aureus compared to E.coli, that is why we got false positive