fermentation‚ we repeated that procedure except instead of putting each fermentation tube into a certain temperature of water‚ we used the same temperature of water but each tube had a different amount of bleach in it. We put 0 drops of bleach in the first one and increased by 2 drops of bleach every tube‚ ending up with 10 drops in the sixth fermentation tube. We monitored the amount of
Free Carbon dioxide Oxygen Water
Knowing how to wash clothes —without ruining them — is a basic life skill. Before you load up the washing machine‚ you have to do some prep work such as separating items by color and texture‚ choosing the right washing cycle‚ and knowing how much detergent to add. All this calls for just a little practice‚ but you’ll get the hang of it in no time. Separate and divide for laundry success Not all fabrics are made the same‚ so you need to create piles of items based on color and fabric type:
Premium Laundry Clothing
bactericidal agents‚ bleach‚ hydrogen peroxide‚ and isopropyl alcohol‚ were tested. This was done by creating aqueous solutions of staphylococcus epidermidis bacteria and a chemical agent. The solutions were then incubated on an agar petri dish for 24 hours. The quantity of staphylococcus epidermidis bacteria colonies that were grown were used as an indicator of how effective each agent was in killing the bacteria. Each bactericidal agent has its own mechanism for killing bacteria. Both bleach and hydrogen
Premium Bacteria Chlorine Oxygen
Division of City Schools Manila‚ Philippines Victorino Mapa High School Amount of Hydrogen Peroxide Concentration to be applied in the Materials used in In-Office Bleaching Technique and Walking Bleach Technique Harvey D. Abdosan IV-OBB (Researcher) Ms. Luzviminda A. Dinglasan (Research Adviser) Introduction One of the problems of Filipino today is the yellowish teeth they have. Some of them are afraid to smile because they are ashamed of their teeth. Now is there any process that can
Premium Hydrogen peroxide Sodium perborate
contained. C. Independent Variables: antibacterial soap‚ household bleach‚ household disinfectant‚ penicillin‚ amoxicillin‚ erythromycin D. Dependent Variables: Hemophilus influenzae‚ Straphylococcus aureus‚ Streptococcus E. Control Variable: Sterile Filter Paper III. Hypothesis: If the most effective solution for pathogenic bacteria is household bleach‚ then the descending order from best to least are household bleach‚ Penicillin‚ Amoxicillin‚ Household Disinfectant‚ Anti-Bacterial Soap
Premium Bacteria Microbiology
skinned and the only way to accomplish this is through the use of the skin bleach. They did not come to this conclusion by themselves. While watching the documentary Skin Bleaching Addiction‚ I noticed that the Nigerian men also showed a preference for the lighter skin women. The men in the documentary made comments about how they prefer a woman with lighter skin due to preference but they did not approve of the women that bleach their skin since these women “look like ghost or sickly”. Among African
Premium Woman Gender Black people
by adding drops of vinegar‚ bleach and ammonia to the controlled water. We found that the vinegar was the most effective and the quickest. The ending results were very interesting when being compared to our hypothesis and we learned that some chemicals can react faster than others and each contains a different level of concentration. HYPOTHESIS: For brine shrimp exposed to increasing concentrations of three chemicals‚ ammonia will have the highest LC-50 (toxicity)‚ bleach will have the intermediate
Premium Petri dish Chemistry Concentration
Pos t-Lab Data Summary Note : some questions will display a variable like "nCount" or "SyInput" instead of an actual number in the data summary. Q# Question Text 5) Data Entry - No Scoring Enter the precise mass in GRAMS of the potassium iodate used to prepare your primary standard solution. Your mass precision should be reported to a thousandth of a gram‚ i.e. 0.302. (Use 3 significant figures.) Your Answer: 0.536 No Points Possible 6) Scoring Scheme: 3-3-2-1 If one had weighed out precisely
Premium Titration Iodine Sodium
General Chemistry Laboratory 151 Chemiluminescence Introduction: The objective of tis experiment was to carry out systematic series of experiments in order to determine which chemicals and which ratios of chemicals produce the brightest light. Also‚ this experiment will determine which chemical produces the longest light. Chemiluminescence is the emission of light (luminescence)‚ as the result of a chemical reaction. There may also be limited emission of heat. This occurs because the
Premium Chlorine Sodium Chemistry
time. Because the trials were done systematically from one to the next‚ only one element of each trial was changed at a time‚making it easy to single out the defining factors. There were many chemicals used during this experiment including Luminol‚ bleach‚ DMSO‚ NaOH‚ HCl‚ and H2O2. On the second day of trials‚ the Luminol was chilled to test the effects this would have on the glow we obtained through chemical reactions. Results of Day 1: Table 1: Trial | Luminol (D) |
Premium Chemical reaction Chemistry Hydrogen peroxide