When Chemicals React! Mr. Bell’s honors level chemistry class conducted an experiment during their lab demonstrations‚ this consisted of elements such as phosphorus and calcium chloride in their experiment. This along with another hydrogen based sunstance produced‚ what looked like a pinkish-looking substance inside of their flasks that were at their lab stations. Sophmore Kelly Caudel said‚ “ I actualley enjoy doing the experiments in this class‚ because it gives us a chance to get away from
Free Chemistry
For an enzyme to act‚ there are a few factors that affect them which are: substrate concentration‚ temperature‚ salt concentration‚ pH‚ and inhibitors‚ activators and cofactors being present (Kumar‚ 2015) Finding the optimal temperature for amylase Bacteria and Fungi with the presence of starch is the purpose of this experiment. Optimal conditions are known as conditions in which organism are able to thrive in‚ where it is able to function at its best. If an organism was to surpass its optimal temperature
Premium Enzyme Metabolism Chemical reaction
Results The objectives of this experiment were to investigate diffusion of molecules across a membrane and the factors that affect the rate of diffusion. The hemolysis time of sheep erythrocytes was measured for each of eight different nonelectrolyte solutions by eleven groups in BI 108 Section D2. These eight nonelectrolytes were urea‚ thiourea‚ methanol‚ ethanol‚ propanol‚ ethylene glycol‚ diethylene glycol‚ and triethylene glycol‚ and the mean hemolysis times can be seen below in Figure 1. The
Premium Diffusion Chemistry Osmosis
the percent yield by dividing the expected yield‚ the amount of product that should be produced based on your stoichiometric calculations‚ by the actual yield‚ the amount of product that is experimentally obtained from a chemical reaction. In this lab‚ I have determined the reaction for mixing two reactants together; I measured out 0.005 moles of each reactant‚ lead (II) nitrate and potassium chromate. I dissolved‚ mixed‚ and made them react to make products; I compared the mass of the two reactants
Premium Stoichiometry Chemical reaction
in the future (Weirich‚ 2005). This discovery gave way to understanding these species abilities and the positive effects it has on humans and other existing mammals. Acidophillic extremophiles exist as two types of broad categories: Archaea and Bacteria. Lactobacillus
Premium Bacteria Lactobacillus
Engine Lab Report Diesel Engine Load/N |Fuel Time/s |dH/mmH2O |Speed/r.p.m |Temp/℃ |Air consumption/kg/H |Fuel consumption/kg/H |Air-fuel ratio |Power/kw |Efficiency/ ％ | |40 |121.6 |17.5 |3018 |26.6 |130.16 |2.47 |52.7 |4.5 |0.019 | |80 |94.72 |17.5 |3009 |26.7 |130.14 |3.17 |41.05 |8.97 |0.059 | |125 |72.76 |17 |3009 |26.8 |128.25 |4.12 |31.13 |14.02 |0.111 | |171 |56.95 |17 |3000 |26.9 |128.23 |5.72 |24.33 |19.12 |0.161 | |212 |46.06 |16.5 |3006 |27.1 |126.28 |6.51 |19.40 |23.76 |0.202 | |232
Premium Internal combustion engine Fuel injection Diesel engine
Name: Danielle Title: Unknown Lab Report Introduction: There are many reasons for identifying an unknown bacterium. The reasons range from medical purposes‚ such as determining if the unknown could cause ailments in living things or knowing what microorganisms are needed to make antibiotics. The experiment was done by applying methods in order to identify an unknown bacterium. An unknown bacterium was handed out by Dr. Honer. The appropriate tests were prepared and applied. The
Premium Bacteria Escherichia coli Microbiology
for samples treated with nicotine from a basal heart rate of 147.04 bpm to a drug treated heart rate of 66.67 bpm which is contradictory to the literature and contradictory to experimental values when n=12. Nicotine is a known stimulant increasing blood pressure‚ heart rate‚ and myocardial contractility by activating the release of catecholamine by binding to nicotinic acetylcholine receptors on the adrenal medulla and postganglionic sympathetic nervous system [1]. Several possibilities may help explain
Premium Acetylcholine
zmosis The IB Lab Report Measuring osmosis 1. Introduction My experiment is about osmosis on a potato and if or the quantity of salt affects osmosis. I would do the experiment with 5 potatoes cut into squares all the potatoes weight the same so the weight can`t be a variable the I put the potatoes on 5 different plastic cups with different amounts of salt and then I weight them again to see if the quantity of salt affected the osmosis of potatoes 1a. Research question ¿Does the quantity
Premium Osmosis Chemistry Concentration
Observing Stereotypes Through Personal Experiences - Daniel Paulsen After discussing this report with my parents‚ they remembered a time last year when I came home and complained about a group at school. I recall last year around June‚ when I passed a group of friends. All standing in a circle gossiping by the gym. There were five or six - three girls‚ and I think two or three guys. Easily‚ I could tell that two of the guys were in a relationship with two girls because they were holding hands.
Premium High school Teacher Education