Results were in comparison to the lab group on Wednesday. Though their group tested different salt concentration levels: (0.0M NaCl‚0.15M NaCl‚0.6M NaCl‚1.2M NaC ‚4.8M NaCl). Their rationale hypothesis “An increase of sodium chloride (NaCl) will decrease the proteolytic activity of trypsin based on the effect salt concentration has on protein denaturation” was proven throughout their experiment to be accepted (Theo Balog‚ Samantha Lin‚ Derek Margulies‚ Kayla McCulloch‚ Group
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To investigate the results of the different amounts of sodium bicarbonate (2g‚4‚8g)‚when put in the baking process to produce cupcakes‚obtained by the change of height of a cupcake measured by a ruler‚when baked at 180 degrees celsius for 20 minutes when measured with a ruler. Research question: What will be the result of adding different amounts sodium bicarbonate (2g‚4g‚8g) in a standard (vanilla) cupcake ‚when they are baked at 180 degrees celsius over a period of 20 minutes using an oven thermometer
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There is no net movement of water or solutes in any one direction since the concentrations of both are equal on both sides of the membrane. Solutes and water still move in and out but they do so equally. Ringer’s Lactate solution‚ aka 0.9% sodium chloride (or KCl‚ CaCl2‚ etc) is isotonic to human tissue fluid. This solution is infused into the blood stream for a number of reasons: * Irrigation of wounds * Low blood volume (maintain blood pressure if blood is not available) * Low electrolyes (dehydration)
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required for an LPG run auto rickshaw‚ the availability of oxygen is moles for combustion of one mole of butane is a) Less than 5 b) Between 8.5 and 9.5 c) Between 9.5 and 10.5 d) More than 10.5 8. In a soap industry the chemist forgets to add sodium chloride during the manufacture of soap‚ The possible effect is a) Soap cannot be easily separated. b) Chemical composition of soap changes c)
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Name: Derell Ruan Form: 4B1 SBA: Chemistry Aim: To determine which gas‚ Ammonia or hydrogen chloride defuses faster. Hypothesis: Ammonia will defuse faster than hydrogen chloride. Materials Equipment: Chemicals: * 2 retort clamp and stand Ammonia * 1 ½ m glass tube * 2 250cm3 beakers * Cotton Wool * Stop clock * Meter
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INTRODUCTION The passage of water molecules through a selectively permeable membrane is a special case of diffusion known as osmosis. Osmosis results in the movement of water from an area of lower concentration of dissolved material to an area of higher concentration of dissolved material. For a demonstration of this principle‚ a purple onion cell is going to be bathed in different
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leaves are arranged alternately‚ are ovate in shape with crenulate margins and are 4–10 cm long.[6] The orange fruit is a hesperidium‚ a type of berry.[7] Salt‚ also known as table salt‚ or rock salt‚ is a mineral that is composed primarily of sodium chloride (NaCl)‚ a chemical compound belonging to the larger class of ionic salts. It is essential for animal life in small quantities‚ but is harmful to animals and plants in excess. Salt is one of the oldest‚ most ubiquitous food seasonings and salting
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Determination of Cations and Anions through Elimination and Confirmation Tests By: Symantha Resendiz Introduction A topic of great importance to all scientists is the identification of compounds‚ which is relevant in all aspects of their work in some way shape or form. Weather it may be determining what is causing sickness or what is polluting the air‚ it is very prevalent in the science world. In project 2‚ identification of cations and anions was preformed through a series of confirmation
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dizziness and fainted‚ his girlfriend called 911. His primary complaint is “thirst‚ abdominal pain and gurgling”. He also states he has “only peed once today”. He was seen in the ER and an IV was started‚ he received 1 liter of IV fluid (0.9% sodium chloride) over 1 hour and is currently receiving 125 ml/hr of IV fluid through a left antecubital fossa IV site. Upon exam‚ it is noted that: His vital signs are: BP 90/54‚ P = 120‚ RR = 20‚ T = 100.8F. His mucosa is noted to be dry. His skin is
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diethyl ammonium chloride and aqueous potassium hydroxide contains which of the following species? A. KCl(s) B. 2 OH-1 C. (CH3CH2)2NH2 (aq) D. H3O+1 E. (CH3CH2)2NH2+1 (aq) 3. In the chemical reaction 5H2O2 + 2MnO4- + 6H+ ( 2Mn2+ + 8H2O + 5O2‚ the oxidizing agent is A. H2O2. B. MnO4-1. C. H+. D. Mn2+. E. O2. 4. It takes 32.0 seconds for ammonia gas to effuse down a capillary tube. How long will it take for hydrogen chloride
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