25 mL of sodium iodate solution was added to each flask. Using 10 mL and 25 mL graduated cylinders‚ the following volumes of CaCl2 solution with a concentration of 22 g/L was added to the Erlenmeyer flasks. In flask 1‚ 5 mL of CaCl2 solution was added. In flask 2
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Effects of oligomycin‚ ouabain‚ p-Aminohippurate‚ sodium concentrations and potassium concentrations on active transport of the Malpighian tubules of Acheta domesticus Key Words: Malpighian tubules‚ Acheta domesticus‚ PAH‚ ouabain‚ oligomycin‚ Na+‚ K+ Silvia Kilic 100488712 BIOL 3040U CRN: 70041 Thursday‚ March 5th‚ 2015. Results The Malpighian tubules were incubated in the solutions for 15 minutes before being observed. The transport of CPR into the lumen was highest when there was no addition
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Abstract: The experiment was done to demonstrate the effect of ADH on the volume and concentration of urine in order to demonstrate the control of ADH over blood plasma osmolarity. Since non-invasive methods were preferred the volume and concentration of urine was used in place of drawing blood. The results that we our anticipating are that ADH levels in the group of subjects that ingested the 6 gm. Of NaCl would increase over time in response to the increased osmolarity of the blood from all
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was performed at Texas State University – San Marcos in the Chemistry lab. The concentrations used in the experiment were 0.5M of sodium hydroxide and 0.5M of sodium hypochlorite. The concentrations of the solutions found in the dumpster were calculated to be .806 M (both sodium hypochlorite and sodium thiosulfate as well). This was found by taking the 6.0% (by mass) sodium hypochlorite and multiplying it by 1 gram of solution‚ 1000 mL and 1 mol NaClO. This result was then divided by the result of 100g
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Calcium Chloride Grainy‚ White Sodium Bicarbonate White‚ flour texture Phenol Red Solution The color of Hawaiian punch‚ thin consistency‚ semi- transparent What happens when the substances are mixed together? Observations Calcium Chloride- Foams and heats up when mixed with the phenol red. Turned orange Sodium Bicarbonate- Turned orange‚ dissolved What individual interactions are responsible for the observed changes? Questions How come the sodium bicarbonate dissolved? Why did
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Department of Chemistry Chemistry Revision Unit II (Edexcel) (01) a) When lithium nitrate and sodium nitrate are heated separately‚ both decompose giving oxygen gas as one of the products. (i) Which of these two nitrates would decompose at the lower temperature? .........................................................………………………………………….................... (ii) Give the name of any other product formed when sodium nitrate is heated. .........................................................…………………………………………
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of industrially important sodium and calcium compounds including Portland cement; the biological significance of sodium‚ potassium‚ magnesium and calcium. • appreciate The s-block elements of the Periodic Table are those in which the last electron enters the outermost s-orbital. As the s-orbital can accommodate only two electrons‚ two groups (1 & 2) belong to the s-block of the Periodic Table. Group 1 of the Periodic Table consists of the elements: lithium‚ sodium‚ potassium‚ rubidium‚ caesium
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Materials: - pyrex test tube 13 x 100 mm - 100 ml beaker - wire gauze‚ ceramic centered -1.0 M copper (II) nitrate -1.5 M sodium hydroxide -1.5 M hydrochloric acid -12 cm piece of aluminum wire Procedure: In the beaker‚ heat 50 ml water make three marks from bottom to top on the test tube that are one cm apart Add 1.0 M copper (II) nitrate to the first mark Add 1.5 M sodium hydroxide to the second mark‚ and mix. Observe and feel the tube for any heat released. put test tube in the beaker‚ and turn
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presentation itself‚ it stated the impacts of road salts and deicers‚ the state uses on the roadways during the winter months. The most commonly used road salt is sodium chloride‚ which is also the most inexpensive and readily available. Recently after more than a half century of its widespread use in North America‚ the use of sodium chloride on the roadways have come under scrutiny by the environmental and scientific communities as well as regulators and legislators. The main residual effects
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is potassium (K+) t Most prevalent anion is phosphate (PO4-) Extracellular Fluid (ECF) t Fluid spaces between cells (interstitial fluid) and the plasma space t Interstitial l Most prevalent anion is chloride (Cl-) l Most prevalent cation is sodium (Na+) l Expands and contracts l 2/3 of ECF in interstitium t Intravascular (IV) l Within vascular space l Measured with blood tests l 1/3 of ECF Transcellular Fluid t Small but important fluid compartment t Approximately 1L t Includes fluid
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