4. List the three fluid compartments and the percentage of total body water in each. a. Intracellular 62% b. Interstitial 30% c Plasma 8% 5. Give an example of each of the following solutes: a. Ions/electrolyte: Sodium ion b. Colloids: Proteins c. Nonelectrolytes: Glucose 6. List the major extracellular and intracellular cations and anions a. Extracellular cations: Sodium anions: Chloride b. Intracellular cations:
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the protons are not equal to the electrons ion the protons are not equal to the neutrons isotope atomic mass = mass of protons + neutrons changing the number of neutrons does not influece the mass or electrons atom behaviour is because of electrons hydrogen almost always loses its electron‚ leaving it a hydrogen ion taking away a negative charge creates a cation adding a negative charge creates an anion electronegativity is the ability to steal electrons electronegativity is influenced
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ppt. [h] Insoluble in excess aq. NaOH. Fe2+ + 2OH- Fe(OH)2 (dark green ppt) Reddish-Brown ppt. [k] Insoluble in excess aq. NaOH. Fe3+ + 3OH- Fe(OH)3 (red brown ppt) iron (II) iron(III) NOTE: The observations for both lead(II) and aluminium ions are similar. To distinguish them‚ add aqueous potassium iodide KI to both solutions.
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Pre-Lab Work Sheet Which type of compound usually has higher melting points: ionic compounds or covalent compounds? What is the reason for this difference in melting points? (3 points) Ionic compounds have higher melting and boiling points than covalent compounds. The electrostatic attraction in an ionic bond is very strong hence a lot of heat energy is required to break it down‚ ionic bonds have high melting and boiling points. In covalent bonds‚ the intermolecular forces are very weak and
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energy. E) The total energy of a system does not remain constant. 6) 7) A covalent bond is best described as A) the sharing of electrons between atoms. B) the transfer of electrons. C) a bond between two polyatomic ions. D) a bond between a metal and a polyatomic ion. E) a bond between a metal and a nonmetal. 7) 8) What answer should be reported‚ with the correct number of significant figures‚ for the following calculation? (249.362 + 41) / 63.498
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| | |2 |9/2 Lec |Ch. 2 Atoms‚ Molecules‚ & Ions | |HM1 | | |9/2 Lab |Exp. 2 Paper Chromatography |Exp. 1 Advanced study assignment (ASA1) |Quiz 1‚ ASA2 | | |9/4 Lec |Ch. 2 Atoms‚ Molecules‚ & Ions |Homework 2 (HM2) |
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charcoal is too large to pass any of the membranes. 3. Pressure changed the speed of filtration but pressure does not affect the size of the solutes nor the pore size of the membrane. Activity 5 1. The SP pump ejects 3 sodium ions per every 2 potassium ions coming in. 9:6 represents the ration of the SP pump 2. Predicted that no sodium would be transported because the coupled
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became clear after 3 drops of HCl C. Cobalt (III) chloride equilibrium Color before: fruit punch red Color after: plum red/ condensation was blue Color upon cooling: fruit punch red V. Postlab Questions 1. Fe in the presence of hydroxide ions forms an insoluble gelatinous precipitate. Did
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Ionic Reactions Results B - Do your results agree with your expectations from the solubility rules/table? Our results seemed to largely agree with the established solubility rules/table; however‚ a few reactions with the commonality of being mixed with Co(NO3)2 (cobalt nitrate) [reference Row A‚ Columns 2‚ 3‚ and 4] seemed to have such a pale pink tone that it was difficult to decide whether that could have been a precipitate or the lighting in the area where the experiment took place. Ultimately
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Reactivity of Halide Ions Purpose: There are four halide salts used in this experiment that are found in the human body. Sodium fluoride is poisonous‚ but has been traced to be beneficial to humans in the prevention of tooth decay. Sodium chloride is added to many of our foods to increase flavor. Sodium chloride is important for many life processes‚ but too much intake is linked to high blood pressure. Sodium bromide is distributed throughout body tissues. Sodium iodine controls cell growth. The
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