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What is the initial cause of the dissociation of water molecules into hydrogen and hydroxide ions?
Elaney8
hydrolysis
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∙ 12y ago
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What volume of hydrogen chloride is produced by the reaction of 40 cm3 of chlorine with hydrogen?
Assuming that hydrogen, chlorine, and hydrogen chloride are all ideal gases and that the temperature and pressure are kept constant, the volume of gas depends only on the number of molecules of gas present. Also, at standard temperature and pressure, hydrogen and chlorine occur as diatomic molecules, and hydrogen chloride also occurs as diatomic molecules. The equation for the reaction is Cl2 + H2 -> 2 HCl. Therefore, the number of molecules of gas is the same before and after the reaction if both gases are present in the initial mixture that has a volume of 40 cm3. In that instance, the volume is the same before and after the reaction. However, the question seems to imply that hydrogen is supplied from an outside source. In that instance, there will be twice as many molecules after the reaction as before, so that the final volume will be 80 cm3.
Determine the number of moles of sodium hydroxide produced when 2 moles of sodium and 3 mol of water react to form soduim hydroxide and hydrogen gas?
Na +H2O -> NaOH +(1/2)H2 Every mole of Sodium requires one mole of water to make one mole of Sodium Hydroxide. So two moles of Sodium will produce two moles of Sodium Hydroxide. If there are three moles of water in the initial reaction then there will be one mole of water left over after reacting with two moles of Sodium. This reaction will produce half a mole of hydrogen gas.
During the Calvin cycle glyceraldehyde 3 phosphate is used to produce what?
Glyceraldehyde 3 phospate also known as (G3P) is one of the two molecules created in the last step of the initial energy investment stage of glycolysis. Thus, 2 G3P molecules create one glucose molecule, which it why it is created in the Calvin cycle of photosynthesis. One G3P molecule is created after 3 turns of the cycle, and after 3 CO2 molecules are fixed to the initial intermediate ribulose-biphosphate (RuBP).
What are the products of sodium hydroxide decomposition?
http://genchem.chem.wisc.edu/lab/CCA/MVHTM/NACO/NACONAOH.HTM This link is to a video showing the reaction. Following double-replacement conventions, the products formed will be the same as the initial reactants. This video shows that there is no visible reaction, thus these two reactants do not form a product.
How do you prepare 6N sodium hydroxide?
There are several methods for producing sodium hydroxide, or NaOH. The most common way of making NaOH at least as long ago as several hundred years if not more than 1000 was by mixing sodium carbonate, lime, and water. Lime is calcium hydroxide, which is made by heating a mixture of water and crushed limestone. The reaction of sodium carbonate and lime in water is: Na2(CO3) + Ca(OH)2 -----> CaCO3 + 2 NaOH The calcium carbonate formed is barely soluble in water, therefore the solution of NaOH is poured, filtered, or pumped away from the calcium carbonate precipitate and the water is allowed to evaporate away. A solution of NaOH can be easily made by allowing sodium metal to react with water. However, DO NOT PERFORM THIS REACTION WITHOUT A PROFESSOR'S GUIDANCE! The reaction produces hydrogen gas and a lot of heat; enough to ignite the hydrogen and air mixture, which will cause an explosion. Today, most NaOH is made using DC electricity and seawater. The anode is immersed in, or fed filtered seawater, and it is surrounded by a semipermeable membrane through which chlorine gas cannot pass and enter the solution. At the surface of the anode, chloride ions are oxidized to chlorine gas which is captured. Of course the cathode must be in electrical contact with the anode and the ionic balance must be maintained or nothing will happen. It's impossible to remove chloride anions without either replacing them with another anion or removing an equal number of cations. When making sodium hydroxide, water is reduced at the cathode to hydrogen gas and hydroxide anions, which replace the lost chloride ions and keep the reaction going. Thus, what is left in the seawater are the sodium and hydroxide ions, plus small concentrations of other ions. Solid NaOH is made by removing the water, probably by vacuum distillation. More pure NaOH can be made by recrystallizing the initial NaOH, or ion-exchange resins may be used to remove ions other than Na+ and OH-. There may be other methods for purifying the initial NaOH. The reason the chlorine gas must be removed is because a solution of chlorine gas in sodium hydroxide forms chlorine bleach, like Clorox®.
What volume of hydrogen chloride is produced by the reaction of 40 cm3 of chlorine with hydrogen?
Assuming that hydrogen, chlorine, and hydrogen chloride are all ideal gases and that the temperature and pressure are kept constant, the volume of gas depends only on the number of molecules of gas present. Also, at standard temperature and pressure, hydrogen and chlorine occur as diatomic molecules, and hydrogen chloride also occurs as diatomic molecules. The equation for the reaction is Cl2 + H2 -> 2 HCl. Therefore, the number of molecules of gas is the same before and after the reaction if both gases are present in the initial mixture that has a volume of 40 cm3. In that instance, the volume is the same before and after the reaction. However, the question seems to imply that hydrogen is supplied from an outside source. In that instance, there will be twice as many molecules after the reaction as before, so that the final volume will be 80 cm3.
Determine the number of moles of sodium hydroxide produced when 2 moles of sodium and 3 mol of water react to form soduim hydroxide and hydrogen gas?
Na +H2O -> NaOH +(1/2)H2 Every mole of Sodium requires one mole of water to make one mole of Sodium Hydroxide. So two moles of Sodium will produce two moles of Sodium Hydroxide. If there are three moles of water in the initial reaction then there will be one mole of water left over after reacting with two moles of Sodium. This reaction will produce half a mole of hydrogen gas.
Which molecules are subject to further modification after initial synthesis?
the amino acid glycine
If 0.1MHAC is titrated with 0.1MNaoh and the dissociation constant ka of acetic acid is 1.8210-5 and the solubility product of water is 110-14 what is the initial pH of the acid?
I don't even understand what you are saying.
Was the Haber process used in the West fertiliser factory?
If hydrogen was stored onsite at the West Fertiliser factory then that is what the explosion was caused by after the initial fire which led to the hydrogen escape.
What is the name of ions with a positive charge?
it is written as the chemical initial with a + next to it for example, hydrogen would be H+ ion.
How did the Hindenburg explode?
The Hindenburg was filled with the element Hydrogen, which is extremely flammable. A spark ignited the hydrogen, which caused the skin of the zeppelin to burn furiously. The hydrogen fueled the inferno.
By what factor will the rate of the reaction change if the pH changes from 6.50 to 2.00?
Determine the initial hydrogen ion concentration Determine the final hydrogen ion concentration see the difference... 3.2×104
How does radiation affect the structure of a stable molecule such as a molecule of water?
Radiation can involve gamma rays, X-Rays, alpha particles and beta partcles. In terms of molecules these are termed ionizing radiation but they both ionize and break bonds to produce radicals. Ionizing radiations effect on water is to produce hydrogen peroxide, hydrogen, oxygen, ozone, . The pathways are complex involving the breakdown of water molecules into positively charged radicals, such as H2O+, neutral radicals OH and H and solvated electrons. Chain reactions coupled with reionization of some of the "initial" products makes for a complex situation.
Transfer of thermal energy by molecules bumping into each other?
The thermal energy of a molecule is also its kinetic energy, so KE1i + KE2i = KE1f + KE2f. (1 and 2 = molecules; i and f = initial and final energies).
What are strong acids and strong bases?
The STRONG ACIDS (all dissociate completely in water) are:Hydrochloric acid: HClHydrobromic acid: HBrHydroiodic acdi: HIsulfuric acid: H2SO4 (See note no.3 at the end of this page)Nitric acid: HNO3Perchloric acid: HClO4Some other acids that are sometimes considered strong are:chloric acid (HClO3), bromic acid (HBrO3), perbromic acid (HBrO4), iodic acid (HIO3), and per-iodic acid (HIO4).The STRONG BASES (all dissociate completely in water) are:Lithium hydroxide: LiOHSodium hydroxide: NaOHPotassium hydroxide: KOHRubidium hydroxide: RbOHCesium hydroxide: CsOHMagnesium hydroxide: Mg(OH)2Calcium hydroxide: Ca(OH)2Strontium hydroxide: Sr(OH)2Barium hydroxide: Ba(OH)2Notes:In fact OH- by itself is the only strong base in water.The strong bases with 2 OH- groups, release BOTH when added to water, and so the concentration of OH- in solution is twice the concentration of the added base.In constrast, although sulfuric acid (H2SO4) has two H+(= 2 protons), only ONE proton is completely dissociated when added to water. The second proton contributes to a lesser degree to the acidity of a sulfuric acid solution, than the first. (See also message no.2 on the discussion page for more nuance on this).
Write the expression for Ka for the dissociation of HBr?
Ka = [H+].[Br-] / [HBr] However the value of this expression is very high, because HBr is a STRONG acid, meaning that much more than 99.9% of the HBr molecules in water are protolized (ionized), making [H+] and [Br-] equal to the original (added) HBr amount, and the [HBr]-value nearly zero.
