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How much energy is needed to convert 180 grams of ice at -10ºC to liquid water at 10 ºC? (The molar heat capacity ofliquid water is 75.4 J/mol ºC; the molar heat capacity of iceis 40.2 J/mol ºC. The molar heat of vaporization of water is40.7 kJ/mol. The molar heat of fusion of water is 6.02 kJ/mol.)
a 36 gram sample of copper at 99.8 c is dropped into a beaker containing 207 grams of water at 18.5 c. what is the
A compound is known to contain 51.27% carbon and 27.30% oxygen by mass. Each molecule contains two atoms of oxygen. What is the molar mass of this substance
In the reaction where the potassium chlorate is decomposed into potassium chloride and oxygen. How much oxygen can be made from 45.8g of the potassium chlorate?
At 25 C the reaction from Part A has a composition as shown in the table below. What is the free energy change,delta G , in kilojoules for the reaction under these conditions. C2H2(g) 4.15 H2(g) 4.45 C2H6(g) 2.25×10-2 ?G = ??? kj
Draw a reaction coordinate diagram for each of the following nucleophilic addition-elimination reactions. a. the nucleophile being a weaker base than the leaving group
The enthalpy of hydration associated with anhydrous LiI forming LiI?2H2O is -45.53 kJ/mol. The enthalpy of solution for LiI?2H2O is -14.77 kJ/mol. What is the enthalpy of solution for LiI
The compound Pb3O4 (red lead) contains a mixture of lead(II) and lead(IV) oxidation states. What is the mole ratio of lead (II) to lead (IV) in red lead
Write a dissolution for each precipitate that is soluble in CH3COOH: Na2C2O4, Pb(NO3)2, Al2(SO4)3, NaCl, NaOH
sulfur dioxide is an unwelcome result of burning soft coal in power plants. Some of the sulfur dioxide ends up as sulfuric acid ( H2SO4) in acid rain.
if a molecule of no diffuses a distance of 0.778 m from a point source calculate the distance m that a molecule of he
Write the structural formula of the main organic product for the following reaction between an alcohol, tosyl chloride, and then a nucleophile.
How many moles of oxygen are generated during the thermal decomposition of 7.75 g of lead (IV) oxide
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