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What is the total number of joules of heat absorbed by 65 grams of water when the temperature of the water is raised from 25 degrees Celsius to 40 degrees Celsius?
What is the final temperature of the water and aluminum assuming no heat was lost during the energy exchange.
when a pure solvent freezes the temperature remains constant till all liquid is frozen thus the freezing point. when
Bond energy is the change in enthalpy that accompanies the dissociation of one mole of the bond in the gaseous state.
The boiling point of a liquid increases as the pressure above the liquid increases. In contrast to boiling food in an open pot, pressure cookers trap the steam, which raises the internal pressure, which raises the boiling point of water, causing a..
Presume you have just added 200.0 ml of a solution containing 0.5000 moles of acetic acid per liter to 100.0 ml of 0.5000 M NaOH. Explain what is the final pH. The Ka of acetic acid is 1.770 ×10-5.
you measure 2.34 grams of potassium dichromate k2cr2o7 into a volumetric flask. you dilute the potassium dichromate
The initial solution pH depend on both the Ka and the concentration of the weak acid, so measuring the initial pH is insufficient to determine both these solutions.
explain why it is appropriate to group a polyatomic ion in parentheses in a chemical formula, if more than one of that ion is present in the formula.
An enzyme is complementary to the transition state - not to the substrate.- What happens to the energy of catalysis (DGcat) when an enzyme is truly complementary to its substrate?
Yet a generic figure is 1kB per particle. Assuming this figure is exact, what is the molar enthalpy of melting of Argon (in kJ/mol), whose melting temperature is 83.85K?
Calculate the pH of the solution after 10.0, 20.0, and 30.0 mL of acid have been added; pKb of (CH3)3N=4.19 at 25 degrees C
combining 0.228 mol of FecO3 with excess carbon produced 13.2g of Fe. Fe2O3 + 3C -> 2Fe + 3CO what is the actual yield of iron inn moles? what is the theoretical yield of iron in moles? what is the percent yield
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