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A chemist dissolves 543.mg of pure potassium hydroxide in enough water to make up 140.mL of solution. Calculate the pH of the solution?
How much energy (in kilojoules) is required to convert 225 mL of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 g/mL?
What is the "mass per volume" percent sodium hypochlorite content of your household bleach product?
The reaction previously done was just having trans-cinnamic acid reacted with Br2 forming all the isomers with the double bond being broken and Br put into place.
The following equation represents an oxidation-reduction reaction that uses oxygen. Show how this reaction can also be defined as an oxidation-reduction reaction in terms of electron transfer Pb(s)+02(g) --> PbO(s)
Write a chemical equation for HF(aq) showing how it is an acid or a base according to the Arrhenius definition. Write a chemical equation for Ba(OH)2(aq) showing how it is an acid or a base according to the Arrhenius definition
What aspects of the model can be tested by experiments, and what aspects are conjectures that are not amenable to experimental verification
A saturated solution of sodium nitrate contains 80 g NaNO3 per 100 g H2O. How many grams of NaNO3 must be added to a solution containing 25 g NaNO3 in 75 g H2O to make the solution saturated
1-bromobutane reacts with formaldehyde. what is the product before the H30+ reacts on the product
If 69.5 kJ of heat is applied to a 1040. g block of metal, the temperature of the metal increases by 11.4°C. Calculate the specific heat capacity of the metal in J/g°C.
If a sample containing 3.00 mL of nitroglycerine (density = 1.592 g/mL) is detonated, how many total moles of gas are produced?
Calculate the pH of this buffer if it is .10 M HC2H3O2 and .10 M C2H3O2-. The Ka for CH3COOH is 1.8x10^-5.
Calculate the molarity (M) of a solution prepared by dissolving 1.00g of ethanol (C2H6O) in enough water to give a final volume of 101 mL.
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