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You are told to prepare a Ammonium buffer solution (0.15M, pH 8.5; 1.0L). You have HCl (0.15M); Ammonia (NH3) and Ammonium chloride (NH4Cl); solid 100g) (Kb for NH3 = 1.8 x 10-5). Please show how you are going to prepare this solution.
What are the metric and American engineering units of the diffusion constant?
An experiment requires 44.0 g of ethylene glycol, a liquid whose density is 1.114 g/mL. Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?
Draw a mechanism for conversion of acetaminophen into phenacetin in the presence of K2CO3 and CH3CH2I.
How many moles of iron are required to react completely with 45.0 L of chlorine gas according to the following reaction at 0 degrees
What was the mass percent of dissolved solids in the sea water? b.) The actual solution chloride content in the sea water was 2.69%
The isolated (S)-(-)-enantiomer was distilled in vacuum to give 1.5 g of pure amine. Calculate the yield of (S)-(-)-alpha-methylbenzylamine.
Compound Z has a solubility limit of 32.5 g/L in diethyl ether. Compund Z has a solubility limit od 2.5 g/L in water. You are given a 100 mL aqueous solution that contains 200 mL of compund Z. If you do three 33.3 mL extractions of Z using diethyl..
Write chemical equations for the reaction of fluorine with the following substances, making sure that the numbers and kinds of atoms are the same on both sides of the equations. If no reaction occurs, write noreaction
Polyethylene is a polymer consisting of only carbon and hydrogen. If 2.300 g of the polymer is burned in oxygen it produces
dissolved in enough water to produce 162.5 mL of solution and that 18.8 mL of this solution is titrated to the stoichiometric point with 14.6 mL of 0.0307 M HCl(aq). What is the percentage purity of the original sample?
"Besides the traditional colorimetric acid/base indicators, there is another class that doesn't use color, the olfactory acid-base indicators! These compounds smell or don't smell based on their pH
In an "anti-bonding" orbital between two atoms, the electrons involved in the bond spend "most of their time" a) in between the two atoms where they act to repel one another
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