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A solution that is 40% iron (III) chloride by mass has a density 0f 1.049g/ml . What mass of iron (III) chloride in g is present in 2.50 ml of this solution
How many liters of water vapor can be formed by the reaction of 275.0 liters of oxygen gas and 250.0 grams of pentane? Which reactant is limiting? How many grams of the excess reactant are left over?
what is the percent relative error? Please explain by showing work. Are these measurements more precise or more accurate? What is the purpose of repetition in measurements?
solution containing the iron(II) thiocyanate complex is 0.45, Then calculate the mile per liter concentration of the complex
If 18.4 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia?
A solution contains 25 mmol of H3PO4 and 10. mmol of NaH2PO4. What volume of 2.0 M NaOH must be added to reach the second equivalence point of the titration of the H3PO4 with NaOH?
Exothermic Reaction. Chemical process in which system evolves resulting in heat transfer to the surroundings. Endothermic Reaction: Chemical process in which system evolves resulting in heat transfer to the system. A. Burning wood in a campfire.
Look up the molar mass and the density of 2-chloro-2-methylpropane in a reference book such as The Merck Index. Calculate the number of moles of HCl that are produced by complete hydrolysis of 1.0 mL of 2-chloro-2-methylpropane.
An aqueous solution contains 4.90% NH3 (ammonia) by mass. The density of the aqueous ammonia is 0.979 g/mL. What is the molarity of NH3 in the solution?
Which of the following gases at 500 K would show most ideal behavior?
Draw the Lewis structure of formic acid, HCO2H. (Hint: C is the central atom. One of the H is bonded to an O.) How do we know which of the possible structures for HCO2H is more likely to be correct?
describe how these limestone objects are corroded by the sulfuric acid in polluted air. What chemical reaction is involved here?
the indicated ph value for the titration of 50.00 ml of .100 M benzoic acid (ka = 6.3 x 10^-5) with .0500 M KOH: ph = 4.20, 4.50.8.06, 11.50. write te reaction for KOH reacting with benzoic acid and the equilibrium for each pH value
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