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A NaCl solution contains 20.0% NaCl by mass and has a density of 1.15 g/mL. The molarity of the solution is: (hint: assume 1000. g of this solution)
identify the species formed in the first step in the acid-catalyzed dehydration of 1-Methylcyclohexanol
An industrial hygiene survey has been conducted to determine whether exposure of workers to ethyl benzene (molecular weight 106) exceeded the OSHA PEL of 100 ppm.
a sample of Ringer's solution contains the following concentractions (mEq/L) of cations: Na 147, K 4 and Ca2 4. If CI- is the only anion in the solution
Mg + 2HCl --> MgCl2 + H2 For a mass of 0.013 g Mg and 5.0 mL of 1.00 M HCl, in a flask with V = 140.612 mL at 23.5?C. Calculate the vapor pressure of H2 and vapor pressure of water.
during a tritration 34.62 ml of 0.1510 m naoh was needed to neutralize 50.0 ml of an h2so4 solution. what was the
Specify the number of possible isomers of Trinitrophenol. Abbreviate ortho (o), meta (m) and para (p).
High-purity benzoic acid (C6H5COOH; delta H rxn for combustion= -3227 KJ/mol) is used as a standard for calibrating bomb calorimeters. A 1.221-g sample burns in a calorimeter (heat capacity= 1365 J/degrees Celsius) that contains exactly 1.570 kg o..
Calculate the number of atoms in 0.406 g of potassium (K). Enter your answer in scientific notation.
what is the % mass of acetic acid in the vinegar? Hint: What is the mass percent of aceditc acid titrated and what is the definition of % mass?
A solution is prepared by dissolving 1.50 g of compound in 25.0 mL H20 at 25 degrees Celsius. The boiling point of the solution is 100.45 degrees Celsius.
what is the molarity of the base? Show clearly all strps of calculation please and a generalized chemical equation
Electrochemistry has a wide range of applications. Research and describe one job, outside the field of chemistry, that uses electrochemical knowledge
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