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(a) How many grams of Na2SO4 are there in 15 mL of 0.50 M Na2SO4? (b) How many milliliters of 0.50 M Na2SO4 solution are needed to provide 0.038 mol of this salt?
The blade of an ice skate is ground to a knife edge on each side of the skate. If the width of the knife edge is 0.001in., and the length of the skate in contact with the ice is 3 in., calculate the pressure exerted on the ice by a 150lb man.
all chemical used in this test are binary compounds. what portion of the periodic table is responsible for the color
When performing your experiment, you add your first drop of oleic acid/benzene solution, and a lens forms immediately. What is wrong with your setup, and how can it be corrected
Titration of a 10.0mL solution of KOH requires 22.0mL of 0.0310M H2SO4 solution. What is the molarity of the KOH solution
Analysis of corrosion mechanisms and preventative measures
A 32.0-g sample of water at 260. K is mixed with 47.0 g water at 300. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.
the decomposition of phosphine ph3 follows first-order kinetics.4 ph3g gt p4g 6 h2gthe half-life for the reaction at
What is the concentration of CH3NH2 added to the solution?
How many grams of potassium chlorate decompose to form potassium chloride and 450. mL O2 at 128°C and 750. torr?
The following chemical equilibria are studied in this experiment. To become familiar with their behavior, indicate the direction, left or right, of the equilibrium shift when the accompanying stress is applied to the system
Breathalyzers determine the alcohol content in a person's breath by the following (unbalanced) redox reaction:
A system that had work done on it but which receives or loses no heat from or to the surroundings has
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