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A solution of salt (molar mass 90 g mol-1) in water has a density of 1.29 g/mL. The concentration of the salt is 35% by mass.
a. Calculate the molality of the solution. b. Calculate the molarity of the solution. c. Calculate the total number of moles in the solution. d. Calculate the mole fraction of the salt in the solution
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"Alpha" iron metal crystallizes with the body-centered cubic unit cell. If the unit cell is 287 pm on each side, what is the density of alpha iron?
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The paint formerly used on some storage tanks contained aluminum powder, which reflected heat from the surface of the tanks. Why did experts recommend grounding these tanks
Calculate the amounts of C 7 H 8 , C 7 H 16 , and H 2 in the output stream express your answer (in mol s -1 ).
To a sample of alkaline earth metal carbonate (MCO3; 0.250 g) was added 30.0 mL HCl (0.250 mL). Carbon dioxide gas evolved out from the solution. After the reaction was completed.
you are taking a walk when a bid mean dog growls and begins to chase you. The increased epinephrine will increase? a glycolysis in the liver b glycolysis in the muscle
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