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What is the density of a sample of brass if the sample has a mass of 26.27 g and a volume of 3.07 cm3?
a quantity of nitrogen initially held at a pressure of 3.80 atm in a 1.00l container at the temperature of 27 degree
As of the writing of this text, EPA standards limit atmospheric ozone levels in urban environments to 84ppb. How many moles of ozone would there be in the air above Los Angeles County.
Write the net ionic equation for this reac- tion occuring in water: Calcium sulfide and iron(II) bromide are mixed to form iron(II) sulfide and calcium bromide.
If the caffeine concentration in a particular brand of soda is 3.35 mg/oz, drinking how many cans of soda would be lethal?
Which of the following is correct? A) Solubility is the concentration of unsaturated ions in solution. B) Ksp is the same as the solubility. C) Ksp is an equilibrium constant and solubility is the concentration of a saturated solution
Given 6.4 mL of sulfuric acid (98%) calculate the number of mmols. (MW H2SO4: 98.08 g/mol, density: 1.840 g/mL)
What is the final state of the system when the piston has stopped and there is a balance of forces across the piston? Do not neglect the fact that during motion there may be some friction between moving parts. Consider cases in which the piston is..
The stopcock connecting a 2.25 L bulb containing oxygen gas at a pressure of 4.00 atm, and a 5.25 L bulb containing neon gas at a pressure of 8.00 atm, is opened and the gases are allowed to mix.
the density of solutions are assumed to be the same as water. if the density of all 3 solutions was actually 1.1 gml
what are the chemical shift,integration(#H),multiplicity,assignment and type of hydrogen in C8 H10 O and i have to identify the unknown. help please i have 4 signals
if a lighter contains 2.5 ml of liquid butane den 0.8 gcm3 how much potential energy does the lighter contain
The general test for Type 2 diabetes is that the blood sugar (glucose, C6H12O6) level should be below 120 mg per deciliter. Convert this concentration to molarity
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