Determine what is the final concentration
63.0 mL of a 1.20 M solution is diluted to a total volume of 218 mL. A 109-mL portion of that solution is diluted by adding 139 mL of water. What is the final concentration?
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What weight of A would be removed by four successive extractions with 25-mL portions of ligroin? how much ligroin would be required to remove 98.5% of A in a single extraction?
The acceleration of a certain simple harmonic oscillator is given by a = -(15.8 m/s2) cos (2.51t). What is the amplitude of the simple harmonic motion?
Analyze two of the five major categories of hazards associated with terrorism. Be sure to include which type of attack would be most logical to conduct in the United States and why?
A 50.0-L stainless steel container was charged with 3.00 atm of hydrogen gas and 4.00 atm of oxygen gas. A spark ignited the mixture, producing water.
What cognitive skills might be important prerequisites for the formation of an attachment relationship? What is the social and psychological costs when children don't form attachments?
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Calculate the mass of FeS formed when 9.42 g of iron metal reacts with 8.50 g of sulfur according to the following reaction.
What is the lift due to bernoulli's principle on a wing of area 80 m^ 2 if the air passes over the top and bottom sufaces at speeds of 340m/s and 290m/s, respectively?
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