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A chemist dissolves 0.099 g of CuSO4 · 5 H2O in water and dilutes the solution to the mark in a 500-mL volumetric flask. A 36.1-mL sample of this solution is then transferred to a second 500-mL volumetric flask and diluted. What is the molarity of CuSO4 in the second solution?
A sample containing 0.187 g Cl- is dissolved in 50.0 mL water.How many moles of Cl- ion are in the solution?What is the molarity of Cl- ion in the solution.
A rectangular beam made using concrete with f'c = 6000 psi and steel with fy=60000 psi has a width b= 20 in. The concrete modulus of rupture fr=530 psi. The elastic moduli of the concrete and steel are, respectively,
Does ammonium chloride added to water produce a simple solution, does the ammounium chloride dissociate or does a chemical reaction occur resulting in a new set of compounds.
Helium is compressed isothermally and reversibly at 100 celcius from a pressure of 2 to 10 bar
The nitro group needs to be taken off as well. I can't seem to find any reference materials on what reagrents can be used. Can you please advise?
Reduction of Conjugated Ketones with Sodium Borohydride, Suggest mechanisms of reaction for 1,2-addition and for conjugate addition (1,4-addition) of NaBH4 to a conjugated
When CuCN is used in the Sandmeyer reaction, the preparation is generally carried out in a neutral medium. Can you offer an explanation of why this is done?
A pound of coffee beans yields 30 cups of coffee (4 cups = 1 ). How many milliliters of coffee can be obtained from 1.0 of coffee beans.
Calculate the change in pH when 6.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq)
A quantity of 7.031 g of an organic compound is dissolved in water to make 282.0 mL of solution. The solution has an osmotic pressure of 1.43 atm at 27°C.
how many Liters of water can be made from 34 grams of oxygen gas and 6 grams of hydrogen gas at STP? what is the limiting reactant for this reaction?
At a temperature of 425 0C and a pressure of 735 mmHg, how many grams of {NH_3} can be produced when 4.40 L of {NO_2} react.
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