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The two flask are filled with nitrogen gas and when both are immersed in boiling water the gas pressure inside the system is .5 atm. one of the flask is then immersed in an ice water mixture, keeping the other in the boiling water. calculate the new pressure for the system.
A student mixes 347 mL of water and 254 mL of 8.70 x 10-5 M greenfood dye solution. What is the concentration of this new dilute solution of green food dye?
Calculate the cell potential for the following reaction that takes placen in an electrochemical cell at 25 degrees C.
What is the uncertainty in the energy of the excited state. What is the percentage uncertainty if the energy is measure from the ground state
Which two starting materials are needed to prepare the following compound
To what volume should you dilute 130. mL of an 7.11 M CuCl2 solution so that 65.0 mL of the diluted solution contains 4.24 g CuCl2?
How many grams of KNO2 must be added to 5.00 liters of 0.67 M HNO2 solution to produce a buffer with pH = 3.15?
water and placed in a polarimeter tube 20.0 cm long. The measured rotation was -2.17° at 25 °C. Calculate the specific rotation of the compound.
Consider a solution resulting from the mixing of precisely 50.0 mL of 2.0 M NaOH with 50.0 mL of 2.0 M HCl. Will the mixture be corrosive and damage the skin or will it become a salt solution that is safe enough to drain down the sink.
An oxide of manganese consists of 77.4% manganese by mass. Determine its empirical formula and enter it in the box below.
Draw a structural formula that you would predict in aspirin in each of the following biological environments. a. Esophagus pH 6.8
Under what circumstances with regards to degrees of no polar characters are frenkel and schottky defects likely?
Benzene (A) melts at 6 0C and diphenylmethanol (B) melts at 65 0C. The solids are mutually immiscible. There is a eutectic at 1 0C, the eutectic solution being 20 mol % in B, and an unstable compound, AB2,
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