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When one mole of solid NaOH is dissolved in 1L of solution, 44.5kj of heat are released. How much heat is released when 1.00g of NaOH is dissovled in 100.0mL of water?
a. 11.1kj
b. 17,800kj
c. 111kj
d. 0.111kj
A 270 mL stock solution contains 0.9 M Ca(CN)2. When 103 mL of the stock solution is diluted to 130 mL, how many moles of CN- ions will be contained in the dilute solution?
The concentration of ammonium ion in the solution of the salt called ferrous ammonium sulfate
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Calculate the mole fraction of water in this solution, assuming that the KI is completely dissociated. b) Predict the vapor pressure of water over this solution at 25 °C, assuming complete dissociation of the KI.
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The procedure uses 3.0M NaOH. However, the student notices that the only solution of NaOH is concentrated (19M ) NaOH solution. How many mL of water are needed to make 500mL of a 3.0M NaOH
A pressure measuring device indicates that the blood pressure of a normal person oscillates between 120 mm Hg (at the peak of the heartbeat) and 80 mm Hg (between heartbeats).
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