How many moles of cn- ions contained in dilute solution
A 200 mL stock solution contains 0.9 M Ca(CN)2. When 100 mL of the stock solution is diluted to 120 mL, how many moles of CN- ions will be contained in the dilute solution?
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Calculate the concentration of nitrate ions in the resulting solution (don't forget about the stoichiometry), and determine the uncertainty in that value. What is the primary contribution to the uncertainty?
1) what is the molarity of a kf(aq) solution containing 116g of KF in 1.00 L of solution? 2) What is the molarity of an H2SO4 solution if .25L os the solution contains .75 mol of H2S04?
A 14 mL solution of succinic acid has a concentration of 10 mM. This solution is titrated with 8 mM lithium hydroxide. Determine the pH of the solution at each of the titration volumes listed below:
A sample of ethanol (C2H5OH) has a mass of 43.8 g.
Specifications for steel plate to be used in the construction of a certain bridge call for the minimum yield to be greater than 345 MPa. Engineers will perform a hypothesis test to decide whether to use a certain type of steel.
What is the percent by mass of a solution in which 60. g of NaOH are dissolved in sufficient water to make 100 g of solution?
An aqueous antifreeze solution is 48.5% ethylene glycol (C2H6O2) by mass. The density of the solution is 1.062 g/cm3. Calculate the molality, molarity and mole fraction of ethylene glycol
Al3+ is reduced to Al(s) at an electrode. If a current of 2.00 ampere is passed for 48 hours, what mass of aluminum is deposited at the electrode? Assume 100% current efficiency.
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