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Problem- A stock solution is prepared by adding 20 mL of 1.2M NaNO2 to enough water to make 50 mL. How many moles of NO2-are in 40mL of the stock solution?
If possible just a to the point details about how you got the answer?
What is the equilibrium concentration of fluorine if the initial concentrations of bromine and fluorine were 0.113 moles/liter in a sealed container and no product was present initially
A voltaic cell is constructed by immersing a strip of silver in a 1.0M AgNO3 solution and a strip of cadmiun metal in a 1.0M Cd(NO3)2 solution. The circuit is completed by a wire and a salt bridge in the usual way. What is the cell potential for t..
Calculate the heat of the reaction. (Use the equation Q = s . m .?T where s is the specific heat, m is the mass of solution and ?T is the change in temperature)
Problem- Calculate the final temperature of a mixture of 150.0 g of ice initially at -14.0C 371.5 g of water initially at 91.5C
Question- What is the concentration of the unknown H3PO4 solution. The neutralization reaction is H3PO4 (aq)+3NaOH(aq) -->3H2O(l)+Na3PO4(aq)
consider the unbalanced equation c5h12l o2g --gt co2g h2ol if 25.2 grams of pentane c5h12 are burned in excess oxygen
The Ksp of AgCl at 25oC is 1.0 x 10^-10. Calculate the concentrations fo Ag+ and Cl- in a saturated solution of AgCl, and the molar solubility of AgCl.
In a reacting mixture K is the ratio of product to reactant concentrations. If Q
The student then titrated 25ml of the same buffer with 0.1115M NaOH. The observed titration curve is shown before. what is the concentration of the weak acid in the buffer?
Why is it important that your distillation apparatus to have a vent to atmospheric pressure and why do you put a boiling chip
Entered the volumes of standardized Na2S2O3 required to reach the endpoint, how many moles of IO3- were present in your samples?
The spacing between the lines in the microwave spectrum of H35Cl is 6.350*10^11 Hz. Calculate the bond length of H35Cl.
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