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A 55.0 mL solution of 0.155 M iron (III) perchlorate is prepared. This solution is then titrated with 27.6 mL of 0.250 M potassium hydroxide. What is the concentration of iron (III) perchlorate that remains in the solution
Explain how it is that the concentrations of chloride ions in these beakers are different even though the concentrations of each substance(compound) are the same.
Do these lambda maxs indicate an increase or a decrease in the energy of the light absorbed as the number of EN ligands bound to Cu(II) increases
The quadratic formula is used to solve for x in expressions taking the form of a quadratic equation: ax2 bx c = 0, Solve for x in the following expression using the quadratic formula
A hot-air balloon has a volume of 875 L. What is the original temperature of the balloon if its volume changes to 955 L when heated to 56 degrees celcius
how might you be able to build a buffer solution of a given molarity at any pH without doing a single Henderson- Hasselbalch calculation?
How many grams of F- must be added to a cylindrical water reservoir having a diameter of 8.88 × 102 m and a depth of 78.88 m? (b) How many grams of sodium fluoride, NaF, contain this much fluoride?
What mass of KBr is needed to prepare 325 mL of 0.750M? How many mL of 2.50M KBr is needed to prepare this same solution
The total precipitate was dissolved in HCl + HNO3. When the solution thus formed was treated with excess NaOH followed by H2O2, a colorless solution and a reddish brown precipitate were formed. The precipitate was found to be soluble in HCl, H2SO4..
What would you observe in a sample which contains both silver and lead ions if the first precipitate (AgCl (s) and PbCl2 (s)) was not treated with hot water
36.0% sodium chloride or table salt, and the rest being sodium bicarbonate or baking soda, How many grams of baking soda are present in the sample?
The best design for rockets is one in which both fuel materials run out at the same time to minimize excess mass. If the total mass of both components in a decaborane/oxygen rocket must be 3.011E+6g, what mass of liquid oxygen should be used
The mass of the final solution is 73.0 grams, and its heat capacity is 3.85 J/g°C; the heat capacity of the calorimeter is 5.0 J/°C. Calculate the ?Hreaction in kJ/mol metal.
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