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What is the pH of a solution of 25.0mL of 1.35x10-3M HCl(aq) that has been titrated with 10.73mL of 1.00x10-3M NaOH? Assume 25°C.
A 325 mL sample of solution contains 25.3 grams of CaCl2. Calculate the molar concentration of Cl- in this solution.
lead poisoning in children used to be treated with intravenous injections of EDTA. If the concentration fo EDTA in the blood of a patient is 2.55 x 10^-8 M and the formation constant for the complex, [Pb(EDTA)]2-, is 2.00 x 10^18
Calculate the mass of silver chloride in grams required to make 5.6 grams of silver plating?
Is it possible to convert Calcium Carbonate (CaCO3)into Calcium Oxide (CaO), mixing CaCO3 with water and vinegar and boiling this mixture?
Concentrated ammonia is added to an aqueous solution of copper(II) sulfate. Initially, a white precipitate forms. As more ammonia is added, the precipitate dissolves and the solution becomes a deep bluish-purple
What is the temperature change of the water if the downstream diameter is 3.8 cm? If it is 7.5 cm? What is the maximum temperature change for an enlargement in the pipe?
Calorimeters and heat capacity, If 2.500 g of Mg is burned in a constant volume calorimeter with a heat capacity of 1.10 kJ/degrees Celsius containing 1.500 L
Would the following rocedural errors causes an increase, a decrease, or no change in your calculated molecular weight? Indicate clearly the reasoning in each case
what is the molecular geometry around each central atom: CH2CH2(double bond) C=? C=? Also, for CH3 O CH3 C-O-C C=? O=? C=.
(0.0250 moles)(5 moles of the H20 / 1 mole of copper sulfate pentahydrate)(18.01 g/mol of H2O) = 2.25 grams, on top, in order to achieve the real molarity of CuSO4 when in solution?
How much energy (in calories) is needed to heat 12cm^3 of fat from room temperature (25C ) to its melting point (35C)? Specific heat of fat 0.45 cal/(g*C, and the density of fat is .94g/cm^3)
Calculate the pH of a buffer solution containing 0.65 M CH3COONa. Calculate the pH after 0.0010 mol HCl is added to 450.0mL of buffer.
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