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The weak acid, hypochlorous acid HClO, has a Ka= 3.0x10-5.
A buffer is prepared by dissolving 10.0 g of NaClO and 10.0 g of HClO in enough water to make 0.500 L of solution. What is the pH of this solution?
An ice cube of 15.1 grams is placed into 304 grams of H 2 O. compute the change in temperature in the H 2 O upon completing melting of the ice.
Bond energy is the change in enthalpy that accompanies the dissociation of one mole of the bond in the gaseous state.
How many moles of silver metal are produced in 1.2 hours by the electrolysis of AgNO3(aq) using a current of 6.0 A
A close chemical relative of the banned insecticide DDT is methoxychlor (C16H15Cl3O2). Methoxychlor is currently used as a home insecticide. Calculate the mass percent of oxygen in methoxychlor.
Compute mass of Carbon dioxide formed from the decomposition of 59.0 grams of NaHCO 3 ?
Enough of a monoprotic acid is dissolved in water to produce a 1.59 M solution. The pH of the resulting solution is 2.88. Calculate the Ka for the acid. Ka=?
When aqueous HCl neutralizes benzoate anion, one of the actual acid species present is the hydronium ion, H3O+. Which is the more prevalent acid, HCl (pKa = -2.2) or H3O+ (pKa = 1.74). Write an equation that shows how H3O+ forms from HCl.
Some sample solution was spilled into the outside of the graduated cylinder while preparing the sample, and before determining the volume.
An acetate acetic acid buffer has a pH = 5.00, containing 0.100 M NaOAc. Calculate the pH of the solution after adding 10 mL of 0.10 M NaOH to 100 mL of this buffer.
in discussing solar-thermal so far weve mostly focused on the large central-station power plants that generate
How would this change the experimental procedure for the conversion of CuSO4 to metallic copper
After 12.76 g of a non-volatile solute was dissolved in 100.0 g of pure toluene, the vapor pressure of toluene dropped from 235 Torr to 187 Torr. Find the molar mass of the solute. Molar mass of toluene is 92.1 g/mol.
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