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Calculate the pH for 5 x 10-10 M HClO4. Please show work. The answer should come out to pH7 when auto-ionization of water is factored into the calculation.
What metal occurs in a vast limestone deposits and combines with oxygen to form an oxide with a formula MO ?
Determine the mass of RbCN required to prepare a 500 mL solution which is .12 M RbCN (MW = 112 g/mol).
The forensic technician at a crime scene has just prepared a luminol stock solution by adding 20.0g of luminol into a total volume of 75.0 mL of H 2 O .
Rubidium has two common isotopes, 85Rb and 87Rb. If the abundance of 85Rb is 72.2% and the abundance of 87Rb is 27.8%, what is the average atomic mass of rubidium.
Write the equation for the reaction that occurs when Zn is placed in a 1M HCl solution, and determine the net EMF for the reaction.
water can be expressed in polynomial form, vs the number of moles of ethanol (nEtOH), as 1002.93+54.6664*nEthOH-0.36394*nEthOH^2+0.028256*nEtOH^3, the partial molar volume of ethanol has its minimum value at m > 0.004 mol/kg.
Sucrose and glucose are nonvolatile. What is the mole fraction of water in this solution?
mixture of the same bromoalkanes, and they both undergo hydroboration/oxidation to give a mixture of the same alcohols. Determine What is the structure of B?
calculate the heat released when 166g of water at 23 degrees celcius is converted to ice at negative 10 degrees celcius
A dead alkaline battery is found to contain a compound of Mn and O. Its analysis gives 69.9% Mn and 30.4% O. What is the empirical formula for the substance.
which of the following transition metal complexes is diamagnetic?
suppose that 1.15 g of rubbing alcohol (C3H8O) evaporates from a 65.0 g aluminum block. If the aluminum block is initially at 25 C, what is the final temperature of the block after the evaporation of the alcohol?
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