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what is the pH of a solution formed by combining 200.0 mL of 0.16 M HCL with 300.0 mL of 0.091 M NaOH at 25 degrees celcius?
HCL (aq) + NaOH (aq) --> NaCl (aq) + H2O (l)
what amount of heat is produced? The specific heat of aluminum is 0.90J/g C?
Calculate the fraction of space that is occupied by packing spheres in the (a) simple cubic, (b) body-centered cubic, (c) face-centered cubic (close packed) structures
A reaction mixture initially contains 2.8M H2O and 2.6 M SO2. Determine the equilibrium concentration of H2S if Kc for the reaction at this temperature is 1.3 x 10^-6 ?
Number of Moles and Conversion, a) Number of moles of carbon atoms in 0.585 moles C4H10
Draw a Lewis structure for H3C-NO2. Both oxygen atoms are directly attached to the nitrogen atom. If you take formal charge considerations into account, how many -bonds are in the molecule?
Write a balanced chemical equation for the reaction of chlorine with thiosulfate ion, assuming an acidic solution.
How many calories are needed to raise the temperature of 525g of beryllium from 21.0 celsius to 375 celsius?
Some velomobile seats have been designed to hold ice packs inside their cushions. If you started a ride with ice packs that held 1700 g of frozen water at 0 degrees C , and the temperature of the water at the end of the ride was 32 degrees C.
The net charge of a polypeptide at a particular pH can be determined by considering the pK value for each ionizable group in the protein
Calculate the boiling point when 752 grams of ethylene glycol, C2H6O2, is dissolved in 3 kilograms of water.
Determine the molarity of a solution of twenty grams of Ammonium bromide, NH4Br, in enough water to produce 132 mL of solution?
Ethanol is a common laboratory solvent and has a density of 0.789 g/mL
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