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61.0 mL of a 1.70 M solution is diluted to a volume of 268 mL. A 134-mL portion of that solution is diluted using 119 mL of water. What is the final concentration?
one can of soup contains 305 grams of soup. The soup contains .885 grams of salt. What percent of the soup is salt
An unkown metal is found to have a density of 19.3 g/cm3 and to crystallize in a body-centered cubic lattice. the edge of the unit cell is found to be 0.28864nm. What is the atomic mass of the metal? and Units?
Balance the following molecular equations for these reactions. Write the ionic equation for the reactions. Write the net ionic equation for the reactions.
Nitrogen dioxide and water react to produce nitric acid HNO3 and nitrogen monoxide.
How many grams of NH4Cl must be added to 424 mL of a 0.69 M solution of NH3 to prepare a pH = 9.00 buffer.
Hydrocarbon mixtures are used as fuels. What mass of CO2 gas is produced by the combustion of 189.2 g of a mixture that is 57.6 % CH4 and 42.4% C3H8 by mass
How many mL of 1.74 M HCl solution can react with 71.5 g calcium carbonate? CaCO3(s) + 2 HCl(aq) ? CaCl2(aq) + H2O(l) + CO2(g)?
For each of the following determine whether the calculated molarity would be too low too high or unaffected and explain why a. you did not react all of the excess zinc before filtering the reaction mixture
If the rod has a diameter of 1000 inches and we want to cut a 1.00 kg section of the rod. How many cm long should it be?
A solution is initially 0.050M in acetate, CH3COO- (Kb = 5.6 x 10^-10). 10.0mL of 0.10 M HCl is added. a) Write the chemical equation for the nuetralization reaction that occurs.
if 0.00484 mol N2O effuses through an orifice in a certain period of time, how much NO2 would effuse in the same time under the same conditions ?
To obtain the same antifreeze protection requires 76g of propylene glycol to replace each 62g of ethylene glycol. Calculate the mass of propylene glycol required to replace 7.00gal of ethylene glycol. The density of ethylene glycol is 1.12 .
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