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How much acid of 0.5N concentration would be required to fully neutralize an 8.6g sample of sodium stearate?
A human body contains 6 liters of blood. The hemoglobin content of blood is about 15.5g/100 mL of blood. The approximate hemoglobin molecular weight is 64,500g/mol. How many moles of hemoglobin are present in a typical adult
Calculate delta H of this reaction. Assume that the total volume is the sum of the individual volumes and the density and specific heat capacity of the solution are the same as for pure water. d for water=1.00g/mL; c for water=4.184 J/g degrees Ce..
considering the heisenbergs uncertainty principle compute the uncertainty in the position of a 1.50-mg mosquito moving
consider a reaction between ideal gases which occurs at constant temperature. if the total moles of gas does not change
At a certain temperature, a saturated solution contains 537 g of NaOH(s) per liter of solution. Calculate the molarity of this saturated NaOH(aq) solution.
What is the mass of a glass empty beaker? What is the mass of a glass beaker with 60mL water?
The acid-dissociation constant for an acid-base indicator HIn is 0.0000438. At 600 nm, the molar absorptivities are 2230 for HIn and 8900 for In-. Calculate the absorbance at 600 nm of a 1.00 x 10-4 M solution of the indicator at pH 4.81 in a 1.00..
Copper dissolves in nitric acid, producing copper (ll) nitrate. After reaction with sodium hydroxide and heating, copper nitrate changes to copper (ll) oxide. Calculate the percent yield of this process if 1.075 g of copper produced 1.075 g of cop..
Determine the pH and pOH for each of the following solutions: a)[OH^-]=1.0x10^-7 M b)[H3O^+]=4.2x10^-3 M c)[H3O^+]=.0001 M d)[OH^-]= 8.5x10^-9 M
Titration of the I2 produced from .1045g of primary standard KIO3 required 30.72ml of sodium thiosulfate, Calculate the concentration of the Na2S2O3
A buffer is made by dissolving 0.037 mol of potassium fluoride in 135 mL of 0.0237M hydrofluoric acid. Assume no volume change when the salt is dissolved. Calculate the pH of the buffer.
If one atom of carbon-14 weighs 14.0035 atomic mass units and one atomic mass unit is equal to 1.660539*10^-24 grams, what is the mass of 25 atoms of carbon-14 in grams?
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