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A certain ore is 32.8% nickel by mass. How many kilograms of this ore would you need to dig up to have 10.0g of nickel
Calculate the pH during the titration of 20.0mL of 0.27 M Propanoic Acid (HPr) with 28.0mL of 0.32 M NaOH. Ka=1.34 x 10^-5.
Write the cell diagram for a galvanic cell consisting of a tin electrode in contact with 0.0100M tin(II) chloride solution and a chromium electrode in contact with a 0.50M chromium (III) nitrate solution.
A chemist dissolves 0.9 g of an unknown monoprotic (one acidic H) acid in water. She finds that 14.6 mL of 0.426 M NaOH are required to neutralize the acid.
How much heat is liberated at constant pressure if .889 g of calcium carbanate reacts with 43.9 ml of .756 M hydrochloric.
Imagine dissolving a spoonful of sugar in a glass of water. Is the sugar-water combination classified as a compound or a mixture
Calculate the pH of a 100.0 mL buffer that is 0.158 M HClO and 0.099 M NaClO after adding 1.0 mL of 5.9 M NaOH solution. (Ka for HClO given at 2.9*10^-8 and assume the volume change of added NaOH solution is negligible)
What is the highest concentration of creatine that thermodynamically favors for phosphate group to be transferred from phosphocreatine to ADP? Assume T = 310 K. I know the answer is 45 I believe but how do you get it
What is the density of lead (in ) if a rectangular bar measuring 0.500 in height, 1.55 in width, and 25.00 in length has a mass of 220.9 ?
a student was asked to determine the purity of a contaminated sample of ammonium chloride.a sample of 5g was warmed
Metalloids conduct electricity better than nonmetals but not as well as metals
an equilibrium mixture at 594degc in a 1342-ml container involving the chemical systemnbspn2g 3h2g 2nh3gnbspis found
how much heat is required to convert 20.0 of ethanol at 23 to the vapor phase at 78 ? ethanol boils at 78. its density
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