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A typical loaf of bread contains 120 mg of sodium in each 1-ounce slice. What is the concentration of sodium in the bread in ppm?
A 40.2 g piece of solid iron (Fe(s)) heated to 105? is dropped into 100.0 g of water at 54.2?. Given that the specific heat capacities of Fe(S) and water are 0.450 J/g? and 4.184 J/g, respectively, what is the final temperature of the system
Calculate the fraction of hexane molecules that reside in the vapor above the solution
State the meaning of alpha and beta with regard to steroid structure, and indicate whether the hydroxyl group on ring A
Which of the following are more soluble in acidic solution than in pure water. Ca(OH)2 Mg3(PO4)2 PbBr2
used in high speed centrifuges to separate the parts of a biological cell. How many liters of 3.07 M sucrose contain 245 g of solute?
Why is it impossible to know both the position and velocity of an atom (i.e. electron). It states this in the Heisenberg uncertainty principle...but why
So what have we discovered? What is the elemental identity? Show work in detail please. Displacement - 0.00202 L
Show the reaction mechanism when 2-methyl-2-butanol, sulfuric acid(H2SO4), and water are in a mixture
A solution of .601g of the solid in 34.1g of the solvent diphenyl gave a freezing point depression of 1.17 degree celsius. Calculate the molar mass and molecular formula of the solid(k1 for diphenyl is 8.00 degree celsius/m)
The heat of fusion of acetic acid, the principal organic component of vinegar, is 45.9 cal/g.How much heat (in kilocalories) is required to melt 3.65 mol of solid acetic acid
Find delta heat formation of butane. C4H10 + 13/2 O2 ---> 4 CO2 + 5 H2O. Delta H comb= -2881.9 Delta Heat formation of CO2 = -393.5kJ/mol Delta Heat formation of H2O = -241.8kJ/mol What is the kJ
The flask was then shaken until the solution was uniform. A 60.0 mL sample of this glucose solution was diluted to 0.500 L. How many grams of glucose are in 100. mL of the final solution?
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