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(a) Three spheres of equal size are composed of aluminum (density = 2.70 g/cm3 ) silver (density = 10.49 g/cm3 ) , and nickel (density = 8.90 g/cm3 ) List the spheres from lightest to heaviest.
(b) Three cubes of equal mass are composed of gold (density = 19.32 g/cm3 ) platinum (density = 21.45 g/cm3 ) and lead (density = 11.35 g/cm3 ) List the cubes from smallest to largest.
the concentration of cholesterol in the blood serum of a normal adult is approx 200mgdl. how many grams of cholesterol
a container consists ofnbsp 1 mole of x andnbsp 2 moles of y are placed in.it is given that thenbsp density of the gas
When 50.0mL of a 1.00M solution of Fe(NO3)3 is mixed with 50.0mL of a 1.00M solution of NaOH a precipitate forms. Determine the mass of the solid produced in this reaction
If 495g NaOH is dissolved in a final volume of 20.0 L, what is the molarity of the solution.
How much ozone is used if the following reaction releases 568kJ of energy in the form of heat? Pb(s) + C(s) + O3(g) ---------> PbCO3(s)
Rank the following slightly insoluble compounds from the most soluble to the least soluble. CaCO3 Ksp = 2.8 x 10-9 Co(OH)2 Ksp = 1.6 x 10-15 CaF2 Ksp = 3.9 x 10-11 BaSO4 Ksp = 1.1 x 10-10
A flask is charged with 0.983 atm of N2O4 (g) as well as 0.752 atm NO2 (g) at 25 degrees C. Explain the equilibrium reaction is N2O4 (g) arrow pointing in both directions 2NO2 (g). After equilibrium is reached, the partial pressure of NO2 is 0.413..
An unknown gas effuses through a porous barrier at a rate that is 0.752 times the rate of Ar (g) under the same conditions. Which of the following is the unknown gas. Cl2 (g) He (g) O2 (g) N2 (g) H2 (g)
If 4 liters per minute of 100 ppm 1,1,2-trichloroethane solution is to be reduced by 99% in a diffused air CSTR, what air flow is required if equilibrium is assumed. What air flow is needed for 90% removal
A manufacturer claims that their new candy bar contains fewer than 40 Calories per serving. As a technician in an independent laboratory, you use a bomb calorimeter with a specific heat capacity of 7.35J/gC.
a certain transition metal compound contains a cobalt ion ofunknown valence ligands of water molecules and chloride
Calculate the pH during the titration of 50.00 ml of 0.0500 M NaOH with 0.1000 M CH3CO2H after the addition of the following volumes
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