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ou are asked to make a 500-g rod with the zn-cu-al-sn alloy of 80 at.% Zn, 5 at. % Cu, 10 at. % Al. 5 at. % Sn. How many grams of Zn, Cu, Al, and Sn are required for making this rod?
A piece of metal, mass of 8.50 g is heated to a temperature of 95.00 c. It is immediately placed in a calorimeter. Find the specific heat capacity?
give an examples of a free-radical polymerization reaction e.g. polymerization of ethylene into polyethylene. indicate
Consider 3 amino acids A, B, and C. How many trimeric isomers would be formed. Show them.
write the balanced net ionic equation for the reaction that produces the solid. Include phases and charges. c) calculate the percent sodium chloride in the original unknown mixture.
If one cubic centimeter section of a reactor has a macroscopic fission cross section of 0.989 cm-1, and if the thermal neutron flux is 1x10^15 n/cm2 s, calculate the fission rate per cubic centimeter.
What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself.
a solution containing 16.9 of a nonvolatile molecular compound in 250 g water has a freezing point of -0.744...what is
What is the molarity of 175 mL of a solution containing 2.18 g of Na2SO4·10H2O? 0.00377 M B. 0.644 M C. 0.00878 M D. 0.00118 M E. 0.0387 M
Which of these square planar complex ions can have cis-trans isomers. A. [Pt(NH3)2Cl2] B. [Pt(NH3)4]2+ C. [Pt(NH3)Cl3]- D. [Ni(NH3)3Cl]+ E. [Ni(NH3)4]2+
Calculate the volume in mL required to provide 4.30g of ethanol ( C2H6O) from a 1.50M solution
The pH of the resulting solution is 2.65. Calculate the Ka for the acid.
At 700 degrees C, the total pressure of the system is found to be at 3.45 atm. If the equilibrium constant Kp for this reaction is equal to 1.52, calculate the equlibrium partial pressures of CO2 and CO gases.
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