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If a procedure calls for 26.0 ml of concentrated HCl, what are the mass and moles of HCl actually used in the reaction?
1. How many mL of concentrated HCl would be necessary to prepare 50.0ml of a 10.0 % HCl solution?2. Concentration HCl acid is listed as 38.0% w/w. What is the other 62.0% of the concentrated HCl solution?
The heat capacity of the calorimeter was 15.7J/K. The final temperature in the calorimeter was 32.4 degree C. What is the specific heat capacity of the mineral?
You have a gas occupying 75L at 800 torr and 315K. What is the volume if the pressure is decreased to 600 torr and the temp is changed to 127 C?
trigonal bipyramidal E.octahedral F. T-shaped, G. see-saw, butterfly, or unsymmetrical tetrahedron, What is the hybridization of antimony
Calculate the volume of carbon dioxide at 20.0C and .950 atm produced from the complete combustion of 2.50 kg of methane. Compare your result with the volume of CO2 produced from the complete combustion of 2.50kg of propane (C3H8)
How would the absorbance of a NaSCN have been affected if .30 M Fe(NO3)3 had been used in place of .20 M. (In the case that the reaction has been completely driven to FeSCN2+
The hydrogenation of ethylene is: C2H4(g) + H2(g)-----> C2H6(g). Calculate the change in enthalpy of Hydrogenation from 298 K to 398 K. The Cp values are C2H4: 43.6 J/K mol and C2H6: 52.7 J/K mol
Which set of the following choices contains all the true statments and none of the false statements? a) The H atom and Be3+ ion each have one electron. Their line spectra are identical.
a platinum electrode is immersed into an aqueous solution of 1m nacl ph7 that issaturated with n2g at s.t.p. i.e.
solutions of CaCl2 and urea at 25 C are .961 and .398 atm, respectively. Calculate the Vant Hoff factor for the CaCl solution?
Predict the outcome of reactions that occur when a solution having [Cu2+]/[Fe2+] = 10 comes in contact with hydrotroilite (FeS). What will be the ratio of [Cu2+]/[Fe2+] in the solution after equilibrium is established?
identify the oxidizing agent in the reaction mg2hclh2mgcl2 the generation of hydrogen gas in the
a 4.40 g piece of solid co2 dry ice is allowed to vaporizechange to gas in a ballon. the final volume of balloon is
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