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All of the following are physical properties of a substance in a liquid state EXCEPT a.indefinite volume b.definite mass c.not easily compressed d.indefinite shape
Show that steel consisting of 100% cementite corresponds to a carbon concentration of 6.7%. The molecular weight of iron and carbon are 55.847 and 12.011 respectively.
The fluoridation of city water supplies has been practiced in the US for several decades. It is done by continuously adding sodium fluoride to water as it comes from a reservoir.
what class of compounds is this characteristic and why and how can the relative scarcity of drugs that fluorescence be an advantage in some instances and a disadvantage in others?
What mass of Cu is electroplated by running 13.0 A of current through a Cu^2 solution for 4.00 h? Express your answer to three significant figures and include the appropriate units.
a student reported the following for his unknown mixture 25 nh4cl 30 nacl and 50 sio2. assuming that the calculations
Calculate the number of moles of aluminum, sulfur, and oxygen atoms in 8.00 of aluminum sulfate, Express the number of moles of Al, S, O, and atoms numerically, separated by commas.
a sample of an unknown gas effuses in 10.5 min. an equal volume of h2 in the same apparatus under the same conditions
What mass of O2 does the tank contain. kg (b) What volume would the gas occupy at STP? L (c) At what temperature would the pressure in the tank equal 150. atm
Estimate the value of the equilibrium constant at 610K for each of the following reactions. Delta Hf and S for BrCl is 14.6 kj/mol and 240.0 J/mol*K , respectively. Br2(g)+ Cl2(g) --> 2BrCl(g)
calculate the molarity of an aqueous naoh solution if 32 ml of it is required to titrate .6789 grams of oxalic acid to
A standard l00-ppm quinine solution registered 125 when measured under conditions identical to those for the diluted sample. Calculate the mass in milligrams of quinine in the tablet.
both the reduced and oxidized derivatives of cuiih262 show no tendency to distort. explain why there would be no
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