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While 3.50 grams of unknown solute is mixed with 40 grams of PDB the consequential solution froze at 51.7 degrees Celsius. Explain what is the molar mass of the unknown solute? M.P. for PDB is 53.0 degrees Celsius and kf is 7.10 degrees Celsius/m.
The measured density of a certain gaseous amine at 0 C as a function of pressure is: P(atm) 0.200 0.500 0.800
if 8.000 grams of copper atoms is weighed out on balancewith an error of - 0.002g how many atoms of copper couldyou be
A coffee cup calorimeter contains 10.0 grams of water at 59.00 degrees C. If 3.00 grams Au at 15.20 degrees C is placed in the calorimeter, what is the final temperature of the water in the calorimeter. The specific heat of water is 4.18 J/g C; th..
if the radio waves transmitted by a radio station have a frequency of 70.6 Mhz, what is the wavelength of the waves, in meters?
If the volume of a gas container at 32.0°C changes from 1.55 L to 755 mL, what will the final temperature be
is submerged in 7.81g of water at 52.5 degrees C in an insulated container. what is the final temperature of both substances at thermal equilibrium.
Calculate the freezing point of a solution that contains 8.0 g of sucrose (C12H22O11) in 100. g of H2O. Kf for H2O = 1.86°C/m.
Write the balanced equation. BaCl2(aq) + 2AgNO3(aq) ? 2AgCl(s) + Ba(NO3)2(aq) b. What mass of AgNO3, in grams, is required for complete reaction with 0.156 g of BaCl2? What mass of AgCl is produced? 0.156 g BaCl2 0.2547 g AgNO3 0.2149 g AgCl Are t..
lithium nitride can be produced by the reaction below. if the percent yield for this reaction is 28.63 how much lithium
a design secures to parts with a line of hex-head bolts whose heads have a 12 distance across the flats i.e. take a
Calculate the mass fractions of the components in the mixture and the average molecular weight of the gas mix. b)The gases are mixed with 20% excess air and completely combusted with 100% conversion
Acetylene gas (C2H2) is produced as a result of the following reavtion. CaC2(s) + 2H2O(l) yield C2H2(g) +Ca(OH)2(aq)
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