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An experiment requires 40.0 of ethylene glycol, a liquid whose density is 1.114 . Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?
The water sample is put into a Nebulizer attached to an ICP Spectrometer and the absorbance peak measured at the proper wavelength of lead. Standards are also analyzed to produce a calibration curve for comparison
A system conducts 238 cal of heat to the surroundings while delivering 331 cal of work. what is the change in internal energy of the system (in cal).
An aqueous solution is made by dissolving 25.8 grams of magnesium nitrate in 395 grams of water. What is the molality of magnesium nitrate.
Determine the theoretical mole ratio of NaCl to NaHCO3.
The products include Cr3+ ion and I2. What was reduced in the reaction and what was the reducing agent?
given the reaction ca 2h2o rarr caoh2 h2what is the total number of moles of ca needed to react completely with 4.0
15.73 grams of a solution containing 8.43% acetic acid, HC2H3O2, is mixed with water and titrated with a 0.523 M solution of KOH. How many milliliters of the KOH solution are required to reach the equivalence point?
Fiber is an indigestible cellulose product that passes through our system without getting metabolized. If your burned food contained a lot of fiber, how would you expect your calorie value to the "posted" calorie value on the box
What volume of 0.205 M K3PO4 solution is necessary to completely react with 122mL of .0110M of NiCl2? 2K3PO4+3NiCl2=Ni3(PO4)2+6KCl
a)white the mathematical expression for the equilibrum constant,keq,as a function of the concentrations of the products and reactants for this reaction b)provide two specific ways whereby the le chatelier principle may be applied to this equilibri..
what is the concentration of the new solution if 2.0 ml of h2o is added to 8.0 ml of a 0.30 m solution to make a new
How many liters of N2 gas result at 25.0oC and 1.10 atm pressure when 125 grams of NaN3 react
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