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Problem- Calculate the concentration in % (m/m) of a solution containing 37.0 g of LiBr dissolved in 390.0 g of H2O.
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Suppose you were asked to carry out an aldol condensation reaction between benzaldehyde and acetaldehyde, modeled after the experiment you performed with benzaldehyde and acetone.
When the container is re-sealed, the pressure is 185 kPa and the temperature is 10 degrees C. What is the ratio of the amount of gas lost?
What will be the freezing point and boiling point of this aqueous solution if given that Kb(H 2 O) = 0.51 oC/m and Kf = 1.86o C/m.
How many grams of (NH4)2SO4 should be present to prevent precipitation of Mg(OH)2 (s). The Ksp of Mg(OH)2 is 1.8x10^-11.
The design calls for reheating the liquid after the temperature has dropped to seventy degree Celsius the determine about how many stags and how many heaters are required for this process?
Calculate an unknown concentration of cobalt (II) nitrate if it and the original substance I was using both exhibit the color red? I'm pretty sure the answer is yes, but I want to double check.
When a student transfered HCL to a graduated cylinder for addition to the sample , several drops ran down the outside of the cylinder and on to the laboratory bench . Explan the potential danger of this situation , and suggest a good way to clean ..
the heat capacity of iron is 0.449 jgmiddotk. a blacksmith is hammering a 261 g horseshoe that has been heated to 1200
How many moles contain each of the following? 3.75 x 10^24 molecules CO2
(the freezing point constant is 1.86 C/m). On the basis of these data, one can conclude that the nonelectrolyte has a molecular weight of?
A portable photometer with a linear response top radiation registered 83.2 microamps with a blank solution in the light path. Replacement of the blank with an absorbing solution yielded a response of 451 microamps calculate
The hydrogen is recovered as its most stable oxide. When the oxide was made to decompose completely it released 1.274x10^25 molecules of oxygen gas.
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