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Why is comparing moles of reactants without using the balanced equation not the proper way to determine the limiting reactant? Is it because you need to have it balanced to understand the moles being used correctly?
A student found that her mixture was 15% NH4Cl and 75% SiO2 .Assuming her calculation are correct, what did she most likely do incorrect in her experiment?
At 63.5C the vapor pressure ofH2O is 175 torr, and that of ethanol,C2H5OH, is 400 torr. A solution is madeby mixing equal masses of H2O andC2H5OH. What is the molality of ethanol in the solution
For the following reaction, 5.07 grams of carbon disulfide are mixed with excess chlorine gas. The reaction yields 9.09 grams of carbon tetrachloride.
Based on their activation energies and energy changes and assuming that all collision factors are the same, which of the following reactions would be slowest in the reverse direction
consider a 0.0500m HClO2 is a moderately weak electrolyte acid such that 36% of the molecules dissociate when dissolved in water. calculate the van't hoff factor
The indicator dilution method is a technique used to determine flow rates of fluids in channels for which devices like rotameters and orifice meters cannot be used.
How many moles of gas(air) are in the lungs of the average adult with the lung capacity of 3.8 L. Assume the person is at 1.00 atm pressure and has a normal body temperature of 37 degrees celsius.
a sample contains 67.0% of the R isomer and 33.0% of its enantiomer, what is the observed specific rotation of the mixture?
a sample weighing 25g starts at 99 degrees celsius. it is put in a calorimeter containing 100g water. the water
Consider the following reaction. N2 + 3H2 -> 2NH3 . 28.0 grams of N2 and 5.04 grams of H2 are reacted, producing 17.8 grams of NH3. What is the percent yield?
a second order reaction has rate constant .028M^-1hr^-1. initial concentration is 3.4 M. what will be the percentage remaining after a period of 24 hours?
A sample consisting of various gases contains 3.1 X 10^-6 mole fraction of radon. This gas at a total pressure of 31atm is shaken with water at 30 degree celcius.
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