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What is the final molar concentration of every species remaining in aqueous solution of the following reaction?
2 HCl + Na2CO3 -----> 2 NaCl + H20 + CO2
If 50 g of Na2CO3 is added to 1 L of 1.00 M of HCl
discharged into a small stream saturated with oxygen from the air at 25 celcius. How many liters of this water could be contaminated to the extent of removing all the dissolved oxygen by biodegradation?
Arrange the following aqueous solutions in order of increasing freezing point. 0.10m glucose, 0.10m BaCl2, 0.20m NaCl, and 0.20m Na2SO4
a toothpaste contains 0.24% by mass sodium fluoride, NaF and 0.30% by mass of triclosan, C12H7Cl3O2. The mass of one toothpaste is 119g. How many moles of C atoms are in the toothpaste.
A box of nails contains 90 straight nails and 10 nails too bent to be used. You randomly select 10 nails from the box. What is the probability that you removed 8 straight nails and 2 bent nails? To find the probability, first derive a general expr..
What is the partial pressure of C6H6 in the vapor phase. What is the mole fraction of C6H6 in the vapor phase.
A sample of h20 with a mass of 46.0 grams has a temperature of -58 degrees celcius. how many joules of energy are necessary to heat the steam from 100 degrees celsius to 114 degrees celcius.
Write an equation, using the curved-arrow notation, for the acid-base reaction that will take place when each of the following are mixed. If no appreciable acid-base reaction takes place, because the equilibrium is unfavorable, you should so indic..
What is the certainty in the position of an electron moving at 9.00x10^6 m/s. With an uncertainty of v=0.01x10^6 m/s
When boron triflouride is added to ammonia gas, does boron triflouride act as a lewis acid or a lewis base?
How many grams of butane must be burned to provide the heat needed to melt a 85.0-g piece of ice (at its melting point) and bring the resulting water to a boil (with no vapourization)? Assume a constant pressure of 1 bar and use the following data
Suggest why Po-210 and At-211 are the isotopes of those elements with the longest half-lives.
the space shuttle orbiter utilizes the oxidation of methyl hydrazine by dinitrogen tetroxide for propulsion.4 n2h3ch3l
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