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Problem- Which reaction will be spontaneous at 100 degrees Celcius? And please explain why the answer is correct (show math).
1) DeltaH = 25 kJ/mol, delta S= 50 J/mol K
2) DeltaH = -5 kJ/mol, delta S= 50 J/mol K
3) DeltaH = 25 kJ/mol, delta S= 25 J/mol K
4) DeltaH = -5 kJ/mol, delta S= -100 J/mol K
The solubility of barium carbonate,BaCO3, is .0100 g/L . Its molar mass is 197.6 . What is the Ksp of barium carbonate?
what is the formula for solving the following problem? the specific heat of ti is .523 jgcelcius. what is the final
Using the data collected for part c on your data sheet and assuming the density of the vinegar is 1.00g/mL, 1) calculate the molar concentration of acetic acid (CH3COOH) in the vinegar sample using the average volume of NaOH.
from the number of moles of H2O(.1331 mol) and CO2(.27 mol) that were produced what are the total number of moles of C atoms?
What mass of O2 does the tank contain. kg (b) What volume would the gas occupy at STP? L (c) At what temperature would the pressure in the tank equal 150. atm
Calculate the boiling point when 752 grams of ethylene glycol, C2H6O2, is dissolved in 3 kilograms of water.
question a chem 216 student titrated 5.15 g of an unknown weak acid with 0.92m of naoh. equivalence point was found to
Compute the energy of the violet light emitted by a hydrogen atom with a wavelength of 410.1 nm
Air is about 78.% nitrogen molecules and 21.0% oxygen molecules. Several other gases make up the remaining 1% of air molecules.
A 0.3146-g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution required 41.80 mL of 0.08765 M AgNO3(aq) to precipitate the Cl-(aq) and Br-(aq) as AgCl(s) and AgBr(s). Calculate the mass percentages of NaCl(s) a..
Question- Enough of a monoprotic acid is dissolved in water to produce a 0.0103 M. The PH of the resulting solution is 2.45. Calculate the pKa for the acid.
The diameter of a molecule is approximately 1x10^(-18) mets. If 1 nm is equal to 10^(-9)m and 10 Ångstroms, what is the diameter of the nucleus in Ångstroms
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