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What is the enthalpy change when 100g of water at 50degrees celsius turns into ice at -30 degrees celsius? Specific heat: Ice= 2.09 J/g * K, Water= 4.18 J/g * K, Steam= 1.84 J/g * K Water ?Hfusion= 6.01 KJ/mol and ?Hvaporization= 40.67 KJ/mol
For chemical reactions involving ideal gases, the equilibrium constant K can be expressed either in terms of the concentrations of the gases (in M) or as a function of the partial pressures of the gases
How many grams of nitrogen dioxide (NO2) are required to produce 260 grams of nitrogen monoxide, NO?
What is the "mass per volume" percent sodium hypochlorite content of your household bleach product?
Make a flow chart on how a mixture of phenol, benzoic acid, p-nitroaniline and anthracene can be seperated by extraction
Calculate the new freezing point for a 0.61 m solution of CCl4 in benzene. 2) Calculate the increase in the boiling point, Î"T, for a 1.94 m solution of sucrose (dissolves as a molecule) in water
if the methane contained in 3.00 of a saturated solution at 25 was extracted and placed under stp conditions what
What will happen when a HCl (aq) solution is added to a Na2CO3 (aq) solution? Explain and give the molecular and net ionic equations for the reaction.
In the NMR there is a peak at: singlet(1 Hydrogen at 9.5), triplet( 2 hydrogens at 2.5), quintet(2 hydrogens at 2), quintet or sextet( not clear)(4 hydrogens at 1.3), and triplet ( 3 hydrogens at 1).
Draw the VSEPR diagram and classify the shape of the molecule for F2O
Consider the titration of a 27.0 mL sample of 0.180 M CH3NH2 with 0.150 M HBr . Determine each of the following: a) Initial pH. b) volume of added acid required to reach equivalence point
at 25 degrees of nh3 molar mass 17 grams effuses at the rate of .50 mole per minute. under the same conditions which of
The atmosphere becomes colder at higher elevation. As an average the standard atmospheric absolute temperature can be expressed as Tatm = 288 - 6.5 × 10?3 z, where z is the elevation in meters.
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