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Calculate the specific rotation of a substance that is dissolved in a solvent (0.4 g/mL) and that has an observed rotation of -10 degrees as determined with a 0.5-dm cell.
Find delta E, delta H, q, and w for the change in state of 1.0 mol H2O(l) at 84 degree C to H2O(g) at 109 degree C. The heat capacity of H2O(l)= 75.3 J/molK, heat capacity of H2O(g)= 25.0 J/molK, and the heat of vaporization of H2O is 40700 J/mol ..
A 43.0 g sample of Fe metal at 90.0°C is placed into 150.0 mL of water at 22.5 °C. After equilibrium is reached the final temperature of the system is 24.5°C. What is the specific heat capacity of the metal
How many kJ of heat are needed to raise the temperature of 2kg of water from 29 degrees C
Determine the molality and molarity of a solution made by dissolving 445 g of NaBr in 2600 ml of water ?
A muon is an elementary particle with a negative charge equal to the charge of an electron and a mass approximately 200 times that of the mass of an electron.
Ethanol (C2H5OH) melts at -114 °C. The enthalpy of fusion is 5.02 kJ/mol. The specific heats of solid and liquid ethanol are 0.97 J/g-K and 2.3 J/g-K, respectively.
Neon(Ne) is a noble gas with atomic number 10 this is a odorless, colorless, inert monatomic gas under standard conditions but explain some facts about Neaon.
Draw the Lewis Structure for C3H6O (non-central atom type.) (There are five isomeric structures. Draw any three.)
What are q and w (in kJ) for the reaction of 53.0 g of Na(s) and 48.0 g of Cl2(g) to produce NaCl(s) at 1 atm and 298K
Calculate the OH- of each aqueous solution with the following H3O+ A baking soda 1.1 X 10-8 M B orange juice 2.1 X 10-4
The molecular shape of [TeF3 ]-1 is: A. tetrahedral B. square planar C. square pyramidal D. trigonal bipyramidal E.octahedral F. T-shaped G. see-saw, butterfly, or unsymmetrical tetrahedron
A roller coaster car of mass 310 kg (including passengers) travels around a horizontal curve of radius 33 m. Its speed is 16 m/s. What is the magnitude and direction of the total force exerted on the car by the track
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