physics
I have another question for the problem below, so What is the speed of the car just before it lands safely on the other side? would it be the same 38.6 meters/sec A 10,000N car comes to a bridge during a storm and finds the bridge washed out. The 650-N driver must get to the o...
UK Taxation
OPPA is the controlling shareholder and managing director of GANGNAM Ltd, un unquoted trading company that provides support services to the oil industry OPPA disposed of the following assets during the tax year 2009-10 1. On 8 April 2009 OPPA sold five acres of land to GANGNAM...
eDX
8.8279928732e-20 you're welcome guys
eDX
If the diffusivity is observed to double when the temperature increases by 10⁰ C, what is the activation energy for diffusion?
Chemistry
I was able to find both the Mol Frac and m now. The only problem is w/w. m) (40.0gNaCl)*(1molNaCl/58.33gNaCl)=.684mol Nacl -200.0gH20*(1molH20/18.02gH20)=11.mol H20 -200g= .2L ** .684mol NaCl/.2LH20= m=3.42 Mol Frac) .864molNaCl/(.864molNaCl+11.02)= .580 w/w .684/11.02= 3.63
Chemistry
Dr.Bob, Could you please show the work for w/w and mol frac. I continue to get a completely bizarre number. The only one that I am getting correct is the molal part.
Chemistry
A solution contains 40.0 g of sodium chloride and 200.0 g of water. Calculate the NaCl concentration as a a) mass percentage, b) molality, c) mole fraction. I have trouble finding mole fraction. I believe I've got the other two, but I'm not 100% sure.
Chemistry
Calculate the osmotic pressure at 22 °C of a 0.25 M solution of a) dextrose, b) magnesium chloride.
Math
Is this correct? Mode 7, median 7, range 15
Math
What is the mode, median, range for: 2,2,4,4,7,7,7,11,12,17
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