Chemistry
To treat a burn on your hand, you decide to place an ice cube on the burned skin. The mass of the ice cube is 16.0 g, and its initial temperature is -11.4 °C. The water resulting from the melted ice reaches the temperature of your skin, 31.0 °C. How much heat is absorb...
Chemistry
On another planet, the isotopes of titanium have the following natural abundances. Isotope 46Ti Abundance 70.900% Mass(amu) 45.95263 Isotope 48Ti Abundance 10.000% Mass(amu) 47.94795 Isotope 50Ti Abundance 19.100% Mass(amu) 49.94479 What is the average atomic mass of titanium ...
Math
The Johnstown inclined plane in johnstown, pennsylvania, is a cable car that transports people up and down the side of a hill. during the cable car's climb, you move about 17 feet upward for every 25 feet you move forward. at the top of the incline, the horizontal distance...
Chemistry
For the energy is it around 3.647x10^-19J? And how did you know that c=3*10^8m/s?
Chemistry
Is F=5.55*10^14Hz?
Chemistry Someone Check for me
What did you use for the freq?
Chemistry
What is the freq? You got C=2x10^8m/s but you don't have the freq.
Chemistry
Suppose that absorbances of several solutions were measured at 545 nm. What is the frequency of this wavelength? What is the energy of this wavelength? (h=6.626 times 10^-34J*S)
Chemistry
Ok. I thought 100mL/25mL=4mL. Thanks
Chemistry Need Some to Check
But when you times (100mL/25mL) you get 4mL. Then you times 4mL times 15.8 mg/L and it doesn't cancel out the mL.
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