Calculate the de broglie wavelength of an electron
Calculate the de Broglie wavelength of an electron accelerated from rest through a potential difference of (a) 100 V, (b) 1.0 kV, (c) 100 kV.
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How much heat is gained by Nickel when 500g of Nickel is warmed from 22.4 deg C to 58.4 deg C? (The specific heat of Nickel is 0.444 J/(g dot Celcius)
When 5.0 g of an unknown substance is dissolved in 100.0 g of water, the freezing point of the solution decreases by 1.5 degrees Celsius.
A 4.0 g sample of Colorado oil shaleis burned in a bomb calorimeter, which causes the temperature ofthe calorimeter to increase by 5.0 C. The calorimetercontains 1.00 kg of water (CH2O = 4.184 J/g C) and the heatcapacity of the empty calorimeter i
Explain how a sodium atom might end up with the exact same electron configuration as a neon atom?Nettie's answer: By losing or gaining electrons?
What is the wavelength of light in centimeters having a frequencyof 1.5x10^18 s^-1? (The speed of light is 3.00 x 10^8 m/s)
A student determines the molar mass of acetone CH3COCH3, by themethod used in this experiment. She found that theequilibrium temperature of a mixture of ice and water was 1.0degrees C on her thermometer.
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A 1.0000g sample of an unknown mixture containingCaCl2 is mixed with 1.0000g Na2CO3(excess) to form 0.4352g of CaCO3 ppt.How many moles of Ca were in the unknown mixture?
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