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An alpha particle (mass = 6.6 multiplied by 10-24 g) emitted by radium travels at 3.2 multiplied by 107 ± 0.1 multiplied by 107 mi/h. What is its de Broglie wavelength (in meters)?
In an actual experiment, 100 g each of copper and nitric acid are used and 70g of copper(II) nitrate is obtained. In this experiment, what is a) the limiting reactant
When you are drawing Lewis structures, why are elements in row 3 capable of having an expanded octet (expanded valence shell), while the elements in row 2 are not capable of this
total of 2.00 moles of a compound is allowed to react in a foam coffee cup that contains 122 gm of water. The reaction caused the temperature of the water to rise from 21.0 to 24.7
In a separate experiment using a very large reaction vessel with a movable piston, 6.00 moles of CO2 reacts completely with 3.00 moles of nitrogen gas according to the following equation at 25 C and with a constant external pressure of 2.00 atm
Give two reasons why a 100% yield is not obtained in actual chemical manufacturing processes.
If 30.0mL of .150M calcium chloride is added to 15.0 mL of .100 M silver nitrate what will be the final concentration of all ions the remain in the solution?
The crystal structure of an element X can be described as follows: X atoms form a face-centred cubic lattice with an edge length of 356.7 pm. In addition, there are X atoms occupying every other tetrahedral site in the face-centred cubic lattice.
Why when Shutting Down Scanning Electron Microscope do you Turn the magnification to its maximum
Converting Grams and Moles, To do this assignment, use your calculator to do the calculations required. Then invert the calculator to read the message word. Insert the message word into the appropriate space in the statement
How much heat is required to change 25.0 g of liquid Ethanol that is at a temperature of 158.7 K to a gas at 351.5 K
The pressure in a sealed flask is 2.3 atm at 30. degrees Celcius. What would be the temperature of the flask (in degrees Celcius) if the pressure inside the flask was decreased to 1.1 atm. (Assume that the volume of the flask does not change with ..
What is the final dilution obtained after each dilution series shown below? Express each answer in exponential numbers.
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