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Protons, Neutrons in atoms' nucleus and electron in Shells
How do you determine the number of protons and neutrons in an atoms' nucleus and the number of electrons in its first and second shells?
If 88 J of heat are added to a pure gold coin with a mass of 20 g, what is its temperature change? Specific heat capacity of gold is 0.128 J/g'C
Acrylonitrile, C3H3N (53.07 g/mol), is used in the synthesis of a variety of plastics. What mass of acrylonitrile can be produced from a mixtur.
If the solution is 40.0% K2CO3 by mass, what is the predicted freezing point of this solution in °C, assuming full ionization.
If the methane contained in 3.00 L of a saturated solution at 25 was extracted and placed under STP conditions, what volume would it occupy.
A flask contains 0.180 of liquid bromine br2, . Determine the number of bromine molecules present in the flask.
Calculate the average absorbance and use this value for an absorbance point on your graph. Use the printed graph from above, find the average Absorbance of the unknown on the y-axis
How does one predict the regiochemistry of the products of aromatic reactions like nitration? What factors are responsible for the product ratios seen in such reactions?
When calculating the density of your regularly shaped object, which measurement will limit your final result?
Determine how many moles of Trisodium phosphate would be required to react with 4.0mol of Silver Nitrate?
Kp for the reaction of SO2(g) with O2 to produce SO3(g) is 3 × 1024 . Calculate Kc for this equilibrium at 25ºC. (The relevant reaction is 2SO2(g) + O2(g) 2SO3(g).)
The products of the fastest inactivation process are as explain the mechanism is accountable for the making of the products.
It is given that the v.p. of water =233.7 mm Hg.at 70 degree Celsius then calculate the vapor pressure? express your answer in mm Hg ?
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