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1. 7.89 g of a substance X contain 6.28 x 1022 molecules of X. Calculate the molar mass of X in g/mol.
2. Ammonia can be made by reacting calcium cyanamide (CaCN2) with water as shown:
CaCN2 + 3 H2O => CaCO3 + 2 NH3.
How many grams of calcium cyanamide are required to react with 417.8 g of water
what Spartan is doing when it performs a geometry optimization (hint: energy minimization) of a molecule and what kinds of structural changes can result.
what starting material are needed to prepare the following compound using malonic ester synthesis
Place the following compounds in order of increasing strength of intermolecular forces. CH4, CH3CH2CH3, CH3CH3
salicylic acid reacts with methanol to produce oil of wintergreen and water. If water is added to the solution, a precipitate is formed. identify the precipitate and explain why it is formed.
The atmospheric pressure in La Grande (683 atmospheric pressure) is significantly lower than that of Portland
Liquid dimethyl disulfide (CH3SSCH3) flows through a pipe with a mass flow rate of 29.0 g/s. Given that the density of dimethyl disulfide
Calculate the kinetic energy of 2 kg of helium gas at 25 C. If this energy could be captured and used to accelerate a 1400.0 kg automobile, how fast would the car travel on a flat surface (ignoring friction)
Why is it important to make sure all of your unknown has vaporized? Why is it important to put a pinhole in the aluminum "cap"?
a particle moving 30,816 km/hr has a wavelength of 725 nm. What is the mass of the particle?
A gas mixture with a total pressure of 765 contains each of the following gases at the indicated partial pressures: , 118 ; , 229 ; and , 187 . The mixture also contains helium gas. What is the partial pressure of helium gas.
If the O2 was the excess reagent, 8.3 mol of H2S were consumed, and 137.1g of water were collected after the reaction has gone to complain, what is the percent yield of the reaction?
provide reaction mechanisms for the formation of each of these byproducts and specify whether the mechanisms you write are SN1, SN2, E1, E2, or none of these. explain why you would expect bisulfate to be a good leaving group for substitution or eli..
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