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A compound is found to contain 49.5% carbon, 5.19% hydrogen, 16.5% oxygen, and 28.9% nitrogen. Its molecular mass is 194.2 g/mol. What is its empirical formula? What is its molecular formula? Explain what each of these formulas tells us about the molecule.
balance the following reaction. which compound is the oxidizing agent in the reaction below? which is reducing agent?
find the value of pressure.1. a gas in a sealed container has a pressure of 111 kpa at a temperature of 50.0degc. if
If 0.214 mol of argon gas occupies a volume of 652 mL at a particular temperature and pressure, what volume would 0.375 mol of argon occupy under the same conditions?
Important information about Heat of Reaction, The combustion of butane produces heat according to the equation 2C4H10(g) + 13O2(g) --> 8CO2(g) + 10H2O(l) deltaHrxn= -5314kJ
A sample of chromium (III) oxide, Cr2O3, contains 0.599 g of chromium. What mass of oxygen is present
The difference between PCC and chromic anhydride. are they the same reagents? how are they different. what is the mechanism like.
the maximum kinetic energy of the emitted photoelectrons and (b) the speed of photoelectrons having this maximum kinetic energy.
explain the difference or similarity in conductivity of k2c2o4 and cacl2. do the same thing for h2c2o4 and
Every student recorded the temperature change and computed the enthalpy of neutralization. Classify the student who observes a temperature change that will be different from that observed by the other two chemists. Explain why is the temperature d..
A solution is 21.0% ethylene glycol (C2H6O2) solution in water with density of 1.02g/mL. WHat is the molarity?
The specific heat of water increases at a constant rate. The specific heats of NaOH, HCl, and the product of the reaction are the same as that of water.
a sample of nitromethane is sealed in a 15.0-l flask with oxygen gas in the stoichiometric ratio indicated in the
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