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Three pure compounds are formed when 1.00 g samples of element X combine with, respectively, 0.472 g, 0.315g , and 0.944 g of element Z . The first compound has the formula X2Z3. What is the empirical formula for the second and third compounds.
the summit of Mt. Humphreys, the highest point in Arizona, is 12,600 ft. How many meters is this
Derive the rate law, and show that this reaction may follow the first-order equation at high pressures and the second-order equation at low pressures.
3.5 grams of salicylic acid reacts with an excess amount of acetic anhydride. What is the theoretical yield
that forms when gaseous nitrogen dioxide pollutant reacts with gaseous oxygen and liquid water to form aqueous nitric acid. Write a balanced chemical equation for this reaction.
The convention of arbitrarily assigning a zero enthalpy value to all the most stable elements in the standards state and (usually) 298 K is a convenient way of dealing with the enthalpy changes of chemical processes.
how does the collision theory account for the dependance of rate on the concentration of the
What is the pressure in the tank in atmpshere at a temp. of 33 degrees celcius after the CO2 (r) has been coverted to gas?
When 25.0 g of Zn reacts, how many L of H2 gas are formed at 25 °C and a pressure of 854 mmHg?
Rate Law for Proposed Mechanism, Consider the reaction 2NO(g) + O2 ---> 2NO2 (g). The following mechanism has been proposed to explain the experimental rate law
The alkaline earth metal beryllium, Be, is very small and forms covalent compounds instead of ionic compounds. Knowing this what type of solids would BeFCl and BeCl2 form and which would have the higher melting point
Explain What is the concentration of the HCl, A 25.00 mL sample of HCl of unknown concentration is completely neutralized with 25.00 mL
What are the pH values if you take into account that the 8.00 mL of 0.100 M acid was first diluted with 100 mL water?
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