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Mendeleev is considered the father of the periodic table. He was so advanced that he left space for elements not discovered. Explain Mendeleev's logic in leaving blank spaces then describe how the modern periodic table came to be. (YOUR ANSWER MUST BE COMPLETE AND THOROUGH FOR FULL CREDIT)
For a particular reaction, delta H = -32 kJ and delta S = -90. J/K. Assume that H and S do not vary with temperature. (a)[Under standard conditions] At what temperature will the reaction have delta G = 0
Find the theoretical yield and the percent yield if the mass of aluminum is 0.509 and the mass of alum synthesized is 4.99 g
Explain what is the empirical formula of the compound if you find that 0.105 g of the compound gives 0.257 g of CO2 and 0.0350 g of H2O when burned completely.
For the reaction Na2CO3(aq)+2HCl(aq)= 2NaCl(aq)+CO2(g)+H2O(l), suppose you have 100 mL of 3.80M Na2CO3. How many milliliters of 0.920 M HCl would you have to add to the sodium to consume the Na2CO3 completely
Calculate the equilibrium pressure of the H2O vapour at both 0oC and 25 oC. The value of ?H is 522.0kj/mol, why may be assumed constant over the temperature range of interest.
Starting with Benzyl alcohol (PhCH2OH), 1-Proponal and any other organic or inorganic reagents outline a synthesis of 2-methyl-3-phenyl-2propen
Find out the required pressure to compress 180 liters of N at 1.0 atm into a tank whose volume is 34 liters.
a few questions regarding the synthesis of p-bromoaniline labreally bother me and would like someone to clear them up.1
The item itself serves as the cathode, at which the Au3+ ions are reduced to Au(s). A piece of solid gold is used as the anode and is also connected to the power source, thus completing the circuit.
In a Diels-Alder reaction between 1mL (12mmol) of cyclopentadiene and 1.393 g (12mmol) of maleic acid, How do you calculate the Theoretical Yield
Which of the following statements about enzymes is not true? A. Enzymes are catalysts. B. Almost all enzymes are proteins.
For a reaction a plot of ln k (rate constant) vs 1/T gave a line with y-intercept of 5.2. what is the value of the frequency factor for this reaction
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