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Is the energy that an electron has in the first energy level of atom A the same as the energy that an electron would have in the first energy level of aom B? Explain please
A 397 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 639 mmHg. Calculate the moles of Ar present
In a particular experiment, 2.25 g of NH3 and 3.75 g of O2 are placed in a container and allowed to react. How many grams of NO will have been formed when all of the limiting reactant has been consumed?
If 37.3 g of CO2 is produced in the reaction of C2H2 with O2 to form CO2 and H2O, how many grams of H2O are produced in this reaction.
The sample is titrated to the phenolphthalein endpoint with 15.17 ml of a sodium hydroxide solution. What is the molar concentration of the NaOH solution
Use the Henderson-Hasselbalch equation to calculate the PH of each solution- a solution that contains 0.760% C5H5N by mass and 0.960% C5H5NHCl by mass
A sample of nitrogen gas in a 4.5-L container at a temperature of 27 C exerts a pressure of 4.1 atm. Calculate the number of moles of gas in the sample
CaC2(s) + 2H2O(l) = C2H2(g) + Ca(OH)2(aq) . If 34 g of CaC2 are consumed in this reaction, how much H2O is needed?
A buffer, consisting of H2PO4- and HPO42-, helps control the pH of physiological fluids. Many carbonated soft drinks also use this buffer system.
What is the balanced equation for copper (II) hydroxide + acetic acid (HC2H3O2)? and what is it's reaction, single, or double replacement.
calculate the volume of 6M NaOH required to react completely with 1.50g. How much of the 6M NaOH that you used was in excess of the theoretical amount
Draw the mechanism that illustrates the conversion of 2-chloro-2-methylbutane to 2-methyl-2-butyl isopropyl ether with 2-propanol as the nucleophile.
What fraction of the original reactant concentration will remain after 2.0 hours?
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