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What is the theoretical pH of the buffer to be prepared from mixing 25.0 mL of 0.020 M HC2H3O2 with 25.0 mL of 0.020 M NaC2H3O2?
The design calls for reheating the liquid after the temperature has dropped to seventy degree Celsius the determine about how many stags and how many heaters are required for this process?
Dehydration of two alcohols leads to preparation of methylcyclohexene. write chemical equations for both reactions.
Put about 1/4 teaspoon of salt by itself in the tin can and set over the burner, and assure that you have good ventilation
Consider a system of two Einstein solids, with NA = 300, NB = 200, and qtotal = 100. Compute the entropy of the most likely macrostate and of the least likely macrostate. Also compute the entropy over long time scales, assuming that all microstate..
Problem- The molecular weight of methyl benzoate is 136.16 g/mol and the molecular weight of the product is 181.15 g/mol. Assume you have excess acid and you start off with 2.8 g of methyl benzoate. What is the theoretical yield in grams of methyl..
When 0.100 mol of carbpon is burned in a closed vessel with 8.00 g oxygen, how many grams of carbon dioxide can form. Which ractant is in excess, and how many grams of it remain after the reaction
A certain substance has a heat of vaporization of 58.19 kJ/mol. Explain at what Kelvin temperature will the vapor pressure be 7.50 times higher than it was at 317 K
Beaker B contains 100.0g water heated to 20C.The contents of the two are mixed. What is the final temperature of contents? Assume no heat as lost.
If 29.58 mL of 0.550 M NaOH is required to titrate the oxalic acid in the 0.554g sample to the equivalence point, what is the weight percent of oxalic acid in the mixture. Oxalic acid and NaOH react according to the equation H2C2O4 (aq) + 2 NaOH(a..
Question- The combustion of gasoline produces CO2 and H2O. Assume gasoline to be pure octane(C8H18) and calculate how many Kg of CO2 are added to the atmosphere per 1.0 Kg of octane burned.
Ballon filled with 500.0 mL of helium at atemp of 27 degrees C and 755 mmHg. As the ballon risesin the atmosphere , the temp & pressure drop. What volume will it have when it reaches an altitude where the temp is - 33 degrees celcius and the press..
The voltage for the following cell is +0.731 V. Find Kb for the organic base RNH2.Use E(SCE)= 0.241V. Pt(s)¦H2(1.00 atm)¦RNH2(0.100M), RNH3+(0.0500M)¦SCE
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