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Given: Cooling 204.5 g of water from 25 C to the final temp = melting of 40.9 g ice + raising the temp of 40.9 g to final temp.
Given: that H (fusion) of water = 6.0 kJ/mol. Determine the theoretical final temperature of water left in the calorimeter when the system reaches equalibrium.
calculate approximately the heat released when you are given a chemical equation asnbsp 2-methyl-1-propene ch32c ch2
Problem- A 25.7mL volume prepared Na2H2Y solution titrates 25.0 mL standard .0107 MCa 2+ solution to the eriochrome black T endpoint. What is the molar concentration of the Na2H2Y solution
Draw a resononace structure for NO3
30. According to kinetic-molecular theory, in which of the following gases will the root-mean-square speed of the molecules be the highest at 200 °C?
an antacid, contains CaCO3. If Tums is added to 20.0mL of 0.400 M HCl solution, how many grams of CO2 gas are produced?
Use given Equation to find the chemical formula and chemical name for the R-113, R-114, and R-123 refrigerants:
Depict the kinetic and thermodynamic enolates formed when 3- methyl butan-2-one is treated with a base
Which one of the following pairs of gases contains the same number of molecules (a) 16 g of O2 and 14 g of N2 (b) 8 g of O2 and 22 g of CO2 (c) 28 g of N2 and 22 g of CO2 (d) 32 g of O2 and 32 g of N2
While a solution containing 1.4g of Ba(NO3)2 as well as 2.4g of NH2SO3H is boiled, a precipitate forms. This precipitate may be Ba(NH2SO3)2, BaSO4, or Ba(NH2)2. Determine these products in the reactions whose equations you balanced in the first qu..
Creatine is a by-product of muscle metabolism, and creatinine levels in the body are known to be a fairly realiable indicator of kidney function.
The pH of the solution at equivalence was 8.4. At 9.3 mL the pH was 5.3. What is the Ka for this acid? Please show all the work
Calculate the hydronium-ion concentration and the pH of a 0.0059 M solution of chloroacetic acid. Ka is 1.3 10-3.
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