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Application of Boyle's Law. A gas occupying a volume of 725 mL at a pressure of 0.970 atm is allowed to expand at constant temperature until its pressure reaches 0.541 atm. What is its final volume?
Assuming 100% yield, what are the masses of the products that are formed by reacting 2.3g of C2H6(g) with excess O2(g) in the reaction C2H6(g) + O2(g)--->CO(g) +H2O(g).
Potassium and sodium chloride are similar in charge and they both have the same anion. When comparing sodium chloride (36 g / 100 mL at 0 oC) and potassium chloride, which has a higher solubility at 0 oC?
A 0.6745 gram sample of KHP reacts with 41.75 mL of KOH solution for complete neutralization. What is the molarity of the KOH solution? (Molecular weight of KHP = 204 g/mol. KHP has one acidic hydrogen.)
Calculate the molality of a solution prepared by dissolving 4.75g of C10H8 in 75.0 mL of C6H6 (l) of density, 0.879g/mL.
Question 1: This is a tandem MS of a tryptic peptide. The mass of the intact peptide is 1569.692 Da. a. There are two immonium ions labelled with their mass-to-charge ratio in the spectrum. Label the signals with their s ...
Imagine you are performing a calorimetry experiment using a constant-pressure calorimeter. First, you calibrate the calorimeter using the reaction of KOH with HCl (enthalpy = -56.2 kJ/mol). Then, you use the calorimeter ...
What are the major sources and emissions of air pollution in your community? What chemicals are they emitting, and how are these chemicals transported through your community (non-point sources, smokestacks, etc.)? Were y ...
What is the maximum mass in grams of aluminum chloride that could be obtained from 2.50 mol of barium chloride and excess aluminum sulfate? This is the balanced equation for the reaction: Al 2 (SO 4 ) 3 + 3BaCl 2 --> 3Ba ...
Aluminum displaces cobalt from a 0.2 M solution of cobalt(II) perchlorate. Cobalt does not displace chromium from a solution of 0.2 M chromium (III) nitrate. Aluminum metal does not displace calcium from a 0.2M solution ...
Write the balanced equation, then outline the steps necessary to determine the information requested in each of the following a) the number of moles and the mass of Mg required to react with 5.00 g of HCl and produce MgC ...
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