The pressure in a vessel that contained pure oxygen gas dropped at a rate of 0.700 atm/min as the oxygen leaked through a small hole into a vacuum. When the same vessel was filled with a fictional gas, the pressure dropped at a rate of 0.170 atm/min. What is the molecular weight of the fictional gas? Molecular Weight: amu

Q: Which is the correct Lewis structure for boron trifluoride? :F-B-F: F-B-F-E :F-B-H: :F: F=B-F :F:

A: In the Lewis structure of an molecule valence electrons are represented.

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Q: Consider the titration of 100 mL 0.1 M acetic acid with 0.1 M NaOH. Ką for acetic acid is 1.8x10 -5…

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Q: In a given 1st order reaction A -> products, the initial concentration of A is 0.40 M. What will be…

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Q: Question 6 of 22 What is [H+] in a 0.370 M solution of acrylic acid, CH₂CHCOOH (Ka = 3.16 × 10-5)?

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Q: 6-25. A mixture of gases contains 66.0 g CO2, 2.02 g of H₂, and 16.0 g of O₂. If the total pressure…

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Q: 220 200 -190.52 141.15 /134.77 -131.53 130.03 CHO O 180 160 140 120 100 fl (ppm) 77.58 -77.26 76.94…

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Q: Silver Nitrate reacts with Sodium Chloride according to the following reaction: AgNO3 (aq) + NaCl…

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Q: 1. What is the wavelength of radiation with a frequency of 1.50 x 1013 s-1?

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.