What law fits the following situations? Solve each problem. 7-8. A gas has a volume of 344 mL at a pressure of 90 kPa, if pressure is raised to 140 kPa, what is new volume? 9-10. A sample of a gas measures 2.5 liters at 298 K. What will be the volume when the emperature is changed to 345 K?

Q: Predict whether the entropy change of the system in each of the following is positive or negative.…

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Q: a) Draw in all the hydrogens. i) b) Write the molecular formula. ii) @ = CI -CI

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Q: The reaction Crienly(aq) + 6 NHylaq)- Cr(NH₂l(aq) 3endag) where en represents ethylenediamine, is…

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Q: What's the major product in the following reaction? 2 HCI ? 1 2 CI CI 3 5 CI

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Q: 4. Consider the following equations: 4 PCI; 1. P₁ + 6 Cl₂ → P₁ +50₂ → 2. P₂010 AH₁ = -1226 kJ AH₂ =…

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Q: Predict whether the entropy change of the system in each of the following is positive or negative.…

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Q: erentiate between El and E2 reactions by giving one example of each.

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Q: If the [H3O+] concentration is 8.3x10-9, what is the [OH-] concentration?

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Q: A 0.0250 M Ca(X)2 has a pH of 8.049. Ca(X)2 is composed of a Ca2+ cation and an unknown anion X-,…

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Q: 6. How many oxygen atoms are there in 2.5 g of oxygen gas? a. 2.4 x 1022 b. 4.7 x 1022 c. 9.4 x 1022…

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Q: In basic solution, H2O2 oxidizes Cr³+ to CrO4²- and is reduced to OH. Write the balanced net ionic…

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Q: Draw the mechanism of acetylation reaction in aspirin.

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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.