A 7.84 g sample of MgCO3∙xH2O is heated in order to remove all of the water of hydration, after which 3.79 g of the anhydrous sample remains. Determine the value of x, the number of waters of hydration in each molecule of the hydrated salt.

Q: Which molecule is chiral? SH SH OA A as B J C H D NH₂

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Q: How many sigma and pi bonds are present in the following molecule? H₂C sigma: pi: CH HC CH3

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Q: 1. Why are bubbles an issue when using the Titrette?

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Q: CI H₂C C=C CI CH₂ Cis-2,3-dichlorobutene

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.