Examples of molar solubility in the following topics:
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- Molar solubility is the number of moles of a solute that can be dissolved per liter of solution before the solution becomes saturated.
- The relation between the molar solubility and the solubility product means that one can be used to find the other.
- What is the molar solubility?
- Compare their molar solubilities in water at 25 °C.
- Calculate the molar solubility of a compound in water and the relative molar solubility of compounds
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- Adding a common ion decreases the solubility of a solute, causing it to precipitate.
- With such a small solubility product for CaF2, you can predict its solubility << 0.10 moles per liter.
- If our prediction is valid, we can simplify the solubility-product equation:
- Lithium hydroxide forms less-soluble lithium carbonate, which precipitates because of the common ion effect.
- Calculate the molar solubility of a compound in solution containing a common ion.
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- Formation of a complex ion between a metal cation and a ligand can increase salt solubility.
- In this case, square brackets are used to indicate concentration in mol/liter or molarity (M).
- In this equation, the measured absorbance (A) is related to the molar absorptivity constant (ε), the path length (b), and the molar concentration (c) of the absorbing species.
- Formation of a chemical complex has an effect on solubility.
- This will increase the solubility of AgCl in solution.
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- In chemistry, molar concentration, or molarity, is defined as moles of solute per total liters of solution.
- The SI unit for molarity is is mol/m3; however, you will almost always encounter molarity with the units of mol/L.
- This video demonstrates practice problems with molarity, calculating the moles and liters to find the molar concentration.
- Use molarity to convert between mass and volume in a solution.
- This video looks at how to use molarity as a conversion factor.
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- To find the molar mass of a mixture of gases, you need to take into account the molar mass of each gas in the mixture, as well as their relative proportion.
- The average molar mass of a mixture of gases is equal to the sum of the mole fractions of each gas, multiplied by their respective molar masses:
- where m is the mass of the gas, and M is the molar mass.
- Finally, putting the equation in terms of molar mass, we have:
- What is the molar mass of the gas?
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- The degree of solubility ranges widely depending on the substances, from infinitely soluble (fully miscible), such as ethanol in water, to poorly soluble, such as silver chloride in water.
- The solubility of gases displays the opposite relationship with temperature; that is, as temperature increases, gas solubility tends to decrease.
- In contrast, a non-polar solute such as naphthalene is insoluble in water, moderately soluble in methanol, and highly soluble in benzene.
- The solubility chart shows the solubility of many salts.
- The solubilities of salts formed from cations on the left and anions on the top are designated as: soluble (S), insoluble (I), or slightly soluble (sS).
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- Mass-to-mole conversions can be facilitated by employing the molar mass as a conversion ratio.
- The compound's molar mass is necessary when converting from grams to moles.
- For a single element, the molar mass is equivalent to its atomic weight multiplied by the molar mass constant (1 g/mol).
- For a compound, the molar mass is the sum of the atomic weights of each element in the compound multiplied by the molar mass constant.
- The molar mass of water is 18 g/mol.
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- Molar ratios, or conversion factors, identify the number of moles of each reactant needed to form a certain number of moles of each product.
- From this reaction equation, it is possible to deduce the following molar ratios:
- These molar ratios can also be expressed as fractions.
- These molar ratios will be very important for quantitative chemistry calculations that will be discussed in later concepts.
- Calculate the molar ratio between two substances given their balanced reaction
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- The molar mass of a particular substance is the mass of one mole of that substance.
- The characteristic molar mass of an element is simply the atomic mass in g/mol.
- However, molar mass can also be calculated by multiplying the atomic mass in amu by the molar mass constant (1 g/mol).
- The molar mass of NaCl is 58.44 g/mol.
- This video shows how to calculate the molar mass for several compounds using their chemical formulas.
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- Cholesterol is only slightly soluble in water; it can dissolve and travel in the water-based bloodstream at exceedingly small concentrations.
- Since cholesterol is insoluble in blood, it is transported in the circulatory system within lipoproteins , which are complex discoidal particles that have an exterior composed of amphiphilic proteins and lipids whose outward-facing surfaces are water-soluble and inward-facing surfaces are lipid-soluble; triglycerides and cholesterol esters are carried internally.
- In addition to providing a soluble means for transporting cholesterol through the blood, lipoproteins have cell-targeting signals that direct the lipids they carry to certain tissues.
- Reference ranges for blood tests, showing usual, as well as optimal, levels of HDL, LDL and total cholesterol in mass and molar concentrations, is found in orange color at right, that is, among the blood constituents with the highest concentration.