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Dextrose hydrate is stable between — s.°3 C and 50° C; its solubility has a high temperature coefficient. 50° C. Above this temperature anhydrous dextrose is the solid phase. Its tempera-ture coefficient is relatively small. Below the transition temperature the anhydrotis. Page. 1. INTRODUCTORY. is carried out.
Dextrose hydrate is stable between — s.°3 C and 50° C; its solubility has a high temperature coefficient. 50° C. Above this temperature anhydrous dextrose is the solid phase. Its tempera-ture coefficient is relatively small. Below the transition temperature the anhydrotis. Page. 1. INTRODUCTORY. is carried out.
All compounds that contain the ammonium ion (NH4 +), alkali metal cations (Li+, Na+, K+, Rb+, Cs+, Fr+), nitrate ion (NO3 -), and acetate ion (CH3COO- or C2H3O2 -) are always soluble. All chlorides, bromides, and iodides are soluble EXCEPT those of silver, lead(II), and mercury(I).
Water can dissolve more substances than any other compound because of its polar nature. The water molecules because of their composition – hydrogen with a positive charge on one side and oxygen with a negative charge on another, are able to attract other molecules easily.
Classify each of the substances as being soluble or insoluble in water. zinc carbonate = . i. Mg3(PO4)2 = j. KOH = k. NH4OH = l. Hg2SO4 = m. PbI2 = 2. Identify the two new compounds which form if the solutions, as suggested by the following table, were mixed. CIRCLE the names of the compounds which would precipitate from the solutions. 3.
Use your solubility curve graphs provided to answer the following questions. 1. What are the customary units of solubility on solubility curves? Degress Celsius and grams of solute/100g of water. A measure of how much solute can dissolve in a given amount of solvent. 3.
For questions 1 – 4 an amount of solute is given, and a temperature is stated. If all of the solute could be dissolved in 100 g of water at the given temperature, would the resulting solution be unsaturated, saturated, or supersaturated? For questions 5 – 8 a solute and temperature are given.
