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For example, sulfuric acid (H 2 SO 4) is a diprotic acid. Since only 0.5 mol of H 2 SO 4 are needed to neutralize 1 mol of OH −, the equivalence factor is: f eq (H 2 SO 4) = 0.5. If the concentration of a sulfuric acid solution is c(H 2 SO 4) = 1 mol/L, then its normality is 2 N. It can also be called a "2 normal" solution.
Making a saline water solution by dissolving table salt in water.The salt is the solute and the water the solvent. In chemistry, a solution is defined by IUPAC as "A liquid or solid phase containing more than one substance, when for convenience one (or more) substance, which is called the solvent, is treated differently from the other substances, which are called solutes.
For example, if there are 10 grams of salt (the solute) dissolved in 1 litre of water (the solvent), this solution has a certain salt concentration . If one adds 1 litre of water to this solution, the salt concentration is reduced. The diluted solution still contains 10 grams of salt (0.171 moles of NaCl).
Co + H 2 SO 4 + 7 H 2 O → CoSO 4 (H 2 O) 7 + H 2 CoO + H 2 SO 4 + 6 H 2 O → CoSO 4 (H 2 O) 7. The heptahydrate is only stable at humidity >70% at room temperature, otherwise it converts to the hexahydrate. [2] The hexahydrate converts to the monohydrate and the anhydrous forms at 100 and 250 °C, respectively. [1] CoSO 4 (H 2 O) 7 → CoSO ...
No. 1 seed Oregon is the No. 2 favorite to win it all but is actually a slight underdog in its quarterfinal game. The Ducks are 1.5-point underdogs to No. 8 Ohio State in the Rose Bowl.
From November 2011 to December 2012, if you bought shares in companies when Gaurdie E. Banister Jr. joined the board, and sold them when he left, you would have a 0.3 percent return on your investment, compared to a 17.3 percent return from the S&P 500.
Binary cobalt sulfide minerals include the cattierite (CoS 2) and linnaeite (Co 3 S 4). CoS 2 (see image in table) is isostructural with iron pyrite, featuring disulfide groups, i.e. Co 2+ S 2 2−. Linnaeite, also rare, adopts the spinel motif. [2] The Co 9 S 8 compound is known as a very rare cobaltpentlandite (the Co analogue of pentlandite ...
These target all of the usual suspects: puffy eyes, under-eye bags, dark circles, signs of aging and dryness, all thanks to ingredients like sea moss, hydrolyzed vegetable protein and hyaluronic acid.