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Calculate the pH of a solution formed by mixing 196.0 mL of 0.100 M NaF and 198.0 mL of 0.025 M HCl.
What mass of Sucrose(C12H22O11) should be combined with 456g of water to make a solution with an osmotic pressure of 8.05atm at 280K
Calcium Oxide reacts with water in a combustion reaction to producee calcium hydroxide: CaO(s) + H2O(l)----> Ca(OH)2(s)
Use Henderson-Hassalbach equation. The pKa of Tris-HCl is 8.1. After you have added 1 N HCl to adjust the pH of the Tris solution to 8.1, what is the ratio (in mmols) of Tris to Tris-HCl in the resulting buffer solution?
the molar mass is not identical, the molar mass of Br2 is only 159.80 g/mol compared to 162.35 g/mol for ICl F: ICl is polar while Br2 is nonpolar
Calcium hydride (CaH_2) reacts with water to form hydrogen gas. How many grams of CaH_2 are needed to generate 55.0 L of H_2 gas at a pressure of 0.995 atm and a temperature of 32 degrees Celsius
The diluted solution is then placed in a spray bottle for application on the desired surfaces. How many moles of luminol are present in 2.00 L of the diluted spray
A gaseous hydrocarbon fuel is burned in 26.84% excess oxygen and the exhaust gas analyzed. On a dry basis, the ratio of carbon dioxide to carbon monoxide to oxygen in the exhaust gas
A vinegar titration was completed using a pH meter as an indicator of the changing pH. A 25.00 sample of diluted vinegar
The compound [Fe(CO)4(PMe3) could adopt a trigonal bipyramidal geometry with the phosphine in either an axial or an equatorial position. (a) Indicate the point group of the molecule
Consider the reaction Cu2S + O2 → 2Cu + SO2. If 55.0 grams of Cu2S is heated in excess O2, what is the mass of Cu that can be produced?
Nitrogen dioxide is obtained in a cylinder, but exists in equilibrium with dinitrogen tetrooxide. A 5.00g sample of this mixture is transferred to a 0.5L flask at 298K.
What is the maximum amount of Cl2 that can be produced by this reaction. Calculate the amount of excess reactant.
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