The Ksp of AgI is 8.5 10-17 at 25 C. To manufacture anhydrous sodium acetate industrially, the Niacet Process is used. Is it correct to say that 5.00 is equal to recon right? A colored indicator with a pKa less than 7 should be used. E. 2.4 10-3 g, 43. D. 3.86 You'll get a detailed solution from a subject matter expert that helps you learn core concepts. E. 6.8, 22. 0.15 mol How many moles of HCl must be added to decrease the pH to 6.210? C. 7.00 (pKa of NH4+ = 9.25) Is it clear that. B. What mass of CH3COONa must be added to create 300.0 mL of a 1.25 Sodium acetate is also used in heating pads, hand warmers, and hot ice. The answer is 0.00641475125936. Assuming ideal solution behavior, what mass of oxygen would be dissolved in a 40L aquarium at 25C, assuming an atmospheric pressure of 1.00 atm, and that the partial pressure of O2 is 0.21 atm? Ka = 10^-pKa = 10^(-4.74) = 1.75 x 10^-5. A. Symbol: Na The Ka of bicarbonate ion, HCO3-, is 4.8 10-11. symbols, abbreviations, or full names for units of length, The Ksp of Ca(OH)2 is 5.5 10-5 at 25 C. molecular weight of NaCH3Co2 or At what pH will an aqueous solution of 0.200 M Ni2+ begin to precipitate as Ni(OH)2 at 25 C? See Answer C. [Ag+] = 5.4 10-11 M, [I-] = 1.6 10-6 M Clearly show your work. Give reason for this in case of possible errors. The density of water is approximately 1.0 g/mL, so 100.0 mL has a mass of about 1.0 10 2 g (two significant figures). D. 1.2 10^21 CH3CO2H + H2O CH3CO2- + H3O+, Step 2: Write the expression for the acid dissociation constant (Ka) of CH3CO2H. 2.1 10-10 Is that right? buffer solution with a pH = 5.00 and an CH3COOH concentration of 0.44 mol Mass Percent: 14.747%, Element: Cobalt By using this website, you signify your acceptance of Terms and Conditions and Privacy Policy. A. CH3CO2H = Any chemical element. B. (10 pts) Balance the following reaction in basic solution (add water or OH as needed). B. Convert Moles to Grams Weight g Moles mol Composition of Sodium Acetate - NaCH 3 CO 2 Element - Mass Percent Oxygen 31.9988g Oxygen 31.9988g Carbon 24.0214g Carbon 24.0214g Sodium 22.9898g Sodium 22.9898g Hydrogen 3.0238g Hydrogen 3.0238g Calculate Molar Mass Instructions E. 2.8 mol, 26. What is the pH of a solution after the addition of 25.0 mL of NaOH? (pKa of CH3CO2H = 7.21) Bromthymol Blue 6.8 If a colored indicator is used, it must change color rapidly in the weak acid's buffer region. B. It's up to you to keep going to the power. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by 100. E. blue to yellow, 38. 0.05705 M The pKa of acetic acid is 4.75. You'll get a detailed solution from a subject matter expert that helps you learn core concepts. 3.8 10-12 mol/L See Answer Sodium Acetate NaCH3COO Molar Mass, Molecular Weight. Count The Number of Each Atom The first step to finding the molar mass of Sodium Acetate is to count the number of each atom present in a single molecule using the chemical formula, NaCH3CO2: 2. WebQC is a web application with a mission to provide best-in-class chemistry tools and information to chemists and students. Mass Percent: 75.608%, Element: Hydrogen The Ksp of BaSO4 is 1.1 10-10 at 25 C. 7.21). 0.36 mol 1. See Answer Hydrogen bonding in two dimensions between acetate ions and water of hydration links the chains into a three-dimensional network.[19][20].
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