WebAll steps. Final answer. Step 1/3. The reduction half-reaction in the plating of solid silver from Ag + in solution is as follows: Ag A + ( aq) + e A − → Ag ( s) Hence, 1 mole of electrons is needed to plate 1 mole of silver. Mass of silver to be plated = 19 g. Molar mass of silver, Ag = 107.8682 g/mol. Hence, moles of silver to be plated ... WebThe molar mass of silver (Ag) is 108 g/mol. The molar mass of sulfur (S) is 32 g/mol. The reaction uses 0.04 mol of silver. Which steps show how to determine the mass of silver …
3.3: Molar Mass - Chemistry LibreTexts
WebThe correct answer is 169.9. The molar mass of silver nitrate ( AgNO 3) is 169.9. The molar mass of silver nitrate ( AgNO 3) can be calculated as follows: It contains one atom of silver, one atom of nitrogen and three atoms of oxygen. The molecular weight can be calculated as: Ag: 1 x 107.9 = 107.9 N : 1 x 14.0 = 14.0 O : 3 x 16.0 = + 48.0 WebMar 27, 2024 · This mass is given by the atomic weight of the chemical unit that makes up that substance in atomic mass units (amu). For example, silver has an atomic weight of … i received a 1099-nec now what
stoichiometry - Percent of silver by mass in an unknown sample ...
WebJul 8, 2024 · Molar Mass of a Molecule. Apply the same principles to calculate the molar mass of a molecule. The molar mass of water is the mass of one mole of H 2 O. Add together the atomic masses of all of the atoms of hydrogen and water in a molecule of water : 2 x 1.008 g (hydrogen) + 1 x 16.00 g (oxygen) = 18.02 g. For more practice, download or … WebOne mole of Water is composed of 1 mole of Oxygen and two moles of Hydrogen. The mass of oxygen equal to one mole of oxygen is 15.998 grams and the mass of one mole of hydrogen is 1.008 g. If we total up the gram amounts of each element in the water molecule = 15.998g/mol + 2(1.008g/mol) we get the molar mass of water = 18.014g/mol. Web1 mol = 6.022 x 1023 = NA What relationships are needed to convert 1.5 grams of carbon to the number of carbon atoms? molar mass and Avogardo's number A sample of pure silver has a mass of 155 g. How many moles of silver are in the sample? 155 g Ag x (1 mol Ag / 107.8 g Ag) = 1.44 mol Ag i received a 1099-nec how do i file