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Given the atomic mass of select elements, calculate the molar mass of each salt. Element Beryllium (Be) Calcium (Ca) Copper (Cu) Cadmium (Cd) Bromine (Br) Molar mass (g/mol) 9.012 40.08 63.55 112.41 79.90 Match the numbers to the appropriate blanks in the sentences below.
Chemistry questions and answers. Problems 27. Give the name and calculate the molar mass for each of the following substances. a. H3PO4 b. Fe2O3 c. NaCIO4 d. PbCl2 e. HBr f. AI (OH)3.
Step 1. 61.8g of potassium hydroxide (KOH, Molar Mass-56.108g/mol) is allowed to react with 33.8g of phosphoric acid (H3PO4. Molar Mass 98.004g/mol), according to the following reaction: 3KOHaq) + H3PO4 (aq)--K3PO4 (aq) +. 3H20 (1) What is the theoretical yield of potassium phosphate (K PO4, Molar Mass 212.268/mol) for this raction?
Here's the solution: Based on the values given, View the full answer Step 2. Unlock. Answer. Unlock. Previous question Next question. Transcribed image text: How many grams of H3PO4 (molar mass - 98.0 g/mol) are in 50.0 mL of a 1.50 M solution of H3PO4? 7.35 x 10 g O 0.0758 4.755 O 7.358.
To find the percent by mass of phosphorus (P) in phosphoric acid (H3PO4), you need to calculate the molar mass of H₃PO₄ and then determine the contribution of phosphorus to that mass. The molar mass of H PO, is the sum of the molar masses of its constituent atoms: Molar Mass (H₃PO₄) = (3 × Molar Mass of Hydrogen) + (Molar Mass of ...
To start with the solution, calculate the number of moles of potassium hydroxide (KOH) and phosphoric acid (H_3PO_4) by using their given masses and molar masses from the question. (4) Moles of KOH = Mass / Molar mass = 61.8 / 56.108 = 1.10 mol Moles of H3PO4 = 33.8 / 98.004 = 0.345 mol Fr …. View the full answer. Previous question Next question.
The molar mass of H3PO4 is 97.9937 g, (NH 4) 2HPO 4 is 132.06 g, and NH3 is 17.0307 g. (a) What mass of ammonia would have to be added to 40.9 g of phosphoric acid if ammonia is required in 23% excess? 49 17.5 X 9 (b) What is the theoretical yield of (NH4)2HPO4 under the conditions given in
The molar mass of H 3 PO 4 is 98.00 g/mol. The three hydrogen atoms contribute a molar mass of: 3 (1.01 g/mol) = 3.03 g/mol. One phosphorus atom... See full answer below.
61.8 g of potassium hydroxide (KOH, molar mass = 56.108 g / mol) is allowed to react with 33.8 g of phosphoric acid (H3PO4, molar mass = 98.004 g / mol), according to the reaction: 3KOH (aq) + H3PO4 (aq) → K3PO4 (aq) + 3H2O (l) What is the theoretical yield of potassium phosphate (K3PO4, molar mass = 212.268 g / mol) for this reaction? Here ...
Here’s the best way to solve it. 2. A 75.0g sample of liquid contains 17.5% by mass of H3PO4 (molar mass = 98.0g/mol). If 215.0mL of Ba (OH)2 is needed to completely neutralize the acid, determine the concentration (or molarity) of the Ba (OH)2 solution used. (4 pts)