In a certain electrolysis experiment, 1.24 g of Ag were deposited in one cell (containing an aqueous AgNO3 solution), while 0.650 g of an unknown metal X was deposited in another cell (containing an aqueous XCl3 solution) in series with the AgNO3 cell. Calculate the molar mass of X.
Solved
Show answers
More tips
- L Leisure and Entertainment History of International Women s Day: When Did the Celebration of March 8th Begin?...
- S Style and Beauty Intimate Haircut: The Reasons, Popularity, and Risks...
- A Art and Culture When Will Eurovision 2011 Take Place?...
- S Style and Beauty How to Choose the Perfect Hair Straightener?...
- F Family and Home Why Having Pets at Home is Good for Your Health...
- H Health and Medicine How to perform artificial respiration?...
- H Health and Medicine 10 Tips for Avoiding Vitamin Deficiency...
- F Food and Cooking How to Properly Cook Buckwheat?...
- F Food and Cooking How Many Grams Are In a Tablespoon?...
- L Leisure and Entertainment Carving: History and Techniques for Creating Vegetable and Fruit Decorations...
Answers on questions: Chemistry
- C Chemistry How many grams of caco3 are required to prepare 50.0g of cao...
- C Chemistry An aqueous solution is saturated in both potassium chlorate and carbon dioxide gas at room temperature. what happens when the solution is warmed to 85 ∘c...
- C Chemistry What are glucose and oxygen converted into in aerobic respiration? A) water only B) energy only C) carbon dioxide only D) carbon dioxide, water, energy...
- C Chemistry During a Lab exercise a student had a 142 grams mass of gold (Au) that was at a temperature of 100.0°C. The mass of gold (Au) was placed in to a styrofoam cup that...
- M Mathematics I m a little bored so can someone solve this for me, please and Thank you.m^3 = 65...
- E English 6. Beautiful is to attractive as hardworking is to * tiredreadyΟ Ο Ο Οindustriousprosperous...
- C Chemistry Which planet has a windstorm that has lasted 300 years?...
- C Chemistry What is the Molar Mass of Cl4...
- M Mathematics Plz help meeeeeeeeeeee Hurrrrrrrrrrryyyyy!...
- M Mathematics n an orchard, there are 13 apple trees, 21 orange trees, and a cherry tree. What is the ratio of orange trees to cherry trees?...
Ответ:
The correct answer is 169.56 g/mol.
Explanation:
Based on the given information, the mass of Ag deposited is 1.24 g, and the mass of unknown metal X deposited in another cell is 0.650 g. The number of moles of electrons can be determined as,
= 1.24 g Ag * 1mol Ag/107.87 g/mol Ag * 1 mol electron/1 mol Ag ( the molecular mass of Ag is 107.87 g/mol)
= 0.0115 mole of electron
The half cell reaction for the metal X is,
X^3+ (aq) + 3e- = X (s)
From the reaction, it came out that 3 faraday will reduce one mole of X^3+.
The molar mass of X will be,
= 0.650 g/0.0115 *3 mol electron/1 mol
= 56.52 * 3
= 169.56 g/mol
Ответ:
Explanation:
ldk