Ask a New Question

If the percent (mass/mass) for

Is is possible to get 100% on a percent yield?Now, For Cup A I had : Mass of cup water & stirrer: 67.51 mass of sodium
1. 1 answer
2. asked by Rose
3. 637 views
I need to find the average molar mass of an unknown element. The atomic mass is 120; the mass numbers of isotopes are 295, 296,
1. 1 answer
2. asked by Joe
3. 513 views
I need to find the average molar mass of an unknown element. The atomic mass is 120; the mass numbers of isotopes are 295, 296,
1. 1 answer
2. asked by Joe
3. 619 views
Did I do this correctly or do I need to try again?What is the mass percent of a solution when 18.6 g of table salt is added to
1. 1 answer
2. asked by Lori
3. 652 views
A 45.10 g sample of ethylene glycol (C2H6O2) is dissolved in 250.0 g of water at 25.0 °C. Determine the molarity (M), mole
1. 1 answer
2. asked by nay
3. 183 views
A hospital saline solution is analyzed to confirm its concentration. A 60.0 mL sample with a mass of 50.443 g is evaporated to
1. 1 answer
2. asked by Harry
3. 852 views
What is the percent composition (percent by mass) of hydrogen in water? Hint:determine the percent composition (percent by mass)
1. 1 answer
2. asked by Tayo
3. 170 views
thank you for any help possible.Given a Mass Percent 13.3% and a Mass Solvent of 325.2 g, find Mass of Solute and Mass of
1. 1 answer
2. asked by ben 16
3. 642 views
An unknown compound has a percent composition of 75.95% C, 17.72% N, and 6.33% H by mass with a molar mass of about 240 g/mol.
1. 1 answer
2. asked by ezile
3. 163 views
An unknown compound has a percent composition of 75.95% C, 17.72% N, and 6.33% H by mass with a molar mass of about 240 g/mol.
1. 1 answer
2. asked by ezile
3. 141 views