Chemistry, 16.12.2020 07:00 Destinirainer
Sam heated 4.00 g mercury (II) oxide (molar mass of HgO is 216.59 g/mol) to form mercury (molar mass of Hg is 200.59 g/mol) and oxygen (mola rmass of O2 is 32.00 g/mol). He collected 0.280 g oxygen. The balanced equation is shown below.
2HgO-> 2Hg + O2
What was the percent yield of oxygen
percent yield=actual yield/theoretical yield x 100%
Answers: 1
Chemistry, 22.06.2019 06:30, angelrenee2000
Ineed someone to see if my answers are correct! if any are wrong let me know what the correct answers would be and how to get that answer! 1. how many moles of sodium chloride are in 28 grams od nacl? a. 265 mole naclb. 856 mole naclc. 479 mole of nacld. 1.2 mole nacl < my choice2. 734 grams of lithium sulfate (li2so4) are dissolved to make 2500 ml of solution what is rhe molaratiy? a. 2.67 mb. 4.56 mc. 3.89 m < my choiced. 1.78 m3. how many grams of cacl2 would be dissolved in 3.0 l of a 0.50 m solution of cacl2? a. 250 g cacl2 b. 166.5 g cacl2c. 113.65 g cacl2d. 98 g cacl2 < my choice4. suppose you had 58.44 g of nacl and you dissolved it in exactly 2.00 liters. the molarity if the solution would be 0.5 mtrue < my choicefalse 5. i would need 22g of naoh to make a 3.0 m solution using 250 ml of solvent. true < my choicefalse6. identify the solute: you have a .0195 m solution made from using 6.5 g of solute and 3 l of solvent. identify the solute by solving for molar weight. a. the solute is nacl because the molar weight is 58.43 g/mol < my choiceb. the solute is h2so4 because the molar weight is 98.06 g/molc. the solute is cacl2 because the molar weight is 111.11 g/mol
Answers: 1
Chemistry, 22.06.2019 19:30, 2020sanchezyiczela
Draw the lewis structure for the trisulfur s3 molecule. be sure to include all resonance structures that satisfy the octet rule.
Answers: 3
Chemistry, 22.06.2019 23:00, tovarclaudia055
What does a numerical subscript following an element in a chemical formula mean?
Answers: 1
Sam heated 4.00 g mercury (II) oxide (molar mass of HgO is 216.59 g/mol) to form mercury (molar mass...
Chemistry, 06.07.2019 17:30
History, 06.07.2019 17:30