3. Chemical Reactions
Molecular Formula
- Multiple ChoiceGlucose is a simple sugar commonly found in nature. Which of the following is the correct molecular formula for glucose?40views
- Multiple ChoiceWhich of the following is the correct molecular formula for calcium carbonate?39views
- Multiple ChoiceWhich of the following is the correct molecular formula for glucose?37views
- Multiple ChoiceHow many iodine atoms are present in 3 molecules of CI_4?37views
- Multiple ChoiceHow many oxygen atoms are present in one molecule of H_2O?43views
- Multiple Choice
Elemental analysis of a pure compound indicated that the compound had 72.2% C, 8.50% H and the remainder as O. If 0.250 moles of the compound weighs 41.55 g, what is the molecular formula of the compound?
2321views29rank1comments - Multiple ChoiceWhich of the following is NOT a molecular compound?1153views1rank
- Multiple ChoiceWhich of the following is a molecular element?964views
- Multiple ChoiceWhich of the following names and formulas are NOT paired correctly?615views
- Multiple Choice
Use the given empirical formula and molar mass to determine the molecular formula.
Empirical Formula: NH2 Molar Mass: 32.052 g/mol
1004views14rank - Multiple Choice
Glyceraldehyde (M = 90.078 g/mol), a simple monosaccharide, is comprised of 39.999% C, 6.714% H, and 53.297% oxygen by atomic weight. What would be its molecular formula?
969views13rank - Open Question
Find the molecular formula of each compound
725views - Open Question
Of the following molecular formulas for hydrocarbons which is an empirical formula
662views - Open Question
If nicotine has a molar mass of 160±5g/mol, what is its molecular formula?
677views - Open Question
A compound is 43.7% phosphorus and 56.3% oxygen. The formula mass of the compound is 284 g. calculate the empirical formula and molecular formula of the compound.
965views