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Compound X has a molar mass of 283.89 g.mol and the following composition: element mass %...
Compound X has a molar mass of 180.16 g-mol and the following composition: element mass % carbon 40.00% hydrogen 6.71% oxygen 53.29% Write the molecular formula of X. Х ?
Compound X has a molar mass of 134.13·gmol−1 and the following composition: element mass % carbon 44.77% hydrogen 7.52% oxygen 47.71% Write the molecular formula of X .
-1 Compound X has a molar mass of 86.09 g-mol and the following composition: element mass % carbon 55.81% hydrogen 7.02% oxygen 37.17% Write the molecular formula of X. 5 ?
Compound X'has a molar mass of 579.43 g mol and the following element | mass % phosphorus 26.73% nitrogen | 12.09% chlorine 61. 1896 Write the molecular formula of X
7 A compound having an approximate molar mass of 165-170g has the following percentage composition by mass: carbon, 42.87%; hydrogen, 3.598%, oxygen, 28.55%, nitrogen 25.00%. Determine the empirical and molecular formulas of the compound. A compound consists of carbon and hydrogen. The molar mass of this compound id 44.1 g/mol The percent by mass of carbon is 81.71%. Determine the empirical and molecular formulas of the compound 8.
20. Draw a concept map to relate the following terms: molar mass of an element, molar mass of a compound percentage composition, empirical formula, and molecular formula. Use an example for each term. (A-4) Part IV: Communication 16 Marks 21. Draw Lewis diagrams to explain the empirical formula for the following substances.(4x2-8 marks) (a) Nal (b) Bro (c) Cache (d) NHÀ
5. 74.1% carbon, 8.6% hydrogen, & 17.3% nitrogen by mass. Its molar mass = 160 g/mol. 6. 59.0% carbon, 7.1% hydrogen, 26.2%oxygen, & 7.7% nitrogen by mass. Its molar mass = 180 g/mol. Find the molecular formula of a compound given: 7. 212.1 g sample with 42.4 g hydrogen and 169.7 g carbon. Molar mass = 30.0 g/mol 8. Carbon & Hydrogen containing compound sample with molar mass = 114.26 g/mol. 1 mole of the sample contains 18.17 g hydrogen....
8. An unknown compound has the following percent composition: 30.446% nitrogen and 69.554 % oxygen. The molar mass of this compound is 138.00 g/mol. Determine the empirical and molecular formula for this unknown. [Given molar masses: N 14.01 g/mol; O 16.00 g/mol] (8 Pointsl
Question 4 (1 point) A compound with a molecular mass of 283.88 g/mol is found to contain 43.64 %P and 56.36% O. What is the molecular formula of this compound? OPO4 OP203 P205 OP4010 OPAOG Question 5 (1 point) If (4.544x10^1) g of oxygen react with (4.81x10^1) g of carbon monoxide to form carbon dioxide. What mass of carbon dioxide forms? Note: Your answer is assumed to be reduced to the highest power possible. Your Answer: Answer
10. A compound has the following percent composition by mass: C: 40.92%; H: 4.58%: O: 54.50%. Calculate the molecular formula if Its molar mass is 216 g/mole.