14. Vitamin C (ascorbic acid) contains 40.92% C, 4.58% H, and 54.50% O by mass. What is the empirical formula of ascorbic acid?(A)\(\text{C}_3\text{H}_5\text{O}_2\)(B)\(\text{C}_2\text{H}_4\text{O}\)(C)\(\text{C}_3\text{H}_6\text{O}_2\)(D)\(\text{C}_3\text{H}_4\text{O}_3\)

10. Which of the following statements is false?(A)For monoelectron atom, the 4s orbital lies lower in energy than the 5s orbital.(B)For a potassium atom, a 4s orbital, a 4p orbital, and a 4d orbital all have the same energy.(C)For a hydrogen atom, a 4s orbital, a 4p orbital, and a 4d orbital all have the same energy.(D)The 4s orbital lies lower in energy than the 3d orbital for atoms K, Ca, Sc, and Ti.

14. Vitamin C (ascorbic acid) contains 40.92% C, 4.58% H, and 54.50% O by mass. What is the empirical formula of ascorbic acid?
(A)\(\text{C}_3\text{H}_5\text{O}_2\)
(B)\(\text{C}_2\text{H}_4\text{O}\)
(C)\(\text{C}_3\text{H}_6\text{O}_2\)
(D)\(\text{C}_3\text{H}_4\text{O}_3\)

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