What is the percent by mass of hydrogen in CH3COOH (formula mass = 60. )? A) 7. 1%

B) 5. 0%

C)6. 7%

D)1. 7%

15 points pls answer quick it's timed I don't need explanation

Let the ed50 of a recreational drug be defined as the amount required for 50% of a test group to feel high or get a buzz. if the ed50 value of ethanol is 470 mg/kg body mass, what dose would a 70 kg party goer need to quickly consume in order to have a 50% chance of getting a buzz? 235 mg 470 mg 32,900 mg 35,000,000 mg