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11 solutions

Empirical Formula

Q. A compound was found to be 42.87% carbon, 2.398% hydrogen, 16.66% nitrogen, and 38.07% oxygen.1. Calculate the empirical formula of the compound. SHOW WORK. 2. If the actual molecular mass = 252.3 g/mol, what is the molecular formula? HINT: Calculate the molar mass of the empirical formula. SHOW WORK.

Solved • Jun 30, 2019

Empirical Formula

Q. Analysis of a 1.000-g sample of the oral hypoglycemic agent metformin yielded 0.3720 g of carbon, 0.0858 g of hydrogen, and the rest of it nitrogen. Metformin has a molar mass of 129.16 g/mol. What is the molecular formula of Metformin?

Solved • May 30, 2019

Empirical Formula

Q. a compound is analysed and found to contain 35.6 6% carbon 16.2% hydrogen and 45.1 0% nitrogen. what is the empirical formula of the compound?

Solved • May 8, 2019

Empirical Formula

Q. What is the molecular formula for a compound whose molecular molar mass is 70 g/mol and whose empirical formula is CH2?

Solved • May 8, 2019

Empirical Formula

Q. A compound is 87.5% N and is 12.5% H. What is its empirical formula?

Solved • May 1, 2019

Empirical Formula

Q. A compound contains, by mass, 12.58% H (hydrogen), and the remainder is N (nitrogen). What is the empirical formula of the compound?

Solved • Apr 29, 2019

Empirical Formula

Q. A 2.80-g sample of an oxide of bromine is converted to 4.698 g of AgBr. Calculate the empirical formula of the oxide. (molar mass for AgBr = 187.78 g/mol)

Solved • Mar 31, 2019