How much Chlorhexidine (base) is contained in 20 g of Chlorhexidine Gluconate? (Chlorhexidine Gluconate; C12H30C12N10.2C 6H12O7; MW = 897.8; Gluconic acid; C6H12O7; MW = 196.19)单项选择题

题目图片
A

a. 11.26 g

B

b. 15.63 g

C

c. 20.00 g

D

d. 25.59 g

E

e. 35.4 g

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Question textCalculations Calculate the molecular mass (to 2 decimal places) of pinacol, pinacolone, 2,4-dinitrophenylhydrazine and the final hydrazine product using the following values: [table] Molar mass (carbon) | 12.01 g/ mol Molar mass (hydrogen) | 1.01 g/ mol Molar mass (oxygen) | 16.00 g/ mol Molar mass (nitrogen) | 14.01 g/ mol [/table] [table] Molar mass (pinacol) | Answer 1 Question 5 | g/mol Molar mass (pinacolone) | Answer 2 Question 5 | g/mol Molar mass (2,4-dinitrophenylhydrazine) | Answer 3 Question 5 | g/mol Molar mass (pinacolone 2,4-dinitrophenylhydrazone) | Answer 4 Question 5 | g/mol [/table]

2.2 Calculate molecular mass, formula mass and molar mass

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