how many molecules are contained in two 490.-mg tablets of penicillin (C6H18N2O4

Question

how many molecules are contained in two 490.-mg tablets of penicillin (C6H18N2O4S, molar mass 334.4 g/mol)? report your answer with the appropriate number of significant figures solved: to woman was to to convert to convert moles to X A woman was how o.mheducation.com/hmtpx Software Lis Available computers Equipment Blackboard Leam G uA Box Refworks CH 104 050 2017: Summer 2017 CHEMISTRY Question 46 (of 94) 00 points 10 attempts left Check my work Be sure to answer all parts. How many molecules are contained in two 490. mg tablets of penicillin (C16HisN:o4S, molar mass 334.4 g/mol? your answer with the appropriate number of significant figures. x 10 (select molecules of penicillin ALABAMA

Explanation / Answer

mass = 490 mg = 0.490 g

molar mass = 334.4 g / mol

moles = mass / molar mass

           = 0.490 / 334.4

           = 1.465 x 10^-3

number of molecules = 1.465 x 10^-3 x 6.023 x 10^23

number of molecules     = 8.82 x 10^20

Related Questions

Navigate

• Browse (All)
• Browse H
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.