What is the \"sf\" at the end of the mole fraction answer? Unt2 s//go.view.usg.e

Question

What is the "sf" at the end of the mole fraction answer?

Unt2 s//go.view.usg.edu/d2Vle/content/1524182/viewContent/24876227/View Princ of Chemistry II and Lab Section 03G ca tion Resources Course Horme SylaDUS Content Assessments Carr mur Unit 2 Homework 2 Tab'e of ContensUNIT 2: Solutions and ollaidsColligative Properties Unit 2 Homework 2 . d) 0.6661 The molar mass of oxvcen is 32.00 a/mo, and that for methene is 16.042 9/mol. For simal city, we assume 1 mol O2 Mol 02 32.0g 02 32.00 902 Mol CH.-32.0 g CH4 ( 1110420CT,-1.995 mol C,H, Mole fT action of O2- radon mol CH (1.01.0+L.05)= 0.3334 ( 48 f) racl 02 t mO CH(1.000 +1.995) Question 14 The normal freezing point of Denzene (CgH6is 5.4s°C, The norma freezing point of a solution prepared by 100.0 cf benzene is 5.08°C. What is the moar mass ofthe ocmpound? For benzene, K: 5.12 °C,m @ Unit 2 Homework 2

Explanation / Answer

Significicant Figures: It is use when calculating answers.

S.F: The total number of digits in a number including the last digit whose value is is uncertain is called significant figrues(S.F)

For E.X: 1) 576= 3sf 2) 0.48= 2sf 3) 0.05= 1sf 4) 5.0= 2sf 5) 0.0200= 3sf

In the above answer 0.3334 have 4sf

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