`(32)/(6.023)``32xx6.023`6.02332 Show Answer : C Solution : Mass of 1 mole of sulphur = 32 gm <br> Mass of `10^(23)` atoms of sulphur <br> `=(32)/(6.023xx10^(23))xx10^(23) gm=(32)/(6.023)` <br> The ratio : <br> `("Mass of " 1 "mole" " of sulphur")/("Mass of " 10^(23)"atoms of sulphur")=(32)/(32/(6.023))` <br> `" "= 6.023` Free RRB ALP 2018 Full Test (Stage II - Part A) 100 Questions 100 Marks 90 Mins Last updated on Sep 22, 2022 The Railway Recruitment Board (RRB) released the list of provisionally selected waitlisted candidates for the post of RRB ALP (Assitant Loco Pilot) on 29th June 2022. The candidates should note that this is with reference to CEN-01/2018. The selected candidates will have to go through the process of document verification and fulfillment of other eligibility criteria. You can click on RRB ALP Result to check the list of the shortlisted candidates. The 2022 recruitment process for loco pilot is awaited. Stay updated with the General Science questions & answers with Testbook. Know more about Chemistry and ace the concept of Structure of Atom. Assignment 026Question 1 Question 2 Question 3 Question 4 ANSWERSQuestion 1 (00000001A0601402, Variation No. 70): 113 g Feedback The molar mass of chromium is 52.00 g/mol. Therefore: n moles of chromium atoms will have a mass
of (n TIMES 52.00) g. Here's how it's done using dimensional analysis:
NOTES: 1. "mol" is the official abbreviation for "mole" (or "moles"). 2. The number of significant figures in our molar mass should, if possible, exceed that in the measured mass. Since there are 3 significant figures in 2.18 g; it is sufficient to round off our molar mass to four significant figures (52.00 g/mol). Question 2 (00000001A0601403, Variation No. 53): 0.0988 mol sulfur atoms
Feedback The molar mass of sulfur is 32.07 g/mol. Therefore: n moles of sulfur atoms will have a mass of (n TIMES 32.07) g. Here's how it's done using dimensional analysis:
Question 3 (00000001A0601404, Variation No. 57): 3.84x1022 silver atoms Feedback The molar mass of silver is 107.9 g/mol. Therefore: n moles of silver atoms will have a mass of (n TIMES 107.9) g. Here's how it's done using dimensional analysis. First, we calculate the number of moles:
THEN, we convert mole count to individual atom count:
Here's a more direct approach, since 1 mole of atoms is 6.02x1023 atoms:
Question 4 (00000001A0601405, Variation No. 28): 1.55x102 g silver atoms Feedback The molar mass of silver is 107.9 g/mol. Therefore: n moles of silver atoms will have a mass of (n TIMES 107.9) g. We can calculate (n) by simply dividing the individual atom count by Avogadro's number. Then multiply (n) by the molar mass to get the answer. Here's how it's done using dimensional analysis. First, we convert individual atom count to mole count:
THEN, we convert moles to grams:
Here's a more direct approach, since 1 mole of atoms is 6.02x1023 atoms:
What is the mass of 1 mole of sulphur atom?The atomic weight of sulphur is 32 grams. So, one mole of sulphur will weigh 32 grams.
What is the mass of 1 sulphur?The atomic number of sulphur is 16 and its atomic mass is 32. What is the number of neutrons in sulphur? Q. the molecular mass of sulphur weighs 32 grams, ehat is the mass (in grams ) of 1 atom of sulphur.
How many atoms are in 1 mole of sulfur?Answer and Explanation:
One mole of sulfur atoms is Avogadro's number of atoms, which is 6.02 x 1023 atoms.
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