2. A sample of table sugar (sucrose, C12H22O11) has a mass of 1.202 g.A. Calculate the molar mass of sucrose.Show your work.

Step 1:To calculate the molar mass of sucrose (C12H22O11), we need to find the sum of the atomic…

Answered: 2. A sample of table sugar (sucrose,…

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter3: Chemical Reactions

Section: Chapter Questions

Problem 130QRT: Consider the chemical reaction 2 S + 3 O2 → 2 SO3. If the reaction is run by adding S indefinitely...

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Two general chemistry students working together in the lab weigh out 0.832 g of CaCl2 2 H2O into a crucible. After heating the sample for a short time and allowing the crucible to cool, the students determine that the sample has a mass of 0.739 g. They then do a quick calculation. On the basis of this calculation, what should they do next? (a) Congratulate themselves on a job well done. (b) Assume the bottle of CaCl2 2 H2O was mislabeled; it actually contained something different. (c) Heat the crucible again, and then reweigh it.
Determine the quantity (g) of pure CaCl2 in 7.5 g of CaCl2•9H2O. Show your work.
Many solids used in the lab come with different variations for different purposes. For example, EDTA has a formula of C1oH16N2O8 (292.2438 g/mol) but to improve the solubility of EDTA in water, the one we used in the lab is EDTA disodium salt dihydrate "C10H14N2N22O8 •2H20 " (Molar mass: 372.24 g/mol)where there are two sodium atom and two water molecule attached to the EDTA, therefore, when calculating the molar mass of EDTA, we need to add the mass of two sodium atoms and two water molecule mass. Calculate the molar mass of Iron(III) chloride hexahydrate: FeCl3• 6H20. O 162.29 g/mol 180.29 g/mol 270.29 g/mol O 17527 g/mol
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Fe2O36) + 2 Alis) Al2O316) + 2 Fe() ------> 159.70 26.98 101.96 55.85 Molar masses in g/mol If 40. g of iron (III) oxide are combined with 12.5 g of aluminum how many grams of molten iron are formed? O 18 g O 47 g 28 g O 26 g
Use the following data. A. Mass of crucible: 12.214 g B. Mass of crucible and hydrate: 13.250 g C. Mass of crucible and anhydrous salt: 12.885 g Note: We are using CuSO, instead of MgSOA. Calculate the molar mass of CuSO4 and write its value here: Mass of anhydrous salt: 12.214g+x=12.885g=0.671_ Moles of anhydrous salt: 4.20*10^-3 Mass of water lost: g/mol. mal 159.61
Show work and steps 6.00 × 10−8 mol of nicotine, C10H14N2 2.50 mol of strontium nitrate, Sr(NO3)2 3.50 × 10−6 mol of uranium hexafluoride, UF6
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A 15-g sample of lithium is reacted with 15 g of fluorine to form lithium fluoride: 2Li + F2 → 2LiF. After the reaction is complete, what will be present?
Vitamin B12 , cyanocobalamin, is essential for human nutrition. It is concentrated in animal tissue but not in higher plants. Although nutritional requirements for the vitamin are quite low, people who abstain completely from animal products may develop a deficiency anemia. Cyanocobalamin is the form used in vitamin supplements. It contains 4.34% cobalt by mass. Calculate the molar mass of cyanocobalamin, assuming that there is one atom of cobalt in every molecule of cyanocobalamin.
To help farmers and gardeners, commercial fertilizers have a big three-number "NPK" label on the bag that gives the amounts of three key plant nutrients: nitrogen, phosphorus and potassium. For example, a bag of "10-10-10" fertilizer has 10% by mass nitrogen, 10% by mass potassium as potash (K₂O), and 10% by mass phosphorus as phosphate (P₂05). Suppose a certain fertilizer has the following composition: ingredient ammonium phosphate ((NHÂ)¸PO4) ((NH,),CO) potassium sulfate (K,SO4) urea inert ingredients percent by mass 14% 36% 44% 6% What should the first (nitrogen) number on the bag label be? That is, calculate the percent by mass of nitrogen in this fertilizer. Round your answer to the nearest percent.

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2. A sample of table sugar (sucrose, C12H22O11) has a mass of 1.202 g. A. Calculate the molar mass of sucrose. Show your work.