Select all quantities whose values are exact contains infinite number of significant figures), 1. numbers in a mole ratio from balanced chemical equation 2 . density 3. masses 4. number of trails 5. boiling points and freezing point 6. formula weight 7. numbers in a molestar formule 8. Volume 9 . Numbers in a ratio to a metric conversion (e.g. = 1L/ 1000ml

Select all quantities whose values are exact contains infinite number of significant figures), 1. numbers in a mole ratio from balanced chemical equation 2 . density 3. masses 4. number of trails 5. boiling points and freezing point 6. formula weight 7. numbers in a molestar formule 8. Volume 9 . Numbers in a ratio to a metric conversion (e.g. = 1L/ 1000ml

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter11: Solutions

Section: Chapter Questions

Problem 65AP

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The notation “(l)” after a substance’s formula indicates it exists in the __________ state.
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101 Chem101 C How Many Moles Of HCIN X Answered: How many mo X Construct the expression X My Questions | bartleby + app.101edu.co S O 2d UC mail Canvas I UC microsoft 108" Wide Quilt Bac... 14 Google Calendar-. 101 Chem101 b My Solutions | bartl.. Google Docs Question 44 of 52 Submit How many moles of HCl need to be added to 200.0 mL of a 0.200 M solution of NaF to make a buffer with a pH of 3.50? (Ka for HF is 6.8 × 10-4) | mol 3 4 6. C 7 8. 9. +/- х 100 M 9 US 18:26 ...
composition of water in a hydrate, we need to look at our equation. compare it to your experimental values you just obtained in lab. To calculate the percent In this exercise, we are going to calculate the percent composition of water in a hydrate and percent (%) composition = of water mass of water х 100 mass of entire hydrate For LINO3 3H2O (lithium nitrate trihydrate) we have to calculate the mass of each element. Nelice the three in front of the water will give us a total of six hydrogens and three oxygens. Li: 1x 6.94 g/mol N: 1x 14.01 g/mol H: 6x 1.01 g/mol О: 3х 16.00 g/mol O: 3x 16.00 g/mol 54.06 g/mol go l00 68.95 g/mol percent (%) composition = of water 3 H20 х 100 LINO3 · 3H20 percent (%) composition = of water 54.06 g/mol х 100 (68.95 g/mol + 54.06 g/mol) percent (%) composition of water in LINO3 • 3 H20 = 43.9 % 1. Calculate the percent composition of water in the following hydrates: (show all work) ZnSO, 7H20 M9SO 7H20 BaCl2 2H20 There are additional questions on the…
c) Mass of KNO3 decomposed when grams of K2O is produced. blank-blank-blank-blank- conversion factor1-blank - conversion factor2-blank - conversion factor3-blank have to this where it say blank one each blank that one belong it. mole of kno3 , mass kno3- mass ration - molar mass- mole o2-moles n2-mass n2- mass k20- moles k2o
1. A student collected the following data during Lab: Mass of MgCO3 hydrate = 0.9987 g. Constant mass of anhydrous MgCO3 = 0.4831 g How many moles of water were in the MgCO3 hydrate? 2. A student uses gravimetric determination to find the water of hydration of a hydrated sample of cobalt (II) sulfate. The student’s sample contained 0.0098459 moles of anhydrous cobalt(II) sulfate (CoSO4) and 0.068921 moles of water (H2O). What is the formula of the cobalt(II) sulfate hydrate? 3. A student has a sample of CaSO4 hydrate and it weighs 0.4813 grams. He heats it strongly to drive off the water of hydration, and after subsequent heatings, the student finds the anhydrous compound has a constant mass of 0.3750 grams. Find the formula of the hydrate.
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How to do #12 . I figured out the empirical but confused on finding the molecular unless I did the whole thing wrong...
With the correct amount of sig figs thank you!
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