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Convert 3.74 x 1019 particles CrN to moles
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- Convert 5.26×1021 platinum atoms to moles. Express your answer in moles to three significant figures.How many moles are in 8.9 x 10^26 molecules of C6H12O6? Express in decimal form.For the following questions (Q1-Q4), consider the compound CoCl2 • 6H2O (cobalt (II) chloride hexahydrate) which comes as beautiful red-purple crystals. Katie weighs out 2.51 g of the CoCl2 • 6H2O compound on the balance for her experiment. Q1. Determine the molar mass of CoCl2 • 6H2O compound. Q2. Convert 2.51 g of the CoCl2 • 6H2O to moles. Q3. Katie heats her hydrate to remove the water and obtain the anhydrous cobalt (II) compound CoCl2. Her results are below. Complete Katie’s data table of experimental results. Mass of dry crucible + lid 42.37 g Mass of dry crucible + lid + CoCl2 • 6H2O (hydrate) 44.88 g Mass of CoCl2 • 6H2O 2.51 g Mass of crucible + lid + CoCl2 (after heating) 43.79 g Mass of CoCl2 (anhydrous) g Mass of water removed g Molar mass of water 18.02 g/mol Molar mass of CoCl2 129.84 g/mol Moles of H2O mol Moles of CoCl2 mol Molar ratio of water to CoCl2 (experimental) Molar ratio of water…
- This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar): CH,CO,H An analytical chemist has determined by measurements that there are 37. moles of carbon in a sample of acetic acid. How many moles of hydrogen are in the sample? Round your answer to 2 significant digits. 0 mol x10 X SO 5.62 x 10 25 NaCl O 58.44 NaCI 0 0.282 NaCI O 1.70 x 1023 NaCl QUESTION 6 Convert 2.09 moles NaOH to grams. O 174 grams NaOH O 83 6 grams NaOH O2 grams NAOH 0.0523 grams NaOH QUESTION 7 Convert 4 80 x 104 molecules of Hy0, to moles H202. 0.00797 moles H202 .0.363 moles Hy02 6.022 x 105 4 oles H202How many moles are in every conversion factor? It depends on the element. O23. 02 x 10ô 01 O 6.02 x 10²23