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- What is q of Fe?*Hexane, C6H14, is known to have a density of 0.655 g/mL at room temperature. How many moles would be in a 25.2-mL sample of hexane? Is it: 16.5, 38.5, 0.446, 86.2, or 0.1911. Moles of NaHCO3 and NaCl:2. Mole Ratio:3. How does your experimental ratio compare to the theoretical? If they are different,explain what might have caused the difference.4. Calculate the percent error.
- (Show all calculations where appropriate.) 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt was found to be 4.501 g. Use these data to calculate: a) The mass of water in the hydrated salt. b) The percent by mass of water in the hydrated salt. 2. If you have covered the topic of "the mole" in class, answer this question. Hint: Re-read the example in the introduction. 4.64 g of Na,SO,*xH,O were heated to yield 2.84 g of Na,SO4. What is the value of x?what is a definition of a moleHi, for the No. of Moles = given mass/molar mass why would you multiply the given mass by 1000?
- 3. Find the Mass of 3.65 x10² mole K,SO̟?C + 2 H2 ----> 1 CH4 What is molar ratio of C to H2 ?Help ost comr X AHRQ's Healt X Illinois StateL X Mind Tap - 55750828934189288909969212&elSBN=9781305657... ☆ Q Search this References Use the References to access important values if needed for this question. A compound is found to contain 37.23 % carbon, 7.827 % hydrogen, and 54.94 % chlorine by mass. What is the empirical formula for this compound? To answer the question, enter the elements in the order presented above. Submit Answer