(3.10: Similar to Example 3.17 & 18)Find the empirical formula of a compound containing 36.86% nitrogen and 63.14% oxygen by mass. O N₂O O N₂O3 O NO₂ O N304
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- Carbon dioxide emissions associated with a one-night stay in a hotel room are calculated at 28.98 kg of CO2 per room day for an average hotel. The 250 rooms of your hotel are all occupied for two days during a college football game. How much CO2 did the guests and hotel release into the atmosphere? Round your answer to the nearest whole number. kgsClayton akers has inhaled an estimate 6.00 * 10 to the 21th power molecules of 02 before delivering his fastball. How many moles of 02 is this?A 15.152-gram sample of a hydrate was heated to drive off the water, leaving Al(NO3)3 (s) with a mass of 8.603 grams. Calculate the value of in Al(NO3)3•nH2O (s).
- An unknown organic compound containing 3 COOH groups has a molar mass of 110.01 g/moles. What is the theoretical NE value? Answer should be a whole number.a hydrated CuSO4 salt was heated and thus dehydrated. Determine the % H2O by weight in the hydrated CuSO4 salt. SHOW WORK TO RECEIVE FULL CREDIT mass of empty dish 43.571 gmass of dish + hydrated salt 44.326 gmass of dish + dehydrated salt 44.054 g 4. Using the data found in question number 3, determine the empirical formula for the hydrated CuSO4salt. What is the chemical name of this dehydrated salt? 5. Suppose that after your second heating, you were impatient and did not wait until your porcelain evaporating dish to cool. Instead, you weighed it while it was still hot. How would this specifically affect the calculated percentage of water in the compound?Na2SO4 • XH2O If I have 0.548 g of the hydrate after weighing and 0.272 g of H2O was lost after heating the hydrate, what is the value of x for the hydrate?
- The human body excretes nitrogen in the form of urea,NH₂CONH₂. The key biochemical step in urea formation is thereaction of water with arginine to produce urea and ornithine.(a) What is the mass percent of nitrogen in urea, arginine, andornithine? (b) How many grams of nitrogen can be excreted asurea when 135.2 g of ornithine is produced?How many moles of cacl2 and 2H2O are present in 1.5 g of cacl2 and 2h2o? Also how many moles of pure cac1 to a present and the 1.50 g of cacl2 and 2H2OIn 1997, at the United Nations Conference on Climate Change, the major industrial nations agreed to expand their re-search efforts to develop renewable sources of carbon-basedfuels. For more than a decade, Brazil has been engaged in aprogram to replace gasoline with ethanol derived from the rootcrop manioc (cassava).(a) Write separate balanced equations for the complete combus-tion of ethanol (C₂H₅OH) and of gasoline (represented by theformula C₈H₁₈).(b) What mass of oxygen is required to burn completely 1.00 Lof a mixture that is 90.0% gasoline (d=0.742 g/mL) and 10.0%ethanol (d=0.789 g/mL) by volume?(c) If 1.00 mol of O₂ occupies 22.4 L, what volume of O₂ isneeded to burn 1.00 L of the mixture?(d) Air is 20.9% O₂ by volume. What volume of air is needed toburn 1.00 L of the mixture?
- For the parts circled in orange, my question is since we are trying to find moles of H3A here, are we dividing by 3 because there are 3 H, or are we dividing by 3 because there are 3NaOH? Basically, why are we dividing by 3The following is the balanced equation for the combustion of butanol in oxygen:C4H9OH(g) + 6O2 --> 4 NO(g) + 6H2O(g) a. How many grams of butanol must be burned to produce 18.50g of carbon dioxide? b. How many grams of water are also produced? c. How many grams of oxygen are needed to produce 18.50g of carbon dioxide? d. Use the results from a, b and c to show this reaction obeys the law of conservation of mass.Freon-12 (CF2Cl2), widely used as a refrigerant and aerosol propellant, is a dangerous airpollutant. In the troposphere, it traps heat 25 times as effectively as CO2, and in thestratosphere, it participates in the breakdown of ozone. Freon-12 is prepared industrially byreaction of gaseous carbon tetrachloride with hydrogen fluoride. Hydrogen chloride gasalso forms. How many grams of carbon tetrachloride are required for the production of16.0 dm3 of Freon-12 at 27°C and 1.20 atm?