QUESTION 5 Explain briefly each of the following: (a) the mass spectrum of an element (b) a precipitate (c) one mole of ozone (d) a redox reaction (e) a pure substance

Q: (a) If an automobile travels 225 mi with a gas mileage of 20.5mi/gal, how many kilograms of CO2 are…

A: The combustion equation for octane can be written as: Distance = 225 mi Mileage = 20.5 mi / gallon…

Q: 3.109 How many moles of O are needed to combine with0.212 mol of C to form (a) CO and (b) CO2?

A:

Q: (a) If an automobile travels 225 mi with a gas mileage of 20.5mi/gal, how many kilograms of CO2 are…

A: (a) Volume of the gas can be calculated as: Since, 1 gal = 3785.41 mL Therefore, From the Density:

Q: 100. grams of C5H12 are burned during an experiment, How many moles of CO2 are released?

A:

Q: 3.113 An iron bar weighed 664 g. After the bar had been standing in moist air for a month, exactly…

A: The final mass of the iron bar and rust has to be given, The mass of iron after one-eighth of the…

Q: If 5.00 moles of MgO were reacted with excess moles of P,Ojo, what mass of Mg(PO4)2 would be…

A: Number of moles of MgO = 5.0 moles

Q: If 4.1 g of Cr is heated with 9.3 g of Cl2 what mass CrCl3 will be produced?

A: Mass of Cr = 4.1 g Mass of Cl2 = 9.3 g The molar mass of Cr = 52 g/mol The molar mass of Cl2 =71…

Q: Which of the following models of a chemical reaction BEST represents the law of conservation of…

A: The law of conservation of mass states that the total mass is conserved during the chemical…

Q: A sample of hydrate was heated thoroughly. How many waters of hydration are there if the anhydrous…

A:

Q: how many moles of H2 should be produced theoretically?

A: Molarity = number of moles of solute/volume of solution (in L)  so, number of moles = molarity ×…

Q: Combining 0.294 mol of Fe2O3 with excess carbon produced 11.5 g of Fe. What was the theoretical…

A: Write the balanced equation for the given reaction,

Q: 2. When writing a balanced chemical equation what does it represent when a double arrow (=) is used…

A: When writing a balanced chemical reaction the double arrow means reactants and the products are in…

Q: Assume the following hypothetical reaction takes place: 2 A + 7B --> 4 C + 3 D the reaction of 1.19…

A: • The given reaction is,         2A + 7B -----> 4C + 3D    • The values provided in the question…

Q: B. How many moles of manganomanganic oxide will react with 5.33 x 1025 atoms of aluminum?

A: The balanced Chemical equation given - 3Mn3O4 + 8Al -----> 4Al2O3 + 9Mn   One mole of aluminum =…

Q: Assuming the full 0.01924 moles of tin(Il) reacts, what mass of tin was present in the original ore?…

A: Here we have to determine the mass of tin present in ore if full 0.01924 mole of Sn2+ reacts.  This…

Q: 3.124 What mole ratio of molecular chlorine (Cl2) to molecularoxygen (O2) would result from the…

A: The mole ratio of the reaction has to be given,

Q: 2.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given : Mass of compound combusted = 2.00 g Mass of CO2 produced = 3.30 g Mass of H2O produced =…

Q: What mass of carbon dioxide is produced when 1.0 gallons of gasoline is combusted? The approximate…

A: Gasoline gallon equivalent (GGE) or gasoline-equivalent gallon (GEG) is the amount of alternative…

Q: Consider the following reaction: Pa + 5 02 2 ---------> P.O10 What mass of oxygen will react with…

A: We are given with a chemical equation for which we have to calculate the mass of oxygen that will…

Q: When iridium-192 is used to treat cancer, a small cylindrical piece of 192Ir, a 0.6 mm in diameter…

A: Given,

Q: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula C,H2n++…

A:

Q: The effectiveness of a nitrogen fertilizer is determinedmainly by its mass % N. Rank the following…

A: 1. potassium nitrate Molar mass of KNO3 = 39.10 + 14.01 + (3×16) = 101.11 Mass of nitrogen = 14.01…

Q: 5. In 43 grams of acetate, how many atoms of oxygen are present?

A: Mass of Acetate = 43 gram

Q: 2 Fe,0, 4 Fe + 3 0, (is the reaction balanced?) 2. How many moles of oxygen would be produced from…

A: Please find the attachment.

Q: Given the following reaction in the picture, what mass of hydrogen gas will be produced by the…

A: Given reaction: 3Fe(s) + 4H2O(g) → Fe3O4(s) + 4H2(g) We have to find the mass of hydrogen gas that…

Q: How many molecules of NO2 are present under these conditions at 20 °C in a room that measures 15 *…

A: Given: Temperature=20°C=293.15 K Dimension=15 ft×14 ft×8 ft

Q: 3. The chemistry of solid rocket booster propellant can be summed up in the chemical equation below.…

A:

Q: 4. A student completely dissolved 0.51 g of copper in concentrated nitric acid. After a series of…

A:

Q: 3.15 X 1023 molecules of water were collected in a distillation flask. How many moles of H20 were…

A:

Q: If 7.08 g of mercury (Hg) and 0.57 of oxygen are obtained when 7.65 g of HgO decomposes , what is…

A: We have to calculate the percentage composition of the compound.

Q: 3) A 9.500 g sample of CaCl2•xH2O after heating gives an anhydrous residue of 6.348 g. What is the…

A: given, Mass of CaCl2.xH2O = 9.500 g Mass of anhydrous residue = 6.348 g  Molar mass of CaCl2  =…

Q: Which of the following is necessary to do a complete stoichiometric calculation?  Write the mole…

A: There are four steps to complete stoichiometric calculation: Write the balanced chemical equation.…

Q: molar mass

A:

Q: In determining the empirical formula of MgO, which one of the following statements Is not correct?…

A: Empirical formula of the compound is determine by the gravimetric analysis.  In analytical…

Q: 2KClO3=2KCl+3O 2 25.0 g of KClO 3 decompose, what mass of wil O 2 form?

A: 2KClO3 ----> 2KCl + 3O2 Given,  25 g of 2KClO3 is decomposed to give O2.

Q: *(ii) The reaction of ethene with aqueous potassium manganate(VI), KMNO, produces ethane-1,2-diol,…

A: Mass spectrum is used for the separation of ions and fragmentation of ions takes place in the…

Q: A gold bar is 5.50 cm long, 3.10 cm wide, and 0.300 cm thick. a). If gold has a density of…

A: Hence you posted multiple sub part questions, I answered only the first three questions   We have…

Q: 3.96/When 56.6 g of calcium and 30.5 g of nitrogen gas undergo a reaction that has a 93.0% yield,…

A: The reaction is as follows; 3Ca+N2------------>Ca3N2. The given mass of Ca=56.6 g The given mass…

Q: All of the following are true about a balanced equation EXCEPT A It is necessary for doing…

A: Interpretation- All of the following are true about a balanced chemical equation except -…

Q: What does a chemical equation show? A. The reactants and products in a chemical reaction B. The…

A: Solution 7). A chemical reaction always shows reactants and products

Q: When 50.00 g of calcium carbonate are reacted with sufficient hydrochloric acid, how many grams of…

A: Calcium carbonate reacts with hydrochloric acid to form calcium chloride and carbon dioxide and…

Q: 2) If 28.9g of Lithium Nitride react, how many grams of Magnesium Carbonate are needed to react with…

A:

Q: If the mass ratio of K to F in a compound is 2.06:1, how many grams of F are needed to react with…

A:

Q: 9. How many kilograms of iron can be obtained from 635 pounds of an ore that is 72.0% hematite,…

A:

Q: A certain fertilizer is advertised to contain 10.5% K2O. What percentage of the fertilizer is…

A: The molar mass of any substance is the mass of 1 mole of that substance. The unit of molar mass is…

Q: Balance the following equation by filling the gaps with appropriate numbers. CH4 C2 H20 +

A: The representation of a chemical reaction in the form of substances is known as a chemical equation.…

Q: A 52-kg woman han 7.2 x 10"mol of hemoglobin (molar mass - 64456 glmol)in her blood. How many…

A: No. of mol of hemoglobin = 7.2×10-3 mol Molar mass of 1 mol of hemoglobin = 644.56 g/mol 1 mol of…

Q: Suppose 8.60 g of CH4CH4 is allowed to burn in the presence of 17.00 g of oxygen. How much (in…

A: Given that 8.60 g of methane reacts with oxygen to form carbondioxide and water . Number of moles of…