Ethanol fuel mixtures have "E" numbers that indicate the percentage of ethanol in the mixture by volume. For example, E10 is a mixture of 10% ethanol and 90% gasoline. How much E7 should be mixed with 4000 gal of E10 to make an E9 mixture?

Q: If 152 grams of ethane(C2H6) are reacted with 231 grams of oxygen gas, how many grams of water are…

A: Given: Mass of ethane(C2H6)= 152.0 g Mass of O2 = 231.0 g Molar mass of C2H6 = 30.07 g/mol Molar…

Q: How many moles of aluminum are needed to make 6 moles of H2? Give just the number with the correct…

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Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Recall the data, mass of HBr=70. g Molar mass =80.91 g mol-1 mass of NaOH=47.1 g Molar mass=40 g…

Q: A major component of gasoline is octane (CH8). When octane is burned in air, it chemically reacts…

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Q: You add 297 grams of NaCl to a container and then you add 898 grams of water to that same container.…

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Q: For the chemical reaction 2C4H10(g) + 1302(g) → 8CO2(g) + 10H₂O(l) assume that 13.4 g of C4H10…

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Q: Convert 1.99 mol of sulfite (SO3) ions to equivalents. 1.99 mol s03 = 1 TOOLS *10

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Q: Chlorine atoms cause chain reactions in the stratosphere that destroy ozone that protects the…

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Q: Aqueous hydrobromic acid  HBr  will react with solid sodium hydroxide  NaOH  to produce aqueous…

A: Given  mass of HBr     = 36 gram  mass of NaOH = 10.9 gram  mass of water   = ?

Q: The following chemical equation has NOT been balanced.   H3PO4 + Ca(OH)2 --> Ca3(PO4)2 + H2O…

A: Given, mass of H2O = 17.94 g  Molar mass of H2O = 18.01 g/mol  Molar mass of Ca(OH)2 = 74.09 g/mol

Q: Gaseous methane (CH4) will react with gaseous oxygen (O₂) to produce gaseous carbon dioxide (CO₂)…

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Q: 9.66 x 10-3 grams of CaCO3 were present in a 5.00 mL sample of water, how many grams of CaCO3 are in…

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Q: In 2001, about 54. million tons of sulfuric acid was produced in the United States. Calculate the…

A: to provide what is best and to better understand the student's concern for their studies.

Q: Ascorbic acid (C₆H₈O₆) is also known as Vitamin C. How many molecules of C₆H₈O₆ does a Vitamin C…

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Q: A chemist adds 1.20 L of a 0.67M aluminum sulfate (AL solution to a reaction flask. Calculate the…

A: Molarity (M) :  Number of moles of solute (nB) present in 1 litre of solution is called molarity…

Q: Emissions from the burning of fossil fuels are often reported as gigatons ( Gt ) of carbon. In a…

A: Given that : Amount of carbon emitted by China = 2.9 Gt Amount of carbon emitted by United States =…

Q: Part A: For calculations involving gaseous systems, it is important to use the kelvin temperature…

A: Part A: Thermometer reading = 221 °C Part B:  Temperature of the gas = 286 K

Q: Given the balanced chemical reaction below for the combustion of propane (C3H8)   C3H8 (g) + 5 O2…

A: Combustion reaction takes place when there is reaction among the substance and the oxygen from the…

Q: Liquid octane (CH3(CH2)6CH3) will react with gaseous oxygen O2 to produce gaseous carbon dioxide…

A: The balanced reaction between octane and oxygen is written below.2C8H18+25O2 → 16CO2+18H2OThe mass,…

Q: In the combustion of ethanol, 20.50 g of carbon dioxide gas was produced, What is the volume in mL…

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Q: Aqueous hydrobromic acid HBr will react with solid sodium hydroxide NaOH to produce aqueous…

A: 1) Write the balanced chemical equation. 2) Calculate the limiting reagent by taking the reference…

Q: Aspirin can be prepared from salicylic acid (C7H6O3), which has a molar mass of 138.12 g/mol, and…

A: Given reaction: C7H6O3+C4H6O3⟶C9H8O4+C2H4O2 We have to find the yield of aspirin when 2.10 g of…

Q: The reaction between copper and sulfur is represented by the chemical equation shown below. What is…

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Q: Aqueous sulfuric acid H2SO4 will react with solid sodium hydroxide NaOH to produce aqueous sodium…

A: Given: Mass of H2SO4 taken = 83 g. Mass of NaOH taken = 114 g.

Q: Coal is a leading source of energy for the world. While coal is primarily composed of carbon and…

A: Given:S(s)+O2(g)→SO2(g)

Q: A chemist has a 19.50g sample of drinking alcohol (ethyl alcohol). what is the volume ogf the…

A: The relationship between mass and volume is given below.

Q: The chemical formula for propane is: CH;CH,CH3 Calculate the molar mass of propane. Round your…

A: A chemical compound is formed when two or more elements are combined together and the molar mass of…

Q: A glucose solution is frequently used as an intravenous (IV) solution to supply hydration and/or…

A: Given that: Volume of glucose = 2.05 L Molarity of glucose = 0.278 M

Q: Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction:…

A: Aluminium reacts with chlorine to form aluminium chloride. The equation for the balanced chemical…

Q: The chemical formula for calcium hydroxide is: Ca(он), Calculate the molar mass of calcium…

A: The mass of one mole of a substance in grams is callled its molar mass. Units of molar mass are g…

Q: A mixture of methane (CH₄) and butane (C₄H₁₀) at one atmosphere pressure and 25°C has a density of…

A: Ideal gas equation gives the relation between pressure(P) and volume(V), temperature(T) and number…

Q: A glucose solution is frequently used as an intravenous (IV) solution to supply hydration and/or…

A: The objective of the question is to calculate the quantity of glucose, in moles, that was…

Q: Aqueous hydrobromic acid  HBr  will react with solid sodium hydroxide  NaOH  to produce aqueous…

A: Balancing of chemical reaction- It consists of reactant (starting material) and products…

Q: A chemist adds 230.0 mL of a 0.049 mm has added to the flask. Be sure your answ Mu mol

A: Moles of NiCl2 = ( Molarity ) • volume  Moles of NiCl2 = ( 0.049 mmolL-1 ) • ( 230mL )  [ NOTE : 1m…

Q: Methane gas, CH4, reacts with oxygen according to the following equation.  If 42.00 mol of methane…

A: CH4(g) + 2O2(g) → CO2(g) + 2H2O(g)moles of methane (CH4) reacts = 42.00 molExcess reactant: oxygen…

Q: This is the chemical formula for acetic acid (the chemical that gives the sharp taste to vinegar):…

A: Given, moles of carbon in acetic acid = 89 moles  then, moles of O = ?

Q: During an accident, the air bag inflates due to the decomposition reaction of sodium azide (NaN3).…

A: When NaN3 is heated, it decomposes to give solid sodium and nitrogen gas. NaN3→ 2Na(s)+3N2(g)

Q: In one recent year, electric power plants in the United States consumed natural gas, CH4. Natural…

A: To determine the amount of CO₂ released into the atmosphere from the combustion of natural gas, we…

Q: Willa weighs a clean, dry, empty crucible and finds it to have a mass of 95.83 g. After putting a…

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Q: A chemist adds 1.65 L of a 4.1 mol/L potassium iodide (KI) solution to a reaction flask. Calculate…

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Q: Convert the following measurement. kg 4 5.4 x 10 g mol · L mol · dL

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Q: Aqueous hydrobromic acid HBr reacts with solid sodium hydroxide NaOH to produce aqueous sodium…

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Q: Chlorine gas (C1₂) reacts with solid calcium (Ca) to produce solid calcium chloride (CaCl₂). Write a…

A: In this reaction chlorine (Cl2) reacts with calcium (Ca) to produce calcium chloride (CaCl2).…

Q: How many cm3 of HF(g) are needed to produce 26.0g of Na3AIF6. The density of HF (g) at 25C is…

A: given: mass of Na3AlF6  produced = 26.0 g  density of HF = 1.15 g/L The balanced chemical equation…

Q: Aqueous hydrobromic acid  HBr  reacts with solid sodium hydroxide  NaOH  to produce aqueous sodium…

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Q: Liquid hexane CH3CH24CH3 reacts with gaseous oxygen gas O2 to produce gaseous carbon dioxide CO2…

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.