Acetylene gas is 92.3% carbon and 7.7% hydrogen (by mass), and its miler mass is 26 g/mol. What is its molecular formula?

Q: You can get quicklime (CaO) and carbon dioxide (CO2) when you heat limestone (CaCO3). Compute for…

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Q: N2 + 3H2 2NH3 -> How many liters of NH3 are formed from 9.00 g of H2

A: The number of moles of the substance is provided as the ratio of the mass(m) and its molar mass…

Q: If you have a sample of 0.3154g of air and air is 78.0% nitrogen, by mass, what is the mass of…

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

A: Mass of liquid hexane = 37.9 gm  Molar mass of hexane = 86 gm/mole  Mass of oxygen = 102. gm  Molar…

Q: The gasoline tank of an automobile contains 59.0 kg of gasoline. The gasoline combines with 236 kg…

A: The reaction of gasoline (isooctane) and oxygen takes place as,                       2 C8H18  + 25…

Q: Automobiles are often implicated as contributors to global warming because they are a source of the…

A: From given  Miles driven by car per week = 100miles  Total week in a year = 52.14 so pounds of CO2…

Q: What volume (in Liters) of nitrogen gas (N2) is equal to 3.42x1022 molecules of this substance?

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Q: What is the mass, in grams, of 22.6 milliliters of gasoline?

A: density = mass/volume  so, mass = density × volume

Q: Natural gas is mostly composed of methane (CH4). In 6.07 g of CH4, how many millimoles of CH4 are…

A: Given, Natural gas is mostly composed of methane. Weight of methane =  6.07 g Molar mass of methane…

Q: * Identity of Dehydrated salt (for afterwards) Mass of empty dish 70.874g Mass of dish + hydrated…

A: The number of moles of dehydrated salt is 0.002384 mol. nMnCl2=mMnCl2MMMnCl2=0.3 g125.844…

Q: Aqueous hydrochloric acid (HCI) will react with solid sodium hydroxide (NAOH) to produce aqueous…

A: Given,Mass of HCl = 0.729 gMass of NaOH = 0.46 gMoles of HCl and NaOH can be calculated as:

Q: Complete the calculations in the following table: Mass of Moles of Volume of Volume of Unrounded…

A: The explanation is given below-

Q: An analysis of a compound shows that it contains 19.8 g of Carbon, 2.50 g of hydrogen, and 11.6 g of…

A: Please find your solution below : Percentage composition of any element gives the information about…

Q: The combustion of sulfur leads to the formulation of only one product, sulfur dioxide. We burn 1.6g…

A: Given :- mass of S = 1.6 g  To calculate :- mass of SO2 number of moles = mass/molar mass  mass =…

Q: C. Naphthalene, C1,Hg, the chemical used in mothballs, can be isolated from the naphtha fraction of…

A: Since the whole mass contain 10 molecules of naphthalene. In solid state they are stick together and…

Q: Aspirin or acetyl salicylic acid is synthesized by reacting salicylic acid with acetic anhydride:…

A: Since the given reaction is C7H6O3 + C4H6O3 -----> C9H8O4 + C2H4O2  a) Hence from the above…

Q: gaseous methane (ch4) will react with gaseous oxygen(O2) to produce gasesous carbon dixodie (co2)…

A: Mass of methane = 0.481 gm Moles of methane = mass / molar mass                              = 0.481…

Q: 8. How many chlorine atoms are in 8.4 liters of chlorine gas?

A: Given 8.4 litre gas

Q: A biogas-plant converts biomass into methane. From a certain substrate, 52% (w/w) methane can be…

A: Dear student as you have asked multiple part questions we will solve only first three parts only.…

Q: Combustion of hydrocarbons such as methane (CH4) produces carbon dioxide, a "greenhouse gas."…

A: Write a balanced chemical equation, including physical state symbols, for the combustion of gaseous…

Q: The normalty of 0.14 mol/L Al2O3

A: When molarity is multiplied by the n- factor we get normality. Al2O3 has the n-factor of 6.

Q: If 20.0 g of magnesium reacts with excess hydrochloric acid, what mass of magnesium chloride is…

A: Given Mass of magnesium = 20 g Standard Molar mass of magnesium = 24.305 g/mol Molar mass of…

Q: Aqueous hydrochloric acid (HCl) will react wit (H,0). Suppose 1.8 g of hydrochloric acid is m…

A: The following scenario illustrates the significance of limiting reagents. In order to assemble a…

Q: Acetylene (C,H,) gas is often used in welding torches because of the very high heat produced when it…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

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: If 11.2 g of hydrogen reacts completely with 86.8 g of oxygen to form hydrogen peroxide, what is the…

A: The law of conservation of mass states that the mass can neither be created nor be destroyed. Hence,…

Q: Scientifically, nitrogen and hydrogen at high temperature are converted to ammonia. When 350 grams…

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Q: (a) A student has a 10.0g sample of CaBr2. Show the setup of the calculation to determine the number…

A: The number of the moles of any substance present in a sample is the ratio of the given mass of that…

Q: 450 g of H2O is decomposed to form H2 and O­2 gas. a. What is the mass (in g) of H2 gas produced?…

A: Decomposition of H2O 2 H2O → 2 H2 + O2   * Mass of H2O = 450 g * moles of H2O = Mass of H2O / Molar…

Q: In a combustion reaction 33.658 g of oxygen are reacted with an unknown hydrocarbon and produces…

A: According to law of conservation of mass; the total mass of products is equal to the total mass of…

Q: In grams 5.16 M? MW K2Cr2O7 = 294.2 g/mol A 351 g 153 g 531 g 545 g

A: Given, molarity of solution= 5.16M Volume of solution = 350 cm3 = 0.35L

Q: 50 cm3 of a gaseous hydride of phosphorus, PHn reacts with exactly 150 cm3      of chlorine, Cl2 to…

A: Given,  Volume of gaseous hydride of phosphorus (PHn) = 50 cm3  Volume of Cl2 = 150 cm3  Volume of…

Q: If 5.9 × 1025 molecules of CO2 are produced in a combustion reaction, what is the volume in liters…

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: Consider the following unbalanced chemical reaction:  Br2 + F2 → BrF5 How many grams of fluorine…

A: the balanced equation for given reaction is Br2 + 5F2 → 2BrF5 here 1 mole of Br2 needs 5 moles of F2…

Q: 3. If 0.4352 grams sample of Copper oxide is heated and decomposes into 0.3477 g of copper oxide and…

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Q: an experiment, a hydrated CuSO4 salt was heated and thus dehydrated. Determine the % H2O by weight…

A: We have given that , a hydrated salt  CuSO4  was heated and we get Dehydrated Salt CuSO4  Mass of…

Q: Hydrogen and oxygen are reacted and the water formed is collected at 25 C , where it has a density…

A: The balanced chemical reaction, 2H2 (g) + O2 (g)  →  2H2O (l) Given,  Mass of H2 taken = 36.8 g  And…

Q: Q: A chemist attempts to prepare some crystals of borax (sodium tetraborate, Na,B4O7.10H2O) by…

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Q: The reaction between aluminum and iron(III) oxide (known as the thermite reaction) can generate…

A: From a balanced reaction we can calculate the mass of product formed in the reaction .

Q: 4AL,(SO,), Element # of Atoms 4NAC H,O, 2Sr, (PO), Element # of Atoms Element # of Atoms Total Total…

A: 2Sr3(PO4)2   Element # of atoms Sr 6 P 4 O 16 Total 26

Q: solid mercury (II) oxide decomposes when heated forming liquid mercury and oxygen gas as the only…

A: Often while calculating, there is a need to convert units from one system to another system. The…

Q: 1 gram mixture of CaCO3 and SrCO3 is ignited and converted to CaO and Sro. The mass of kides mixture…

A: Given mass of mixture of CaCO3 and SrCO3 is 1g. Given mass of mixture of oxides is 0.6 g. Given…

Q: Benzene, C6H6, is an important solvent and intermediate chemical in many chemical reactions. It is…

A: According to the mole concept, one mole of any substance related as - (1) 1 mole of the Substance =…

Q: How many Liters of H2 are made from 12 grams of Al?

A: Mass of Al = 12 g Volume of H2 produced =?

Q: A cylinder with a moveable piston contains 0.872 mol of neon gas and has a volume of 512 ml. What…

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".