The principal component of mothballs is naphthalene, a compound with a molecular mass of about 130 amu, containing only carbon and hydrogen. A 3.000-mg sample of naphthalene burns to give 10.3 mg of CO2. Determineits empirical and molecular formulas.

Q: 3. Given the following reactants, predict the expected products and balance the chemical equation.…

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Q: Combustion of hydrocarbons such as nonane (C,H20) produces carbon dioxide, a "greenhouse gas."…

A: The balanced equation for the combustion of octane is   C9H20 (l)+ 14 O2 (g)------------> 9 CO2…

Q: For each of the following reactions, predict the products, converting each to a balanced formula…

A: Aqueous solutions of aluminium chloride and lead (ii) nitrate are mixed together. Both the reactants…

Q: The oxidation number of Cl in HClO₂ is

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Q: yttrium (III) nitrate, prepared a solution of the metal salt by dissolving .7168 g of yttrium (III)…

A: Given that, Mass of Yttrium (III) nitrate = 0.7168 grams Volume of dissolution = 200 mL…

Q: aqueous solutions of phosphoricacid and potassium hydroxide are mixed together. (Heat is released…

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Q: Write the balanced molecular chemical equation for the reaction in aqueous solution for mercury(I)…

A: A chemical equation represents the reactants taking part in any reaction and formation of products.

Q: How many grams of magnesium oxide can be produced by reacting 0.248 g magnesium that is 97.5% pure…

A: Given mass of Magnesium = 0.248g% purity of Magnesium = 97.5%No.of molecules of oxygen = 5.36 x…

Q: In a neutralization reaction, 50.00 mL of 0.8500 M phosphoric acid reacts with 2.500 g of magnesium…

A: The answers to the first three questions can be given as - Given Data -

Q: The oxidation state of chlorine in manganese(III) chlorite is:

A: The oxidation state of chlorine in manganese(III) chlorite is calculated as follows:

Q: 1. Metals react ith oxygen gas to produce oxides with the general formula Mx O y. Write a balanced…

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Q: How many molecules of hydrosulfuric acid could be reacted by 2.330 g scandium (III) hydroxide?

A: This problem can be solved by comparing stoichiometric ratio of hydrosulfuric acid and scandium(iii)…

Q: Suppose an aqueous solution containing 1.00 g of lead(II) acetate is treated with 5.90 g of carbon…

A: The balanced reaction between lead acetate and carbon dioxide is as shown below. Pb(CH3COO)2 + CO2…

Q: Review Topics) References) Use the References to access important values if needed for this…

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Q: Determine the oxidation state for each of the elements below. The oxidation state of manganese in…

A: Answer:Formal charge on an atom present in a specie is called its oxidation number in that specie.

Q: Please write the molecular equation when mixing the following two aqueous salts: C a C l 2 ( a q )…

A: The reaction takes place in stoichiometric ratio .

Q: Write the balanced chemical equation for the reaction shown. O= 0, = NO, = NO %3D balanced equation:

A: Given  NO + O2   →  NO2 Balance equation according to molecule given in box = ?

Q: A piece of aluminum foil 1.00cm^2 and 0.550-mm thick is allowed to react with bromine to form…

A: Given: The thickness of Al foil=0.550 mm 1 cm =10 mm 0.550 mm ×1 cm10 mm =0.055 cm Volume =1.00 cm2…

Q: What mass of phosphoric acid in grams is needed to produce 4.59 mol of water?

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Q: Write a complete balanced chemical equation with states for the reaction described below: A…

A: Answer: When two solutions are mixed and a solid substance forms due to very low solubility in…

Q: 3. (Balance the equation) (NH.);CO,→NH;+CO,+H;0

A: Balanced chemical equation of a reaction is written according to law of conservation of mass.…

Q: Write a balanced chemical equation for the following reactions and classify reactions. i. When…

A: In balanced chemical equation number of atoms of each species are equal on both reactant and…

Q: Write a balanced chemical equation based on the following description: solid magnesium metal reacts…

A: The reactants given are solid magnesium metal i.e. Mg (s) and chlorine gas i.e. Cl2 (g). And the…

Q: Iron forms a sulfide with the approximate formula Fe,Se. Assume that the oxidation state of sulfur…

A: Given that,  An iron sulfide compound with molecular formula = Fe7S8 oxidation state of sulfur = -2…

Q: Write the balanced molecular chemical equation for the reaction in aqueous solution for cesium…

A: The reactants given are  1) Aqueous cesium carbonate i.e Cs2CO3 (aq) 2) Aqueous magnesium nitrate…

Q: single and double replacement reaction.

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Q: A 0.4731 g sample of a pure soluble bromide compound is dissolved in water, and all of the bromide…

A: Given : mass of compound = 0.4731 gAnd mass of AgBr formed = 0.8275 gMolar mass of AgBr = Atomic…

Q: How many grams of Zn can be produced by heating 81g Al with zinc chloride?

A: Aluminium reacts with zinc chloride to form zinc metal and aluminium chloride. The equation for the…

Q: Write the balanced COMPLETE ionic equation for the reaction when aqueous KBr and aqueous A9C2H3O2…

A: Given: Aqueous KBr and Aqueous AgC2H3O2 are mixed in solution to form aqueous KC2H3O2 and solid…

Q: (a) P + 0, → P;0, (b) K,0 + H,0 –→ KOH (d) FeCl, + NAOH Fe(OH)3 + NaCl (e) AGNO, + H,S → Ag,S + HNO,…

A: Balanced equations for the given reactions are : a) 4P+5O2 →2P2O5 b) K2O +H2O →2KOH c) 2AlBr3…

Q: You reduce a 0.9355g solid platinum (IV) oxide with 0.0879g hydrogen gas to yield elemental platinum…

A: Limiting reagent is defined as the reactant which is present in a limited quantity in the reaction.…

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".