You want to fill several balloons with hydrogen gas and light them on fire to produce a series of huge explosions. The chemistry stockroom is out of hydrogen gas, but you do find a lot of sulfuric acid and limited numbers of aluminum strips equaling about 2 moles of aluminum. If you need 0.13 moles of hydrogen gas to fill a balloon, how many balloons can you fill?

Q: Use the following chemical equation MgCl2(aq)  + 2AgNO3(aq)  →  2AgCl(s)  + Mg(NO3)2(aq) 1.000 moles…

A: According to given balanced reaction, 2 moles of silver nitrate will give 1 mole of magnesium…

Q: The mole is a counting number that allows scientists todescribe how individual molecules and atoms…

A: Molecular weight of Cu(OH)2 = 97.562 gm/mol  Weight of Cu(OH)2 = 23.45 gm  Moles = weight/mol. wt. =…

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

A: First we will write balanced equation, then using it calculate the amount of reactants left after…

Q: 3CO + Fe₂O3- 2Fe + 3CO₂ If 5.06 x 1024 molecules of carbon monoxide (CO) reacts with 6.54 x 1024…

A: From the given reaction it is clear that Co : Fe2O3 : Fe = 3:1:2  According to the data provided, CO…

Q: 2NaCl + 1 Br2 → 2 NaBr + 1 Cl2     How many moles of NaCl are there in 99 grams of NaCl?  If you…

A: a) Given, Given mass of NaCl = 99 grams b) Given, Amount of NaCl is 31 grams c) Given, Amount of…

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

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Q: Consider the reaction of solid P₄ and chlorine gas to form gaseous phosphorus trichloride. The…

A: The reaction given is P₄(s) + 6 Cl₂ (g) → 4 PCl₃ (g)

Q: Show your calculations for all questions. Trilaurin is a triglyceride and is metabolized in the…

A: Molar mass of any compound is defined as addition of all atoms present in the compound. For example…

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

A: Limiting reactant - Reactant species which react completely or present in less amount in reaction.…

Q: You have 9.99 × 10^25 molecules of water. Find the volume of this in milliliters. Water has a molar…

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Q: Silane, SiH4, is prepared according to the following equations: Si(s)  +  3 HCl(g)  →  HSiCl3(l)  +…

A: Si(s)  +  3 HCl(g)  →  HSiCl3(l)  +  H2(g) 4 HSiCl3(l)  →  SiH4(g)  +  3 SiCl4(l)  2.42 moles of…

Q: A mixture of 24.95g ethene (C2H4) gas and 3.25 g of oxygen gas is ignited (assume temperature and…

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Q: 717.7 grams of isomaltitol, C12H24O11, was combusted in a furnace completely in an excess oxygen.…

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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: Balance the following chemical reaction using the combination of a smallest possible set of whole…

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Q: Silane, SiH4, is prepared according to the following equations: Si(s)  +  3 HCl(g)  →  HSiCl3(l)  +…

A: 1 mole of any substance have 1 Avagadro number molecules  1 Avagadro number molecules = 6.023*1023…

Q: ? The balanced chemical equation for this reaction is shown in the image below. Enter your answer as…

A: GivenSodium =5 gOxygen = 5 g

Q: Bromine trifluoride is a colorless pale yellow liquid.  We can prepare this compound by adding…

A: Given that -  Volume of bromine = 47.5 mL  Weight of Fluorine = 51.0 grams    We know that density…

Q: Maggie filtered out a sample of copper (II) chloride, CuCl2 from a local pond, and found its mass to…

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Q: If you place 6.46 X 1027 molecules of Ca(OH)2 into this equation, how many moles of Ca(NO3)2 will be…

A: Given: The reaction is as follows: 2HNO3+CaOH2→CaNO32+2H2O The number of molecules of…

Q: The chemical formula for hydrogen bromide is HBr. A chemist determined by measurements that 0.030…

A: Given data -: Number of moles of HBr -: 0.030 moles  Molecular weight of HBr -: 1+80 = 81 g/mol…

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

A: Given, 2 Al + 6 HCl → 2 AlCl3 + 3H2 moles of H2 produced = 6 moles  moles of Aluminium (Al) needed =…

Q: How many grams of O2 are needed to form 7.35moles of Fe203? 4 Fe + 302 → 2 Fe203 Round your answer…

A: Such problems are solved by using the mole concept. The mole concept relates the number of moles…

Q: Lithium metal has an atomic radius of 152 pm. The molar mass of lithium is 6.94 g/mol and Avogadro`s…

A: Atomic radius = 152 pm = 152 × 10-10 cm  Avadagro constant = 6.022 × 1023  per mol  Molar mass of…

Q: What is the mass in grams of 9.25 x 10^24 molecules of CO2? Write the answer in decimal form.

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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: Convert (8.808x10^24) molecules of water to grams of water. Avogadro's Number is (6.02x10^23). You…

A: given, a number of molecules of water = 8.808×1024 molecules Avogadro's constant, Na = 6.02×1023…

Q: When aluminum metals reacts with HCl(aq), the products formed are AlCl3(aq) and hydrogen. If 6.477…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: A chemist adds 110.0 of a 1.63 molcalcium bromide (CaBr 2 ) solution to a reaction flask Calculate…

A: I assume what the chemist added is: 110.0 mL of a 1.63 mol/L (or 1.63 M) calcium bromide (CaBr2)…

Q: Silane, SiH4, is prepared according to the following equations: Si(s)  +  3 HCl(g)  →  HSiCl3(l)  +…

A: Given data, Moles of Si = 2.51moles Given equations: Si(s)  +  3 HCl(g)  →HSiCl3(l)  +  H2(g)…

Q: Let suppose you have a large vat or container of I 2 (diatomic iodide), I tell you there is a total…

A: Given information: Moles of I2 molecule = 6 mol

Q: %3D The mass of 2.21 x 1040 atoms of iron (molar mass = 55.845 g/mol) is O 2.78 x 104 g. 2.05 x 102g…

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Q: What is the mass of 3.5 x 10^-3 molecules of copper (II) carbonate? Use correct significant figures…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: What is the molar mass for aluminum sulfate?

A: Number of moles = mass/molar mass  So, mass = moles × molar mass

Q: You have a lot of paperwork laying around. A ream of stacked paper is 500 sheets and is 2.0 inches…

A: Given, In the ream number of stacked paper = 500 1 mol of paper = 6.022×1023  sheets of paper number…

Q: Crime scene investigators keep a wide variety of compounds on hand to help with identifying unknown…

A: Given: Percent mass of carbon = 67.31 %. Percent mass of hydrogen = 6.978 %. Percent mass of…

Q: Given the following equation: 8 Fe + Sg → 8 Fes How many moles of iron is needed to react with 16.0…

A: The given reaction :  8 Fe + S8 = 8FeS In this reaction 8 moles of iron is reacting with 1 mole of…

Q: A chemist prepares a solution of potassium bromide (KBr) by measuring out 31. mg of KBr into a 100.…

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.