What is the mass in grams of each quantity of lactic acid (C 3H 6O 3, molar mass 90.08 g/mol), the compound responsible for the aching feeling of tired muscles during vigorous exercise? a. 3.60 molc. 7.3 × 10 24 molecules b. 0.580 mold. 6.56 × 10 22 molecules

Q: Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with…

A: According to the given reaction, 4 moles of HCl reacts with 1 mole of MnO2 to produce 1 mole of…

Q: 3) What is the mole of 6.022 x 10 molecules of CO, ? A) 2 B) 3 C) 1 4) What is the molar mass of CO,…

A: 3) In this question we want to determine the moles of CO2  We know that,  moles of CO2 = ( molecules…

Q: Calculate the mass (in g) of 1.9 x 10 24 molecules of PbSO 4. The molar mass of PbSO 4 is 303.27…

A: Given: Number of molecules PbSO4= 1.9×1024 molecules The molar mass of PbSO4= 303.27 g/mol To find:…

Q: How many molecules of CO2 are present in 43.6 g of CO2? O 5.96 x 1023 O 4.60 x 1023 O 8.90 x 1026 O…

A: The given data contains, mass of CO2 = 43.6 g. Molar mass of CO2 = 44 g/mol.

Q: References] Aspirin, CH4(0COCH3)CO,H, is produced by the reaction of salicylic acid, C,H4(OH)CO,H,…

A: The mass of salicylic acid and acetic anhydride is 100.0 g. The given chemical reaction is,…

Q: The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many…

A: Given,Mass of NH3 = 51. 8 gMass of O2 = 51. 8 gMoles of NH3 and O2 can be calculated as:

Q: What is the theoretical yield (in g) of iron(III) carbonate that can be produced from 3.43 g of…

A: Answer = B 2.07 iron (iii) carbonate

Q: Many fertilizers contain ammonium phosphate as a source of phosphorus and nitrogen. A 8.22 g sample…

A:

Q: How many moles of Al are necessary to form 76.8 g of AIBR3 from this reaction: 2 Al(s) + 3 Br2(1) →…

A: The question is based on the concept of Reaction Stoichiometry.         We have to identify the…

Q: Chloral hydrate (C2H3Cl3O2) is a drug formerly used as a sedative and hypnotic. It is the compound…

A: Hi, since you have posted multiple subpart question, we will answer the first three subparts. Kindly…

Q: 1. How many moles of CuO can be produced from 1.11 mol of Cu2O in the following reaction?…

A: There are three questions are given but I m solving only first one according to the guidelines of…

Q: 1.    How many grams are in 2.3 x 1022  molecules of Ca3?  Ca= 40.08   Molar Mass:       = _________

A:

Q: Table salt, NaCl(s),NaCl(s), and sugar, C12H22O11(s),C12H22O11(s), are accidentally mixed. A 5.50…

A:

Q: When hydrobromic acid reacts with chlorine, bromine and hydrochloric acid are obtained: 2 HBr (aq) +…

A: We have to calculate the theoretical yield and percentage yield.

Q: The following reaction is performed using 8.75 g of Fe2O3 and 4.75 g of Al.   Fe2O3 (s)  + 2 Al (s)…

A: Given, Fe2O3 (s)  + 2 Al (s)  ➝   Al2O3 (s)  2 Fe (s) Mass of Fe2O3 reacts = 8.75 g Mass of Al…

Q: A) What is the molar mass of nickel (II) sulfate (NISO4) in grams per mole?  B) What is the amount…

A: Molar mass = Sum of the atomic mass of elements present in the compound  1 Mole = 6.023*1023 number…

Q: Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with…

A: The given reaction is,                       4HCl(aq)+MnO2(s)⟶MnCl2(aq)+2H2O(l)+Cl2(g) Clearly, from…

Q: A. Mass of crucible: 12.214 g B. Mass of crucible and hydrate: 13.250 g C. Mass of crucible and…

A: Given, Salt : CuSO4

Q: lodine is prepared both in the laboratory and commercially by adding Cl, (g) to an aqueous solution…

A: The balanced reaction taking place is given as, => 2 NaI (aq) + Cl2 (g) -------> I2 (s) + 2…

Q: complete reaction

A:

Q: 2KHC4H406 + Na2C03 H20 + 6 H20→2 KNAC4H406.4 H20 + co21 Balanced Chemical Reaction % Composition by…

A: Interpretation -  To determine the % composition by mass of each compound for this given reaction -…

Q: Ethanol, CH3CH2OH, is the principal type of alcohol found in alcoholic beverages, produced by the…

A:

Q: A chemist reacted 57.50 grams of sodium metal with an excess amount of chlorine gas. The chemical…

A: Ans :-                Step -I           Given chemical reaction  :-…

Q: On faucets and plumbing fixtures in areas with hard water, limescale accumulates over time.…

A:

Q: For the reaction 2KI+Pb(NO3)2⟶PbI2+2KNO3   how many grams of lead(II) nitrate, Pb(NO3)2, are needed…

A: The given balanced chemical reaction is as follows, The given grams of KI is converted into moles…

Q: Consider the balanced equation for the reaction of molecular iodine with molecular oxygen: 2 12 + 5…

A:

Q: 5. Magnesium chloride can be obtained by reacting magnesium hydroxide with hydrochloric acid:…

A:

Q: Methanol (CH 4O), which is used as a fuel in highperformance racing cars, burns in the presence of…

A: According to the given balanced chemical reaction, the two moles of methanol are reacting with three…

Q: Aspirin, CsH4(0COCH3)CO2H, is produced by the reaction of salicylic acid, C6H4 (OH)CO2H, and acetic…

A:

Q: Does aluminum (Al) make sense as the limiting reactant? What is the mass in grams of the excess…

A:

Q: . How many moles of Al(C 2 H 3 O 2 ) 3 contain 19mol O ? 6. Determine the % composition by mass of…

A:

Q: 2. The image is a particulate representation of an important reaction for the formation of…

A: By using molecularity of Products in the given image.

Q: A 52-kg woman has 7.2 × 10⁻³ mol of hemoglobin (molar mass = 64456 g/mol ) in her blood. How many…

A: Given mole of hemoglobin = 7.2 × 10⁻³

Q: Ethylene glycol, the substance used in automobile antifreeze, is composed of 38.7% C, 9.7% H, and…

A: Let us assume we have 100 g of Ethylene glycol, then percentages become grams as follows –  mass of…

Q: The balanced chemical equation is P₄(s) + 6 Cl₂(g) → 4 PCl₃(g). What is the mass in grams of…

A:

Q: The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many…

A:

Q: This equation models how pure silver (Ag) is extracted from ores of AgK(CN)2 (potassium…

A: The balanced chemical equation,  2AgK(CN)2(aq) + Zn(s) → 2Ag(s) + Zn(CN)2(aq) + 2KCN(aq) Given,…

Q: P4(s) + 6Cl2(g) → 4PCl3(l) Given an initial mass of 19.14 g P4, an excess of Cl2, and assuming that…

A: Given-> Weight of P4 = 19.14 gm

Q: What mass of lithium nitride is produced when 75.0 g of lithium metal reacts with nitrogen? 6Li(s)…

A:

Q: How many moles are in a sample of ethanol, CH 3CH 2OH that has a volume of 100.0 mL? The molar mass…

A: Mass of ethanol can be determined as follows:

Q: 7) Define stoichiometry. A) the concept that 6.02 x 1023 atoms are in 1 mole of an element B) the…

A: A) the concept that 6.02 X 1023 atoms are in 1 mole of an element is known as Avogadro's concept…

Q: A chemist reacted 57.50 grams of sodium metal with an excess amount of chlorine gas. The chemical…

A: Given  Mass of Na =57.5 g Molar mass of Na = 23 g Percentage yield = 86% Percentage yield =(actual…

Q: The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many…

A:

Q: 2Fe(s) + 3Cl2(g) → 2FeCl3(s) Given an initial mass of 11.01 g Fe, an excess of Cl2, and assuming…

A: The number of moles of 11.0 g of Fe is calculated as shown below where 55.845 g/mol is the molar…

Q: 1. In a reaction of phosphorus and chlorine, both species is 25.0 g, which of the following…

A: Limiting reagent is the reagent which are present in less amount and consume all in reaction.

Q: What type of chemical reaction is illustrated in the following example?  2 Mg (s) + O2 (g) ⟶ MgO…

A: The type of Chemical Reaction illustrated in the following example is -

Q: How many atoms of carbon are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99…

A:

Q: Methane, CH4, burns in oxygen.   What are the products of the reaction? Write the balanced equation…

A: Since you have posted multiple questions, with multiple sub-parts, the answer for first question…

Q: Chlorine gas can be prepared in the laboratory by the reaction of hydrochloric acid with…

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.