a) How many grams of Ca, how many of C and how many of O are contained in 20g of calcium carbonate? b) How many grams of silver nitrate are required to react excess sodium chloride and obtain 100 g of silver chloride if the reaction has a yield of 90%?

Q: f, in the above reaction 5.0 gram of N2 is reacted with 1.0 gram of H2, which reagent is limiting?…

A: Limiting reagent: The limiting reagent in a chemical reaction is a reactant that is totally consumed…

Q: how many moles of NO2 would be produced from 3 mol of O2 in the reaction below assuming the reaction…

A:

Q: a) If 76.4 g of C₂H3 Br3 is reacted with 49.1 grams of O₂ to produce carbon dioxide, water, and…

A:

Q: how many grams of calcium carbonate, CaCO3, are produced from 58.1 g of sodium carbonate, Na2CO3

A:

Q: What is the percent yield when 2.0 g of H2 (g) reacts with 4.0 g of O2 (g) to give 4.5 (g) of water?

A:

Q: determine the percent yield of asprin using 3 grams of salicylic acid, and obtained 2.3 g of asprin…

A:

Q: For the balanced equation shown below, if the reaction of 77.0 grams of CaCN2 produces 27.1 grams of…

A: Number of moles of CaCN2 is equal to the mass of CaCN2 divided by its molar mass. Calculate the…

Q: A 3.75-g sample of limestone (CaCO3) contains 1.80 g of oxygen and 0.450 g of carbon. What is the…

A: Given,Mass of a sample of limestone, CaCO3 = 3.75 gMass of oxygen in this sample = 1.80 gMass of…

Q: What is the percent yield of a reaction in which 212 g phosphorus trichloride reacts with excess…

A: We have to calculate the % yield .

Q: What mass of SO3 is produced frorn the reaction of 12.4 g of SO2 and 3.45 g, of O2?

A: The number of moles of the given substance is equal to the ratio of mass to the molar mass of the…

Q: In a 250 mL can of red bull, there are 80.0 mg of caffeine, how many moles of caffeine is that?

A: Volume of a red bull can = 250 ml  Mass of caffeine = 80.0 mg  Number of moles of caffeine = ?

Q: A sample of chloroethane, C,H,CI, contains 0.274 mol of the compound. What is the mass of the…

A: Number of moles = mass ÷ molecular mass Mass of compound=  number of moles× molecular mass For…

Q: CHEMWORK Vitamin B17, cyanocobalamin, is essential for human nutrition. Its molecular formula is…

A: Molecular formula of cyanocobalamin is C63H88CoN14O14P. Calculation of molar mass: Molar…

Q: How many C atoms are in 772 mol of sucrose? (772 mol is an exact number.)

A: The chemical formula of sucrose is C12H22O11. Given : moles of sucrose = 772 mol

Q: Starting with 9.20 mol of O2 , how many mol of H2S will you need ? and how many mol of SO2 will you…

A:

Q: Please answer the 2 questions: 1) How many 35 mg aspirin tablets can be made from 35.0 kg of…

A: Molar mass of SO2 = 64 g/mol Molar mass of SO3 = 80 g/mol actual yield of SO3 = 15.2 g

Q: Q.2 CaCl₂ is used to melt ice on roads. When 1 mole of CaCl, is dissolved in water, how many moles…

A: Calcium chloride dissolves in water to produce calcium ion and chloride ion.CaCl2 (s)

Q: help please answer in text form with proper workings and explanation for each and every part and…

A: To find the theoretical yield of benzoin, we first need to determine the number of moles of…

Q: An unknown compound has the formula C2H,0̟. You burn 0.2062 g of the compound and isolate 0.5034 g…

A: Given: Compound contains only C, H and O. Molar mass of compound = 72.1 g/mol. Mass of compound…

Q: How many moles of BeCl2 are needed to react completely with 1.75 moles of LiH?

A:

Q: Given the balanced equation 3H2 + N2 - 2NH3, how many moles of NH3 can be made from 2.0 mol N2?

A: Given: Moles of N2= 2.0 mol The equation is

Q: What is the percent yield of 16.0 grams of NH3 in the reaction of 15.0 g of N2 and 12.5 g of H2?

A: Percent yield = actual yield/theoretical yield

Q: 2. How many moles of water are e produced when 3.5 moles of hydrogen reacts with oxygen?

A: The balanced chemical reaction can be written as, 2H2+O2→2H2O

Q: Given the following balanced equation: 2 KHCO3 (s)  -->  K2CO3 (s)  +  H2CO3 (g) Molar mass of…

A: To solve this problem first we have to calculate the theoretical yield of K2CO3 then we will be able…

Q: A reaction produces 0.853 moles of H2O. How many molecules of H2O are produced?

A: Explanation Molar mass The mass of one mole of any substance in grams is called its molar mass.…

Q: How many molecules of O2 are needed to makd 100 grams of CO2? Given: C3H8 (g) + 5O2 (g) --> 3 CO2…

A: Moles of CO2 in 100 g = mass/ molar mass = 100/44 = 2.273 Since 5 moles of O2 is producing 3 moles…

Q: How many moles of cacl2 and 2H2O are present in 1.5 g of cacl2 and 2h2o? Also how many moles of pure…

A: Given :-Mass of CaCl2.2H2O = 1.5 g molar mass of CaCl2O = 147.01

Q: If 43.0 grams of Sodium Carbonate reacts with 72.0 grams of Lead (IV) Chloride to yield Sodium…

A:

Q: How many moles of copper(II) oxide are required to produce 12.3 moles of copper(II) chloride in the…

A: CuO + 2HCl --------> CuCl2 + H2O

Q: Given you have 75.0g of CaCO3, how many moles are there?

A: To solve this problem we have to Molar mass of CaCO3  and number of moles is calculated as  Number…

Q: What is a limiting reagent and theoretical yield in grams of NO2 when 10.0 g NH3 react with

A: Given , mass of NH3 = 10.0g.              Mass of O2 = 10.0 g.  The balance reaction is…

Q: Aspirin, C9H8O4, is a common pain reliever and is also often given in low doses daily for prevention…

A: Given :- number of moles of aspirin (C9H8O4) in sample = 0.0745 mol  To calculate :- mass of aspirin…

Q: (COG 4) Aspirin, C9H8O4, is commonly used to treat pain, fever, and inflammation. Given that the…

A: Since moles is given by  Moles = mass in g / molar mass

Q: How many moles of propane (C3H8) are required to make 0.559 moles of carbon dioxide by combustion?

A: Given moles of carbon dioxide = 0.559 moles

Q: Johny isolated 25 g of a compound following a procedure that would theoretically yield 81 g. What…

A: The percent yield is defined as the ratio of practical yield to that of theoretical yield,…

Q: When potassium chlorate is heated, a life-sustaining gas is released and an ionic compound remains.…

A: Decomposition Reaction: A decomposition reaction occurs when a compound is broken down into two or…

Q: if 118.2 g P4 and 554.7 g Cl2 produce 300.3 g PCl3 what is the percent yield? give answer to 3 sig…

A:

Q: ass of salicylic acid used 2.998 g Moles of salicylic acid (C7H6O3) used 0.0217 moles What is the…

A: Given that: Moles of salicylic acid used = 0.0217 moles To calculate: Theoretical yield of the…

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.