A mixture sample containing 80% NaHCO3 and 20%NaCl was marketed for certain food preparations. As an analytical chemist, you took a 2.00 g of the mixture and heated it until the decomposition reaction was complete and found the final mass was 1.02 g. Based on this, calculate the percent of NaHCO3 in the mixture. Assuming 80% is the actual value, what is the percent error in your measurement?

Q: 6. 1.50 X 1024 molecules of oxygen are burned in a combustion reaction. What is the mass of O2…

A: Moles of compound from given number of molecules can be calculated as: Number of mole=given number…

Q: Ammonia can also be synthesized by the reaction: 3H2 (g) + N2(g) → 2NH3(g) What is the theoretical…

A: Given, Mass of H2 = 5.22 kg = 5220 g     (1 kg = 1000 g) Mass of N2 = 31.5 kg = 31500 g

Q: To determine the amount of iron in a dietary supplement, a random sample of 15 tablets weighing a…

A: A numerical problem based on quantifying Fe in the given tablet, which is to be accomplished.

Q: 4. Urea, CO(NH₂)2, is manufactured on a large scale for use in producing urea-formaldehyde plastics…

A:

Q: The reaction between potassium chlorate and red phosphorus takes place when you strike a match on a…

A: Molar masses KClO3 = 122.55g/mol P4O10 = 283.88g/mol KClO3 =  67.3 g mass of P4O10 = ?

Q: Consider the nickel salt: (NH4 )2Ni(SO4 )2 ·y H2O (Ammonium Nickel Sulfate Hydrate), where y is the…

A: As product formed in anhydrous (y=0) Thus reaction is   Ni(s) + NH3 +SO42-  =(NH4)2Ni(SO4)2  Thus…

Q: The fuel tank of an automobile contains 62.0 kg of gasoline. If the gasoline reacts completely with…

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

Q: The equation for the reaction between sodium hydrogen carbonate and sulfuric acid at room…

A:

Q: Aspirin can be prepared from salicylic acid (C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

A:

Q: How would the following errors affect the empirical formula for the compound? That is, will these…

A: The empirical formula is the simplest ratio of different elements present in a compound. The ratio…

Q: What is the molarity of glacial acetic acid ( CH3COOH, Mr =60.05 g/mL ) at 25 degrees Celsius given…

A: Molarity = number moles  x 1000/V in ml Number of moles = mass of substance /molecular mass of…

Q: Isobutylene is a hydrocarbon used in the manufacture of synthetic rubber. When 0.847 g of…

A: Empirical formula represents the simplest whole number ratio of the element is the compound.

Q: The reaction between potassium chlorate and red phosphorus takes place when you strike a match on a…

A:

Q: To a crucible and cover weighing 33.392 g is added a sample of a copper (II) chloride hydrate (CuCl2…

A: Given data, Mass of crucible + cover = 33.392g Mass of crucible + cover + sample = 34.405g Mass of…

Q: 1. A sample of ultrapure silicon was reacted with excess oxidizing yielding SiO₂. After proper…

A: Given : Weight of SiO2 precipitate = 3.1754 g Purity of ultrapure silicon = 99.98%

Q: Asprin (C9H8O4) is prepared by reacting salicylic acid (C7H6O3) with acetic anhydride (C4H6O3). (a)…

A:

Q: For the chemical reaction 3 KOH + H, PO, K,PO, +3 H,0 what mass of potassium phosphate is produced…

A:

Q: Aspirin can be prepared from salicylic acid ( C7H6O3 ), which has a molar mass of 138.12 g/mol, and…

A:

Q: 892.1 grams of isomaltitol, C12H24O11, was combusted in a furnace completely in an excess oxygen.…

A: The yield of water can be calculated as:-

Q: How many moles of potassium hydrogen phosphate (K2HPO4) are there if some potassium hydrogen…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: When sodium carbonate, Na2CO3 dissolves in water, it forms the sodium cation and the aqueous…

A: Balanced equation is an equation in the number of atoms of reactants or products are equal on the…

Q: f 5.00 g of Ba(OH)2 was dissolved in dist. H2O and diluted to 250. mL, what is the resulting N of…

A: The normality of a solution is an important method to find out the concentration of a solution. It…

Q: A chemical plant uses electrical energy to decompose aqueoussolutions of NaCl to give Cl2, H2, and…

A: The given equation -  Calculate the number of moles of Cl2 - Now calculate the moles and mass for…

Q: For many years the recovery of gold—that is, the separation of gold from other materials—involved…

A: a.

Q: Consider the following chemical reaction. 3 Zn(C:H:O:):(aq) + 2 Na:PO:(aq) → 6 NaC:H:O:(aq) +…

A: Given: Mass (g) of zinc acetate = 20.5 g The given reaction shows that: 3 moles zinc acetate = 1…

Q: The synthesis of maleic acid anhydride (C4H203) can be accomplished by reacting benzene (C6H6) and…

A: The given reaction  for production of maleic acid anhydride is…

Q: Question attached

A:

Q: Precipitating gravimetry is a technique to determine the amount of an analyte based on mass of the…

A: Precipitating gravimetry is a technique to determine the amount of an analyte based on mass of the…

Q: Consider the following reaction for formation of nitric acid from the pollutant nitrogen dioxide…

A:

Q: Aspirin can be prepared from salicylic acid (C,H,O3 ), which has a molar mass of 138.12 g/mol, and…

A: Given: Mass of salicylic acid=3.01 g Moles of salicylic acid= 3.01138.12 g/mol=0.0218 mol The…

Q: Calculate the mass percent (%) of propanol (CH3CH;CH;OH) when 12.8 g of propanol is added to 98.2 g…

A: Mass percent (%) = Mass of soluteMass of solute+mass of solvent×100%

Q: Another component of acid rain is nitric acid, which forms when NO2, also a pollutant, reacts with…

A: Mass of NO2 = 19 kg Molar Mass of NO2 = 46 g mol-1 Molar Mass of HNO3 = 63.01 g mol-1

Q: 1. Iodine is known to exist in the solid state as a diatomic molecule, I,. Using the simplest…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solve first question…

Q: For the combustion reaction of C2H4 (g), what number of moles of CO2 can be produced by the reaction…

A: Combustion of any hydrocarbon produces water and carbon dioxide. Hence the combustion reaction of…

Q: 454 grams of isomaltitol, C12H24O11, was combusted in a furnace completely in an excess oxygen. The…

A:

Q: 2) The stimulant in coffee and tea is caffeine, a substance of molar mass 194 g/mol. When 0.376 g of…

A: The molar mass of caffeine, CO2, H2O, and N2 is 194 g/mol, 44 g/mol, 18 g/mol, and 28 g/mol…

Q: Propenoic acid, C3H4O2, is a reactive organic liquid thatis used in the manufacturing of plastics,…

A: The number of moles for C and H can be calculated from the gain in masses of CO2 and H2O absorbed…

Q: You were given a 5-gram mixture of sand and salt (sodium chloride). What is the percentage of salt…

A:

Q: In an experiment to determine the empirical formula of magnesium chloride, 0.50 g of magnesium…

A: Given : mass of magnesium ribbon = 0.50 gram. To find : empirical formula of magnesium chloride.…

Q: A side reaction in the manufacture of rayon from wood pulp is 3CS2+6NaOH→2Na2CS3+Na2CO3+3H2O  How…

A: Given information: Moles of NaOH = 2.61 mol Volume of liquid = 92.5 mL Density of CS2 = 1.26 g/mL

Q: Straight-chain, saturated carboxylic acids, a class of hydrocarbons, has the general formula…

A: Given that :-  saturated carboxylic acids has the general formula CnH2n+1COOH  Atomic weights:- 1) C…

Q: 1.  What is the mass percent composition of oxygen in a compound having the empirical formula…

A: As per our guidelines, we are supposed to answer only one question. Kindly, repost other question as…

Q: If the gasoline reacts completely with excess oxygen (from the air) to form CO2 and H2O, what is the…

A: Given :- mass of gasoline = 62.0 kg  To be calculated :-  Mass of CO2  Mass of H2O

Q: Solution A is 0.2400 M Ca(NO)2(aq). Solution A is diluted by a factor of 3 to form Solution B.…

A: The reaction taking place is  3As2O3 + 4NO3- + 7H2O + 4H+ → 6H3AsO4 + 4NO Balancing explanation :…

Q: Cryolite (Na3AlF6) is used in the commercial production of aluminum from ore. Cryolite itself is…

A:

Q: What is the maximum mass of Na3AlF6 formed?

A:

Q: When ammonia is mixed with hydrogen chloride (HCl), the white solid ammonium chloride (NH4Cl) is…

A: Given: The mass of ammonia is 10 g. The balanced chemical reaction is, Find the limiting reagent of…

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".