A pharmacist prepares an antiulcer medicine by mixing 286 g Na2CO3 with water, adding 150 g glycine (C2H5NO2), and stirring continuously at 40°C until a firm mass results.The pharmacist heats the mass gently until all the water has been driven away. No other chemical changes occur in this step. Compute the mass percentage of carbon in the resulting white crystalline medicine.

Q: A 7.591-g gaseous mixture contains methane (CH₄) and butane (C₄H₁₀). Complete combustion to form…

A: Step-1CH416g + 2O2 → CO2 + 2H2OC4H1058g + 132 O2 → 4CO2 + 5H2O

Q: Aspirin often used as an analgesic to relieve minor aches and pains. Elemental analysis of aspirin…

A: The given organic compound is made up of carbon, hydrogen and oxygen. The mass percent of C is 60%,…

Q: Elixirs such as Alka-Seltzer use the reaction of sodium bicarbonate with citric acid in aqueous…

A: Mass of NaHCO3 = 9.2×102 mg The balanced chemical equation for the reaction of sodium bicarbonate…

Q: 2NaI(aq)+Cl2(g)⟶I2(s)+2NaCl(aq)2NaI(aq)+Cl2(g)⟶I2(s)+2NaCl(aq)   How many grams of sodium iodide,…

A: The number of moles of a compound is calculated by taking the ratio between mass to the molar mass…

Q: a. What mass is represented by 0.0146 mol of C3H7OH (2-propanol, rubbing alcohol)? Mass %3D b. What…

A: a). Given: The moles of C3H7OH = 0.0146 mol. The molar mass of C3H7OH = 60.09 g/mol.

Q: What mass of carbon dioxide can be made by reacting 1.56 grams of sodium bicarbonate with 0.687…

A: In order to calculate the mass of carbon dioxide we have to determine the limiting reagent. By…

Q: Calcium carbide, CaC2, can be produced in an electric furnace by strongly heating calcium oxide…

A: A balanced equation is one in which the number of atoms on both side of the equation are same. A…

Q: An unknown hydrocarbon is subjected to elemental analysis. The results of this test show that the…

A:

Q: 2.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

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

A:

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

A:

Q: A student prepares aspirin using 15.096 grams of salicylic acid (MW = 138 g/mol) and 5.91 mL of…

A:

Q: Urea (CH,N2O) is a common fertilizer that can be synthesized by the reaction of ammonia (NH3) with…

A: %Yield = (Obtained amount/calculated amount)x 100 Number of moles = Mass/molar mass Given that:'…

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

A:

Q: Phosphorus may be determined analytically by precipitating it as MgNH4PO4 followed by ignition to…

A: Given data: Mass of sample of phosphate rock = 9.346 gms It contains 71.24% of Ca3(PO4)2 So, mass of…

Q: [References] Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas (CH4) by the…

A: Ammonia reacts with oxygen and methane to form hydrogen cyanide and water. The equation for the…

Q: A mixture was found to contain 1.50g NH4CI, 0.80 g NaCI, and 1.20 g SiO2. What is the percentage of…

A: Given: Mass of NH4Cl = 1.50 g Mass of NaCl = 0.80 g Mass of SiO2 = 1.20 g

Q: For the reaction of sodium sulfide with iron(III) chloride below , you have 319.5 kg of sodium…

A: The number of moles of sodium sulfide and iron (III) chloride is 4094 mol and 3097 mol respectively.…

Q: A 10.68 g sample of compound that contains only carbon, hydrogen, and oxygen was analyzed through…

A:

Q: 7.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Empirical formula is the formula which is written using minimum ratio of atoms present in the…

Q: Elixirs such as Alka-Seltzer use the reaction of sodium bicarbonate with citric acid in aqueous…

A: The balanced reaction taking place is given as 3 NaHCO3 (aq) + C6H8O7 (aq) -------> 3 CO2 (g) + 3…

Q: A student prepares aspirin using 17.530 grams of salicylic acid (MW = 138 g/mol) and 5.00 mL of…

A: The balanced reaction is as follows:        C7H6O3    +    C4H6O3     →     C9H8O4      +…

Q: Potassium perchlorate is prepared by the following sequence of reactions: Cl₂ (g) + 2 KOH(aq) →…

A:

Q: student is given a mixture containing two nitrate compounds. The mixture includesNaNO3 and Ca(NO3)2.…

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: 2.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Empirical formula :- The formula which gives the simplest whole number ratio of atoms of various…

Q: Titanium tetrachloride, TiCl4 , is prepared by the reaction below.…

A: Given, Mass of TiO2 = 35g. Mass of Cl2 = 38g. Mass of C = 11g. The balanced reaction for the…

Q: Potassium perchlorate is prepared by the following sequence of reactions: Cl₂(g) + 2 KOH(aq) →…

A: First of all we will add the recation to get final reaction and then by using unitary method,we will…

Q: the mass percentage composition of the elements in caffeine, C8H10N4O2.

A:

Q: 1.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: A student prepares aspirin using 2.409 grams of salicylic acid (MW = 138 g/mol) and 5.71 mL of…

A:

Q: A student, Ken, is given a mixture containing two nitrate compounds. The mixture includes NaNO3 and…

A: Mass Percentage of NO3 in the mixture is 73.76%. it implies that 100 g of mixture contains 73.76 g…

Q: What chemical property of potassium chlorate did you use to design a procedure to determine the…

A: Interpretation-  Tell that chemical property of potassium chlorate which we use to design a…

Q: Aspirin can be prepared from salicylic acid ( C7H,O3 ), which has a molar mass of 138.12 g/mol, and…

A: Balanced chemical equation is as

Q: Aspirin can be prepared from salicylic acid (C7H603), which has a molar mass of 138.12 g/mol, and…

A: First of all we calculate the mass of Acetic anhydride using Following relationship - Density =…

Q: 8.50 g of a certaln Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: Iodine is prepared both in the laboratory and commercially by adding Cl2(g)Cl2(g) to an aqueous…

A:

Q: An unknown hydrocarbon is subjected to elemental analysis. It is determined to be 85.6% carbon and…

A: Mass % of Carbon = 85.6% Mass % of Hydrogen = 14.4% Empirical formula =?

Q: The percentage composition of acetaldehyde is 54.5% C, 9.2% H, and 36.3% O, and its molecular mass…

A:

Q: 4) Zinc oxide can be produced by the following reaction: 2 Zn (s) + O2 (g) 2 ZnO (s) - There are…

A: Given-> Surface area = 5500 cm2 For 1 cm2 surface required atom of Zn = 1.9 × 1020

Q: A mixture contains only NaCl and Fe(NO3)3. A 0.456-g sample of the mixture is dissolved in water,…

A: Given a mixture has NaCl+Fe(NO3)3. When excess NaOH is added, Fe(NO3)3 reacts with NaOH and forms…

Q: 3. A 5.000 g sample of an organic compound containing C, H, and O atoms was combusted and produced…

A:

Q: 2NH3(aq) + CO, (aq) → CH,N,O(aq) + H,O(1) In an industrial synthesis of urea, a chemist combines…

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

Q: odine is prepared both in the laboratory and commercially by adding Cl2(g)Cl2(g) to an aqueous…

A: Given, Iodine is prepared both in the laboratory and commercially by adding Cl2(g) to an aqueous…

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

A:

Q: A student prepares aspirin using 2.365 grams of salicylic acid (MW = 138 g/mol) and 5.89 mL of…

A:

Q: 8.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given : The compound is made of carbon, hydrogen and oxygen. Mass of compound burned = 8.50 g Mass…

Q: The mass of an empty evaporating dish is 42.48 g. A sample of the hydrate KAl(SO4)2 x XH2O is added…

A: To Solve this problem first we have to calculate the mass of water hydrated then we will calculate…

Q: [References] Hydrogen cyanide, HCN, is prepared from ammonia, air, and natural gas ( CH4) by the…

A:

Q: Enter your answer in the provided box. For many years the extraction of gold-that is, the separation…

A:

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".