Ethylenediaminetetraacetic acid (EDTA) is a chemical that binds metals such as lead, to treat lead poisoning. Its chemical formula is (C10H16N2O8). What is the mass percent of oxygen in EDTA?   a. 9.59% b. 14.0% c.22.2% d. 43.8%

Q: In 1987 the first substance to act as a superconductor at a temperature above that of liquid…

A: Mass percent can be calculated using following formula.

Q: 1. In the reaction Mg + N2 → Mg3N2 a. What is the mole ratio of the reacting species (reactants)…

A: The answer to the following question is given as:

Q: Thymol, a substance used as an antiseptic in mouthwash, is composed of C, H, and O. When a 0.1658-g…

A: Empirical formula: The simplest positive integer ratio of atoms present in a compound is known as…

Q: An oxide of phosphorus with Mr = 283.88 contains 43.64% of phosphorus by mass. The MOLECULAR FORMULA…

A: The percent of an element in a compound can be related to the mass of the element in gram. The…

Q: The chemical formula of aspirin is C9H8O4. What is the mass of 0.40 mol of aspirin?  A. 72.00 g B.…

A: Number of mole = mass / molar mass

Q: Consider a compound that produces 5.0 g Al and 19.7 g Cl a. What is the empirical formula of this…

A: Given that : Mass of Al = 5.0 g Mass of Cl = 19.7 g The molar mass of Al is 26.98 g/mol. The molar…

Q: 15. A compound contains 1.90% H, 67.6% CI, 30.5%O? What is its empirical formula? O A. HCIO B. HCIO2…

A: “Since you have asked multiple question, we will solve the first question for you as per our…

Q: 1. ) 70.90 g/mol 2 Clzg) 26.98 g/mol + 3 Ale) 133.3 g/mol →2 AICI6) a. Calculate the theoretical…

A: Given data,Mass of Al=15.0gMass of AlCl3 obtained=25.21gMass of V =220gExperimental yield of…

Q: Calculate the mass (in kilograms) of chlorine in 25 kg of each chlorofluorocarbon (CFC).a. CF2Cl2 b.…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Aluminum carbide reacts with water to form aluminum hydroxide and methane. If 3.30 g of aluminum…

A: The mass of aluminum carbide = 3.30 gThe mass of water = 3.60 gThe mass of excess reagent left =?…

Q: Determine the percent by mass platinum in cisplatin, PtCl2(NH3)2. O a. 0.650% O b. 58.5% O c. 65.0%…

A:

Q: What is the mass of H₂SO4 in an 89.5 cm³ sample of concentrated sulfuric acid that has a density of…

A: The given data is as follows:Volume of sulphuric acid, Density of sulphuric acid,

Q: 17. How many moles are present in 0.0195 g of the amino acid glycine, CH2(NH2)CO;H? A. 2.6 x 10“ mol…

A: Weight of amino acid glycine = 0.0195 g Molecular Mass of amino acid glycine = 75.07 g/mol

Q: 32. Find the mass of oxygen present in 1.50 mole of sucrose (C12H22011). a. 195 g b. 200 g c. 245 g…

A: 1mol is defined as 1/12th part of the mass of C-12 atom.

Q: 3. 2 H2O + 2 Li -> 2 LiOH + H2 25.4 g of water reacts with 12.2 g of lithium. Which reactant will…

A:

Q: A container holds 75.0 g of CuO and 5.00 g of H₂. The following reaction occurs: CuO + H₂ --> Cu +…

A: % yeild        = ( Actual yield ÷ Theoretical yield )×100 % Actual yield is the amount of the…

Q: a. Write a balance equation for the reaction described above. b. How many kilograms of N2 are…

A: (a) The balance chemical equation for the prepration of NH3, using Haber process is :-   N2 + 3 H2 ⇌…

Q: 9. Phosphorus reacts with oxygen to form phosphorus(III) oxide as shown. 4P(s) + 302(g) → 2P203(s)…

A: Dimensional analysis:

Q: How many grams of NH3 would be produced by the reaction of 12.0 g of H2?          N2(g)      +…

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is…

Q: Arrange the following substances in order of increasing mass percent of carbon.a. caffeine.…

A: The given substances should be arranged in increasing mass percent of carbon. The molar mass of…

Q: Arrange the following substances in order of increasing mass percent of carbon. a. caffeine.…

A:

Q: Calculate the mass percent nitrogen in (NH4)2CO3

A: A way to represent the concentration of an element in a compound or a mixture is Mass percentage.…

Q: An unknown hydrocarbon contains carbon, hydrogen, and oxygen. Combustion of 1.5000g of the…

A:

Q: a. A piece of iron metal with a mass of 42.5g is burned in the presence of oxygen. The resulting…

A:

Q: Calculate the mass of sodium chlorate that must decompose to form 6.5 g of oxygen. 2NaClO 3(s) →…

A: Consider the given information is as follows; Reaction:      2 NaClO3(s)   → 2 NaCl(s)   +     3…

Q: 22. The combustion of hexane (C,H14), a component of gasoline, is represented by the balanced…

A: A combustion reaction of hexane. Balanced chemical Reaction :-  2C6H12 (l) + 19O2 (g) --> 12CO2…

Q: Which of the following sequence of reactions will successfully synthesize the compound shown below…

A: Please be noted that none of the sequence of reactions given in the options is not correct. But the…

Q: 25 g of propane (C3H8) react with 25 g of oxygen gas (O2). What mass of water is produced?  C3H8 +…

A: Reaction is C3H8 + 5O2 -> 4H2O + 3CO2 25 gram propane = 0.568 mol 25 gram O2 = 0.781 mol

Q: H 1. CH₂MgBr 2. H3O+ 3. TsCl 4. NaBr

A:

Q: When 4.69 g of ssulfur combines with flourine, 15.81 g of gas is produced. a. what is the empirical…

A: Empirical formula :-  The formula which shows only relative number of atoms (simple ratio) of…

Q: 4. Modern pewter is composed of 91.0% Sn, 7.5% Sb and 1.5 % Cu. What mass of pewter contains 150. g…

A: Answer: This question is based on mass percentage calculation where Mass % of an element=Mass of the…

Q: What is the mass percentage of N in the compound N2O3? Select one: a. 40% b. 36.8 % c. 64.3 % d.…

A: Given, mass percentage of N in the compound N2O3 = ? The formula used here is, mass percentage of…

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.