3.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 78. g/mol, is burned completely in excess oxygen, and the mass of the products carefully measured: product mass carbon dioxide 11.85 g water 2.43 g Use this information to find the molecular formula of X.

Q: How many grams of iron, molar mass 55.85 g/mol, will be consumed during the formation of 14.34 grams…

A: Using mole concept easily determines how much moles of  reactant are used and how much moles of…

Q: Phellandrene is a component of frankincense resin and has an odor described as “peppery-minty”. It…

A: Given ; hydrogen = 11.84%

Q: There has been increased evidence that human activities are causing changes in Earth's atmospheric…

A: The mass of oxygen used = 1.0 g. The molar mass of Oxygen = 16 g/mol.

Q: A 2.19 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: The mass of compound containing Carbon, hydrogen, oxygen, nitrogen and sulfur combusted in excess…

Q: Caproic acid, which is responsible for the foul odor of dirty socks, is composed of C, H and O…

A: Given,0.450g sample produces 1.024 g of CO2  and 0.418 g of water.

Q: 4.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Given that, 4.0 g of a compound X is made of carbon, hydrogen and perhaps oxygen. The molecular…

Q: Barium reacts with water to produce barium hydroxide and hydrogen gas. When 5.489 g Ba is combined…

A: Given: Mass of Ba = 5.489 g Mass of H2O = 53.00 g Mass of Ba(OH)2 produced = 6.849 g Chemical…

Q: The compound, X,O3, contains element X and oxygen atom combined in a ratio of 2.00 grams of X to…

A: The given two compounds are formed by the elements oxygen and X. The mass ratio of the oxygen to…

Q: [References] A1.782-g sample of coal contains 1.584 g C. Calculate the mass percentage of C in the…

A: Given data, Mass of coal sample = 1.782 g Mass of carbon = 1.584 g Mass percentage can be calculated…

Q: How many moles of gold are present in a sample containing 7.50 x 1024 atoms of gold?

A: Given- Number of atoms of gold = 7.50 ×1024 atom

Q: completely in excess oxygen, and the mass of the products carefully measured: product mass carbon…

A: Explanation given as follows

Q: 8.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: Assuming the molecular formula of compound is CaHbOc  And since moles = mass / molar mass Hence…

Q: Researchers obtained the following data from experiments to find the molecular formula of…

A: In order to find the formula of benzocaine we first write down the given data: Mass of the sample=…

Q: How many grams of NBR3 can be made from 2.22 x 10-2 moles of Br, ? N2 + 3 Br2 2 NB13 + 44.0 kJ The…

A:

Q: 2.915 g of a biochemical substance containing only carbon, hydrogen, and oxygen was burned in an…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: 4.33 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A:

Q: A sample of trifluoroacetic acid, C,HF,O2, contains 62.1 g of oxygen. Calculate the mass of the…

A: The mass of oxygen in the trifluoroacetic acid, C2HF3O2 is = 62.1 g The mass of the trifluoroacetic…

Q: A 12.39 g sample of phosphorus reacts with 42.54 g of chlorine to form only phosphorus trichloride…

A: Given: mass of P = 12.39 g mass of Cl2 = 42.54 g molar mass of P = 30.97 g/mol molar mass of Cl2 =…

Q: A 2.86 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: Given, mass of 2.86 g sample of a compound produced 1.61 g CO2 and 0.989 g H2O.Moles of CO2 and H2O…

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: When the substance shown below burns in oxygen, the products are carbon dioxide and water. How many…

A:

Q: Calcium oxide (CaO), also known as quicklime, can be produced by heating calcium carbonate (CaCO3).…

A: The molecular formula of calcium oxide is CaO. It states that one molecule of calcium contains one…

Q: the atomic weight of magnesium is 24.3 g/mol, calculate how many magnesium atoms does 5g represent?

A: Mass of Mg = 5 g Atomic weight of Mg = 24.3 g/mol

Q: How many bromine atoms are present in 32.5 g of CH2Br2?

A: Since there are multiple questions, we are authorized to answer only the first one. If you want the…

Q: If 49.5 gg of molten iron(III) oxide reacts with 32.0 gg of aluminum, what is the mass of iron…

A:

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

A: Given that the mass of CO2 and H2O formed by the burning of 2.50 g of compound X is 3.44 g and 0.94…

Q: A mixture of 197.1 g of P and 203.6 g of O, reacts completely to form PO, and P010: Find the masses…

A: Mass of O2 = 203.6 g * moles of O2 = Mass of O2 / Molar mass of O2 = 203.6 g / 32 (g/mol) = 6.36…

Q: Is the volume of H2 produced larger than the volume of O2 producedbecause (a) hydrogen atoms are…

A: Given: The volume of H2 produced is larger than the volume of O2

Q: A compound of hydrogen and carbon is 92.3% carbon, If 40 g of hydrogen is reacted with 135 g of…

A: Molecular mass is the sum of the masses of all the atoms in a given molecule. Percentage composition…

Q: Given that a 40.14 g sample of hydrated NiSO4•XH2O is reduced in mass to 22.14 g upon heating.…

A: Given:Mass of NiSO4.XH2O = 40.14 g.Mass of NiSO4 = 22.14 g. (On heating water molecules…

Q: An unknown sample is composed of hydrogen, sulfur, and oxgen. A 2.358 gram sample of this unknown…

A: Given data is: unknown sample (H,S;O) mass of sample = 2.358 g The reaction is: sample (H,S,O) + O2…

Q: 3 g of a hydrated metal chromate is heated only 1.479 g of anhydrous metal chromate remains.  What…

A: Some salts are found in their hydrated form. In hydrated form, water is coordinated with the salts.…

Q: A 3.76 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: Given: mass of sample = 3.76 g mass of CO2 = 2.12 g mass of H2O = 1.30 g 5.92 g produced 6.07 g SO3…

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A:

Q: Magnesium oxide contains 60.3 % magnesium by mass. Calculate the mass of magnesium oxide sample if…

A: Given,Mass percent of magnesium in magnesium oxide = 60.3%.Mass of magnesium in sample = 20.5g.

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

A: The details solution for this is provided below in attach image.

Q: carbon-hydrogen-nitrogen compound when burned completely, a 0.312 g sample yields 0.458 g CO2 and…

A:

Q: A scientist is trying to discover information about an unknown metal in a compound. The formula for…

A: Step - 1Formula for the compound = XBr3Means in 1 mol of compound 3 mol of Bromine are…

Q: Suppose 2.43 g of magnesium is reacted with 3.20 g of oxygen: 2Mg + O2 → 2MgO. How many grams of MgO…

A:

Q: A new dye has been developed for coloring fabrics. The dye has percent composition of 75.91% carbon,…

A: The given percentage of each element in the dye is as follows: C = 75.91% H = 6.38 % N = 17.71 %…

Q: 9.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: According to the question, we need to find out the molecular formula of the hydrocarbon X.  We have:…

Q: Narceine is a narcotic in opium that crystallizes from solu-tion as a hydrate that contains 10.8…

A: The value of x in narceine.xH2O is to be determined.

Q: A 3.09 g sample of a compound consisting of carbon, hydrogen, oxygen, nitrogen, and sulfur was…

A: Given- Compound consist of C, H, O, N, and S mass of sample for combustion = 3.09 g mass of CO2 =…

Q: 7. A compound contains 30.4 g of nitrogen and 69.6 g of oxygen by mass. What is the chemical formula…

A:

Q: To prevent the presence of air, noble gases are placed over highly reactive to act as inert…

A: The partial pressure of a gas in a mixture of gases is equal to the total pressure multiplied by the…

Q: When copper is heated with an excess of sulfur, Cu 2 S is formed. How many grams of Cu 2 S could be…

A:

Q: A combustion analysis is performed on a compound that contains only C and H. The analysis produces…

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".