2. A 13.07g sample of an unknown compound is composed of 9.48 g of barium, 1.66g of carbon and 1.93 g of nitrogen. What is the empirical formula of this compound?

Q: analysis of a sample of a compound shows that 0.131 g H,  4.61 g CI and 8.32 g of O are present…

A:

Q: What is the difference between an empirical formula and a molecular formula?

A: The empirical and the molecular formulas are both a type of chemical formulas. An empirical formula…

Q: Combustion analysis was performed on 1.50 g of a compound containing C, H and N to yield 3.21 g of…

A: Given,  Mass of the compound = 1.50 g  Mass of CO2 = 3.21 g  Mass of H2O = 0.981 g  Empirical…

Q: What is the empirical formula of a compound thatcontains 10.52 g Ni, 4.38 g C, and 5.10 g N?

A:

Q: A particular ore of lead, galena, is 10.0% lead sulfide, PbS, and 90.0% impurities by weight. What…

A: we  need to calculate mass of Pb in the ore

Q: Mass of crucible and cover is 43.92 g. The mass of crucible, cover, and magnesium is 44.62g. Mass of…

A: Empirical formula is the chemical formula  which represents the simple ratio of atoms of constituent…

Q: A certain compound containing nitrogen and oxygen is found to have 1.75 g of N for every 1.00 g of…

A: Given: Weight of nitrogen = 1.75g Weight of oxygen = 1.00g

Q: Consider a sample of carbon tetrafluoride that contains 1.01 × 10²⁴ atoms of fluorine. What quantity…

A:

Q: A compound has the empirical formula C3H2 and has a molar mass of 228.3 g/mol. What is the molecular…

A: The empirical formula of the compound is = C3H2 The molar mass of the compound is = 228.3 g/mol We…

Q: What is the difference between an empirical formula and a molecular formula? Can they ever be the…

A: The empirical and the molecular formulas are both a type of chemical formulas. An empirical formula…

Q: An unknown compound is processed using elemental analysis and found to contain 117.4 g of platinum,…

A: We know that,  Number of mole = given mass/molar mass Atomic mass of platinum =195.084 g

Q: What is the empirical formula of the compound?

A: Number of moles = mass/molar mass Given:- mass of O = 5.07 g  mass of Cu = 40.27 g Molar mass of Cu…

Q: A sample of a compound contains 19.97g Ti and 13.37g O. Determine the empirical formula of the…

A: Applying concept of determination of empirical formula of compounds.

Q: An analysis of a compound reveals that a 25.00 g sample contains 23.06 g of carbon (12.01 g/mole)…

A: The molecular formula of a compound is the formula which shows the true formula of its molecule. It…

Q: A 1.115-g sample of cobalt was heated with excess sulfur to give 1.722 g of cobalt sulfide. What is…

A: Mass of Co = 1.115 g Mass of S = mass of cobalt sulfide - mass of cobalt                 = 1.722 -…

Q: A 5.91 g unknown sample analyzed by elemental analysis revealed a composition of 37.51 % C. In…

A: Given A 5.91 g unknown sample analyzed by elemental analysis revealed a composition of 37.51 % C. In…

Q: A 170.00 g sample of an unidentified compound contains 29.84 g sodium, 67.49 g chromium, and 72.67 g…

A: Given :-  Mass of Na = 29.84 g  Mass of Cr = 67.49 g  Mass of O = 72.67 g  To be determined :-…

Q: A 10.724-g sample of an oxide of titanium was found to contain 7.143 g titanium, and the rest,…

A:

Q: A 57.00g sample is composed of 69.61% Barium, 6.093% Carbon, and 24.28% Oxygen. What is the…

A: Empirical Formula  of the compound is BaCO3

Q: Determine the empirical formula of a compound containing 2.76 g of silicon and 13.9 g of chlorine.

A: Given, mass of Si=2.76 g, molar mass=28 g mol-1 mass of Cl=13.9 g, ,molar mass=13.9 g , molar…

Q: 8. A 10.00 g sample of a compound that consists of carbon and hydrogen is found to consist of 7.99 g…

A:

Q: A new computer chip contains 4.71×1022 Si atoms. Determine the mass (in grams) of the silicon…

A: 1 mole of any substance contains avagadro number of atoms i.e.6.022×1023 atoms.  6.022×1023 atoms of…

Q: completely

A:

Q: 5.00 g of a compound containing nitrogen and oxygen was decomposed and 1.52 g of nitrogen was…

A: Given: Mass of compound = 5.00 g  Mass of Nitrogen produced=1.52 g  Molar mass of nitrogen = 28…

Q: A diamond contains 5.0x1021 atoms of carbon. What amount(moles) of carbon and what mass(grams) of…

A: No. of atoms of 'C' = 5.0×1021 atoms Calculation of no. of mol of 'C': n=No. of atoms6.022×1023…

Q: An oxide of mercury will thermally decompose when heated. A 0.204 gram sample of the mercury oxide…

A: Percentage of mercury present in the sample is: Percentage of oxygen present in the sample is:…

Q: 1.651 g of Silver is combined with 0.1224 g of oxygen. Find the empirical formula.

A: moles of silver combining = mass / atomic mass atomic mass of Ag = 108 g/mol Hence moles of Silver =…

Q: An unknown compound with a molar mass of 402.561 g/mol is made of 4.446 g of carbon, 1.741 g of…

A: To find the Molecule formula of given compund , first have to find the moles of carbon , Hydrogen…

Q: Analysis of a sample showed that it contained 68.3% lead, 10.6% sulfur, and 21.1% oxygen. What is…

A:

Q: A 2.87 g sample of carbon reacts with hydrogen to form 3.41 g of car fuel. What is the empirical…

A: Given Car Fuel mass= 3.41 g mass of carbon = 2.87 g By the law of definite proportions, Mass of…

Q: A compound contains carbon, hydrogen, and nitrogen as its only elements. A 9.353 g sample of the…

A: Given that the mass of C and H in a compound of mass 9.353 g is 5.217 g and 1.095 g respectively.

Q: An unknown sample with a total mass of 440.85 g contains carbon, hydrogen, and oxygen.  If the…

A: Given: The total mass of the unknown sample = 440.85 g The mass of carbon = 300.25 g The mass of…

Q: Platinum forms two compounds with chlorine. One contains 26.7% Cl by mass and the other 42.1% Cl by…

A: In chemistry, the empirical formula of a chemical compound is the simplest whole number ratio of…

Q: In one of your experiments, you made magnesium oxide by burning magnesium in the air. How much Mg is…

A: Magnesium reacts with oxygen to make a compound called magnesium oxide. The bright light results…

Q: A 100.00 g sample of the compound XCl3 is decomposed to produce 90.77 g of the element chlorine.…

A: The reaction taking place will be  2 XCl3 -----> X2 + 3 Cl2  Hence moles of Cl2 formed / moles of…

Q: Analysis of a 20.0-gram sample of a compound containing only calcium and bromine indicates that 4.00…

A: given  mass of sample = 20 g mass of calcium = 4 g

Q: How many atoms of H are present in 37.6 g of NH3?

A: Given, Mass of NH3 = 37.6 g Molar mass of NH3 = 17.031 g/mol

Q: A 2.00 g sample of methamphetamine was found to contain 1.61 g C, 0.203 g H, and 0.188 g N. What is…

A: Given information:Mass of methamphetamine = 2.00 gMass of carbon = 1.61 gMass of hydrogen = 0.203…

Q: A sample an unknown compound contains 49.34 g calcium, 25.43 g phosphorus, and 52.54 g oxygen.  What…

A: Given,      Mass of Calcium =  49.34 g     Mass of Phosphorous = 25.43 g     Mass of Oxygen  = 52.54…

Q: 0.172 g of Mn was heated in the presence of oxygen to make 0.272 g of MnxOy.  Based on this data,…

A:

Q: Elemental analysis of an unknown compound shows it to contain 1.314574 g of hydrogen, 13.466853 g of…

A: Molar Mass of Phosphorus = 30.97 g/mol Molar mass of Hydrogen 1.00 g/mol Molar mass of Oxygen = 32…

Q: A 13.65 g sample of a compound contains 8.71 g of iron, Fe, 1.61 g of phosphorus, P, and oxygen, O.…

A: the simplest whole  ratio to show atom of each element in a compound is shown by empirical formula

Q: A 1.271 g sample of aluminum metal is heated in a chlorine gas atmosphere, and the mass of aluminum…

A: We can calculate the mass of the chlorine from the mass of aluminium chloride and the mass of…

Q: A sample of a compound was found to contain 54 g of aluminum, 96 g of oxygen, and 6 g of hydrogen.…

A:

Q: What is the empirical formula of glucose?

A: An empirical formula represents the lowest whole number ratio of elements in a compound.The…

Q: 69. The compound adrenaline contains 56.79% C, 6.56% H, 28.37% O, and 8.28% N by mass. What is the…

A: Given,  Percentage of C = 56.79%  Percentage of H = 6.56%  Percentage of O = 28.37%  And  Percentage…

Q: 4. Explain why an empirical formula can represent many different molecules. 5. Explain why 1 mol of…

A: Moles are the bigger unit which is then converted to molecules and then to atoms

Q: A compound is composed of 0.7388 grams of mercury and 0.2612 grams of chlorine. What is the…

A:

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.