A chloride of silicon contains 79.1 mass % Cl.   (a) What is the empirical formula of the chloride?  (b) If the molar mass is 269 g/mol, what is the molecular formula

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

A: The given reaction is : 2NaI(aq) + Cl2(g)→I2(g) +2NaCl(aq) Mass of I2 produced = 23.6 g

Q: What is the molar mass (g/mole) of cream of tartar (KHC4H4O6)?

A: The chemical formula of cream of tartar is KC4H5O6. To determine its molar mass, need to add the…

Q: What mass (in g) of iron (Fe, molar mass = 55.85 g∙mol–1) is needed to experimentally produce 50.0 g…

A: First we need a balanced reaction equation: 4 Fe + 3 O2 →2 Fe2O3 Next, since 50.0 grams of iron(III)…

Q: The composition of the acid, used in the manufacture of nylon, is 49.3% C, 43.8% O, and 6.9% H (by…

A: Given Percentage of C= 49.3% C, Percentage of O=43.8% O, Percentage of H= 6.9% H (by mass) the…

Q: What is the molar mass of Ba(NO3)2?

A: Molar mass of any compound is given by  Molar mass = sum of Atomic mass of each atom present in the…

Q: For the reaction C + 2H2 → CH4, how many moles of hydrogen are needed to make  182 grams of methane,…

A: Here a chemical reaction is given that is  C + 2H2 → CH4. Now, we have to calculate how many moles…

Q: A hydrate of formula M2EO3•XH2O (where M is a metal, E is a non-metal, and x is a whole number) has…

A: • Molar mass of oxygen = 16 g/mole                                     (0)• Formula weight of M2E…

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: What mass, in grams, of sodium carbonate is required for complete reaction wit 8.35g of nitric acid…

A: In Balanced chemical equation number of atoms of each species are equal on both reactant and…

Q: What is the mass percentage of sulfur in butyl mercaptan (C,H10S

A: Given: The compound is butyl mercaptan i.e. C4H10S. Assuming 1 mole of C4H10S.

Q: The elemental composition of the welding gas acetylene (C2H2) is 92.24% C and 7.76% H by mass. What…

A: Since from the formula of acetylene, we can say that the number of atoms of C and H are same in it.…

Q: Hydrogen peroxide breaks down, releasing oxygen, in the following reaction: 2H,0,(aq) – 2H,O(1) +…

A: The given reaction is as follows: 2H2O2(aq) →2H2O(l) +O2(g) The moles of O2 produced = 4.10 mol The…

Q: perchlorate is a colorless , crystalline substance whose composition is 28.2 % K, 25.6 % Cl, and…

A: Given, Element %  of  K = 28.2 % = 28.2 g Element %  of  Cl = 25.6 % = 25.6 g Element %  of  O =…

Q: How many grams of sulfur (S) are needed to react completely with 45.0 g of aluminum (Al) in the…

A: Aluminum reacts with sulfur to form aluminum sulfide. The equation for the balanced chemical…

Q: What is the molar mass of Ca(NO3)2?

A: Given that : We have to calculate the molar mass of Ca(NO3)2. Calcium nitrate contains 1 atom of…

Q: A chemist requires 0.682 mol Na, CO, for a reaction. How many grams does this correspond to? mass: g…

A: Givenmoles of Na2CO3 =0.682 mol

Q: A chemist requires 0.589 mol Na, CO, for a reaction. How many grams does this correspond to? mass: g…

A: No.  of moles of sodium carbonate (Na2CO3) = 0.589 mol We know,  Number of moles = Given mass…

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: What's the percentage by mass of Cl in MgCl2 if it  is 24.6% Mg by mass?

A: Intrdouction : %age by mass of Mg = 24.6%

Q: What is the mass (in g) of 0.953 mol of ethanol, CH3CH₂OH? The molar mass of ethanol is 46.07…

A: Given : molar mass = 46.07 g/mol                          Mole = 0.953 mol

Q: The empirical formula of codeine is C18H21NO3. If the molar mass of codeine is 299 g/mol, what is…

A: In this question empirical formula of codeine is given and we want to determine the Molecular…

Q: What is the mass percentage of C in morphine, C1,H19NO,?

A: The molar mass of morphine is 285.34 g⋅mol−1.

Q: What is the mass percent of chromium in Fe2(CrO4)3, which has a molar mass if 460 g/mol

A: Mass percent is the mass of the element or solute divided by the mass of the compound or solute. The…

Q: Potassium bromate is a colorless , crystalline substance whose composition is 23.4 % K , 47.8 % Br ,…

A: An empirical formula gives the smallest whole number ratio of different elements present in the…

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: Heating limestone and other soil samples revealed calcium oxide and carbon dioxide. The balanced…

Q: What is the mass in g of 100 molecules of CH2O?

A:

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: The mass of the sample of limestone is = 2.631 g The mass of carbon dioxide gas produced by the…

Q: When gaseous nitrogen and gaseous hydrogen are reacted at high temperatures in the presence of a…

A: Given Reaction (at high Temperature and in presence of Catalyst) is,  N2(g) + 3H2(g) -------> 2…

Q: The percent composition by mass of an unknown chlorinated hydrocarbon was found to be 37.83%C,…

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: In air, nitric oxide gas reacts with oxygen to produce nitrogen dioxide, which appears brown in…

A: The amount of Nitrogen dioxide formed can be calculated as follows

Q: A chemist requires 0.298 mol Na, CO, for a reaction. How many grams does this correspond to? mass: g…

A: 1 mole = 6.022×1023 (Avogadro's number)  The mass of one mole of molecules of a substance is known…

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: We know that Molar mass of CO2=44g/mol Mass of CO2=2.14g Moles of CO2=MassMolar mass…

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: What is the molecular formula of a compound with empirical formula CH2O and a molar mass of 60.0…

A: Welcome to bartleby !  Introduction : We have to tell molecular formula of compound .

Q: In the recipe for mayonnaise, the phospholipids in the egg yolk act as emulsifiers. If you assume…

A: Given that : Weight of one egg yolk = 10 g 33% of egg yolk is fat, so, 33% of 10 g = 3.3 grams

Q: What is the mass, in grams, of 9.49×1024 molecules of methanol (CH3OH)?

A: Please find the attached images for the answer

Q: The chemical formula of tyrosine (a building block of proteins) is C9H11NO3. Given that the formula…

A: Since %(m/m) composition means the weight % i.e weight of component X 100/ total weight of compound…

Q: 5.2C23 molecules of hand sanitizer, ethanol (C,I IO ) is how many moles?

A: Given, Molecules of Ethanol = 23 General formula is: 1 mole has 6.023 x 1023 molecules.

Q: The chemical formula for the anticoagulant heparin is C₁₂H₁₉NO₂₀S₃. What is the mass in grams of…

A: The mass of a substance is calculated as follows,                  Mass = No. of moles × Molar mass…

Q: What is the mass percentage of C in CH,CH,OH?

A:

Q: A sample of limestone and other soil materials was heated, and the limestone decomposed to give…

A: CaCO3(s) --> CaO(s)+ CO2(g) Mass of lime stone containing sample = 3.043g CO2 produced = 1.25g

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…

Q: 1)_C;H; +, _ 02 >_CO co, +_H;0 62.11g of oxygen, makes how many moles of carbon dioxide?

A: Given that : Mass of O2 = 62.11 g Molar mass of O2 is 32 g/mol So, Number of moles of O2=Given…

Q: The percent by mass of silver in Ag,CO3 is %.

A: Molecular mass of Ag2CO3 = 2*atomic mass of Silver + atomic mass of Carbon + 3*atomic mass of Oxygen…

Q: For the reaction C + 2H2 → CH4, how many moles of hydrogen are needed to make  103.9 grams of…

A: In chemistry, one mole can be defined as quantity containing particles equivalent to 6.023 × 1023…

Q: The average nicotine (C 10H 14N 2, molar mass 162.3 g/mol) content of a Camel cigarette is 1.93 mg.…

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass of the…

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.