a) What is the mass, in grams, of 2.50 x 10-3 mol ofammonium phosphate?(b) How many moles of chloride ions are in 0.2550 g ofaluminum chloride?(c) What is the mass, in grams, of 7.70 x 1020 molecules ofcaffeine, C8H10N4O2?(d) What is the molar mass of cholesterol if 0.00105 mol hasa mass of 0.406 g?

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

A:

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: Pure iron, Fe, can be produced from an ore called hematite, Fe, O,, by reaction with carbon at high…

A: Given Reaction: 2Fe2O3 + 3C ---------> 4Fe + 3 CO2  Mass of Iron= 17 tons To Calculate: Mass of…

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: Consider the reaction 3X + 2Y → 5C + 4D With excess Y, how many moles of X are needed to produce…

A:

Q: Consider the reaction: ZnO(s) + H20(1) - Zn(OH)2(aq) Given an initial mass of 19.85 g Zno, an excess…

A: The given reaction is, ZnO (s) + H2O (l) →  Zn(OH)2 (aq) Given that: mass of ZnO = 19.85 g To find…

Q: What is the mass (in kg) of 6.89 x 1025 molecules of CO2?  The molar mass of CO2is 44.01 g/mol.

A:

Q: Methanol (CH3OH) burns in air according to the equation 2CH;OH + 30, → 2CO, + 4H,O If 229 g of…

A:

Q: 5.)  Calculate the mass in grams of 13.5 mol of A.) vinyl chloride C2H3Cl, the starting material…

A: One mole of any molecule corresponds to its moleculae weight. The moleculer weight corresponds to…

Q: For the chemical reaction, 2 KI + Pb(NO,), Pbl, + 2 KNO, what mass of lead(II) nitrate in grams is…

A: In a balanced chemical reaction, stoichiometry gives the relationship between the amount of…

Q: You perform a combustion analysis on a 255 mg sample of a substance that contains only C, H, and O,…

A: Given information: Mass of sample = 255 mg Mass of carbon dioxide = 561 mg Mass of water = 306 mg

Q: The molecular formula of allicin, the compound responsible for the characteristic smell of garlic,…

A:

Q: The fuel used in many disposable lighters is liquid butane, C4H10C4H10. Butane has a molecular…

A: The molar mass of butane is 58.1 g/mol. 1 mole of butane contains 6.023 × 1023 atoms and 1 mole of…

Q: if 9.3×10^25 molecules of CO2 are produced in a combustion reaction , what is the mass in kg of CO2…

A: Applying mole concept and avogadro number.

Q: Acrylic acid, used in the manufacture of acrylic plastics, has the composition 50.0%C, 5.6% H, and…

A: Given, percentage composition of C = 50.0 %            percentage composition of H = 5.6 %…

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: For many years the recovery of gold—that is, the separation of gold from other materials—involved…

A: a.

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

A: The solution is given below -

Q: Consider the reaction 3X + 2Y → 5C + 4D With excess Y, how many moles of X are needed to produce…

A:

Q: If 6.7 × 10²⁵ molecules of CO₂ are produced in a combustion reaction, what is the mass in kg of CO₂…

A: Given: The number of molecules of CO₂=6.7 × 10²⁵ molecules The moles of CO₂=(6.7 × 10²⁵ )÷ (6.022 x…

Q: Direct reaction of iodine (I2) and chlorine (Cl2) produces an iodine chloride, IxCly, a bright…

A: Empirical formula represents the smallest whole number ratio.

Q: Calculate the mass in grams of 2.688 mol of       a. chlorophyll, C55H72N4O5Mg, responsible for  the…

A:

Q: If 6.8 g of a hydrocarbon that is 83.2% C by mass is burned with O2 to make CO2 and H2O,  what mass…

A:

Q: A compound contains 1.65 x 10 23 atoms of carbon, 0.552 g of hydrogen and 4.39 g of oxygen, what is…

A: Given: 1.65*1023 atoms of carbon 0.552 g of hydrogen 4.39 g of oxygen

Q: How many molecules of CO2 are there in 98.3 grams?

A: 1 mole of any compound contains Avogadro number6.022×1023 of molecules.We have to find number of CO2…

Q: Direct reaction of iodine (I2) and chlorine (Cl2) produces an iodine chloride, I,Cly, a bright…

A: As per the given data we have Mass of Iodine=0.678g Mass of IxCly=1.246g Molar mass of…

Q: Consider the following reaction for formation of nitric acid from the pollutant nitrogen dioxide…

A:

Q: Calculate the following quantities:  a. mass, in grams, of 0.105 mol sucrose (C₁₂H₂₂O₁₁) b. moles of…

A: a. mass, in grams, of 0.105 mol sucrose (C₁₂H₂₂O₁₁) Given;

Q: The molecular weight of hemoglobin is about 68,000 amu. What is the mass in grams of a single…

A: The 1 amu or μ, atomic mass unit, is equivalent to 1.66×10-24 g.

Q: If 5.9 × 10²⁵ molecules of CO₂ are produced in a combustion reaction, what is the mass in kg of CO₂…

A: Given,           Molecules of CO2 = 5.9×1025 molecules

Q: The molecular formula of acetylsalicylic acid (aspirin), one of the most commonly used pain…

A:

Q: The fertilizer ammonium sulfate, (NH4)2SO4, is prepared by the rxn of ammonia with sulfuric acid.…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: If 5.1 kg of CO2 are produced during a combustion reaction, how many molecules of CO2 would be…

A: The number of moles of a substance is given as the mass of the substance upon its molar mass. The…

Q: If 6.3 × 10²⁵ molecules of CO₂ are produced in a combustion reaction, what is the mass in kg of CO₂…

A: We have given  Molecules of CO2 = 6.3 × 1025  We have to calculate  Mass of CO2 = ? Kg

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 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: (a) One molecule of the antibiotic penicillin G has a massof 5.342 x 10-21 g. What is the molar mass…

A:

Q: (a) What is the mass, in grams, of 4.62  1023 molecules of aspirin, C9H8O4?

A:

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: 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: Consider the reaction 3X + 2Y→ 5C + 4D With excess Y, how many moles of X are needed to produce…

A: Reaction:    3X  + 2Y  → 5C + 4D   According to the reaction: 4 mol of D is produced when = 3 mol of…

Q: Ethanol, used in alcoholic beverages, can be produced by the fermentation of sucrose, which is found…

A: We can solve the given questions by using unitary method.

Q: The molecular formula of acetylsalicylic acid (aspirin), one of the most commonly used pain…

A: The number of moles is the amount of a compound per its molar mass. The expression for number of…

Q: If 1.00 g mixture of CaCl2 and Na,CO3 are put in a beaker and 100 mL of warm water is added and…

A: The number of moles of substance is calculated by the mass of given substance divided by the molar…

Q: 2. How many grams of sodium sulfate can be produced when 120 g of sodium hydroxide reacts with…

A: 2)  The balanced chemical equation for the reaction of sodium hydroxide with sulfuric acid is,    2…

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: If 7.7*10^25 molecules of CO2 are produced in a combustion reaction, what is the mass in kg of CO2…

A: 6.022 ×1023 molecules are present in 1 mole of a compound So, no of moles in 7.7× 1025 molecules of…

Q: Consider the Haber-Bosch process for the synthesis of ammonia from its elements. Calculate 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.