. Calculate the number of moles in each of the following masses: a. 3.00 g of boron tribromide, BBr3 ans: 0.0120 mol BBr3 b. 0.472 g of sodium fluoride, NaF ans: 0.0112 mol NaF c. 7.50  102 g of methanol, CH3OH ans: 23.4 mol CH3OH d. 50.0 g of calcium chlorate, Ca(ClO3)2 ans: 0.242 mol Ca(ClO3)2

Q: What is the mass in grams of 0.76 mol of potassium chloride? Group of answer choices a, 60 b, 99.4…

A: We'll answer the first question since the exact one wasn't specified. Please submit a new question…

Q: How many moles of propylene (C3H) are in 25.0 of the substance? g

A: Moles = mass/molar mass

Q: Mass of H2C2O4•2H2O = 1.3245 grams  Molar Mass of H2C2O4•2H2O = 126.07 how many moles of…

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

Q: How many grams of CuCl are formed from the complete reaction of0.814 mol Cu? 2 Cu + Cl2 --> 2CuCl

A:

Q: Suppose you have two samples that are equal in weight, 24.824.8 g VV and 24.824.8 g Cr2O3Cr2O3.…

A: Given, Mass of V = 24.8g. Mass of Cr2O3 = 24.8g.

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: Period: Name: 1. Explain what % yield is. Use an everyday example.

A:

Q: 14. How many grams of H,O could be formed by the reaction of 16.0 g of CH, with 48.0 g of O,? CH, +…

A: The amount of water produced by combustion of methane is calculated as,

Q: Balance each equation. a. Ni( s) + HCl( aq) NiCl 2( aq) + H 2( g) b. CH 4( g) + Cl 2( g) CCl 4( g) +…

A: Since you are posted with multiple sub-parts. As per the rule, I am answering the first three…

Q: How many sulphur atoms are contained in 30 g of Al2(S04)3 (Molar mass: 342.15 g/mol) ? OA 5.78 x…

A: Applying no. of moles  n= w/M  NA= 6.022E+23

Q: Use the following data and steps below to calculate the formula of the copper chloride hydrate.…

A: Given: Weight of empty aluminum pan      = 0.4661 g Weight of CuCl2. x H2O sample       = 0.8390 g…

Q: Suppose a 500. mL flask is filled with 0.60 mol of N₂ and 1.2 mol of NH,. This reaction becomes…

A: We have 0.5 L ( 500 mL ) flask, 0.60 mol of N2 , 1.2 mol of NH3, we have to fill ICE table.

Q: A 1.7500 g sample of a zinc compound ("ZnX") contains 0.8400 g of zinc. What is the molar mass of…

A: Given the mass of the unknown compound, ZnX = 1.7500 g Given the formula of the unknown compound is…

Q: 2. Kidney stones are made of minerals and salts forming hard deposits inside your kidneys. One type…

A:

Q: An antifungal molecule has a molar mass of 2448 g/mol.  a. How many moles are there in a 1.567g…

A: The given weight of sample is 1.567 g. The given molar mass is 2448 g/mol.

Q: a. Two compounds have the same composition: 92.25% C and 7.75% H. Obtain the empirical formula…

A: Empirical formula is the simplest formula of a compound where atoms of participating elements are…

Q: 4 NH3 + 6 NO → 5 N2 + 6 H2O The reaction is carried out with 34.7 g of NH3 and 29.2 g of NO. a.…

A:

Q: A compound containing only hydrogen and carbon is burned in excess O2(g) to produce a total mass of…

A: Given: Compound contains only C and H. Mass of 0.3 moles of compound = 34.243 g. The total mass of…

Q: CO2 has a molar mass of 44 grams per mole. 4.4 grams of CO2 is how many moles? A)  193.6 molecules…

A: mass of CO2 = 4.4 gmolar mass of CO2 = 44 g/molNumber of molecules of CO2 = ?Number of moles of CO2…

Q: Consider the reaction, 3CCI4+2S6F3>3CCI2F2 + 2S6C13 if 150.0 g of CCI4 (153.8 g/mol) is mixed with…

A:

Q: What amount in moles is 4.77x10^25 (to the power of 25) molecules?? 1.2.87x10^49 mol 2.79.2 mol…

A: Molecules = 4.77 x 1025

Q: A chemist weighs 50.0 grams of solid NaOH. a) How many moles of NaOH are in the sample? [ Select ]…

A:

Q: For the following reactions, determine the value of x (in mol). a. 4 C+ S8 → 4 CS2 mol 1.9 mol Sg…

A:

Q: What number of molecules (or formula units) are present in 1.80 g of each of the following…

A: Please find your solution below : Avogadro's number is the number of atoms, molecules, ions, formula…

Q: 2. Calculate number of molecules in 2.33 g CH6. molar masses: C = 12.01 g/ mole and H = 1.008 g/…

A: Given: Mass of C6H6 = 2.33 g.

Q: 16. A metal has the mass of 12.00 g and 5.850 x 1022 atoms. Calculate molar mass of the metal. O…

A:

Q: 2. Consider a hydrated compound copper(II) sulfate pentahydrate, CuSO, 5H20: a. Calculate the…

A:

Q: Starting with 0.525 mol Li and 0.210 mol SOCI₂, determine the number of moles of each reactant and…

A: Recall the given reaction,                            4 Li + 2 SOCl2 → 4 LiCl + S + SO2Initially…

Q: percent composition

A:

Q: empirical

A:

Q: 17. Atmospheric sulfur dioxide is the main compound that causes acid rain. It reacts with water and…

A: The given question involves the reaction of atmospheric sulfur dioxide with water and oxygen to form…

Q: What is the mass of 8.00 molesmoles of magnesium chloride, MgCl2MgCl2? Express your answer with the…

A:

Q: a. Calculate the molar mass of Al2O3. Molar mass = g/mol b. Calculate the molar mass of Al(NOS)3.…

A: a) Molar mass of Al2O3 = ?  b) Molar mass of Al(NO3)3 = ?

Q: Which of the following is true about finding the molar mass of potassium sulfate, K₂SO4? A. The…

A: The molar mass of a compound can be calculated by adding the standard atomic masses (in g/mol) of…

Q: . How many moles of Al2O3 can be produced from the reaction of 10.0 g of Al and 19.0 g of O2? A.…

A: The objective of this question is to determine the number of moles of Al2O3 that can be produced…

Q: Calculate the molar mass of the following substances. Molar Mass = b. Mg3(PO4)2 Molar Mass = c.…

A: Molar mass of given compounds can be calculated as:

Q: Balance each of the chemical equations. Fe(s) + 02(g) → Fe203(s) _Na3PO4(aq) _NH4NO3(s) – а. b.…

A: In a balanced chemical reaction the number of atoms of each element is same on both the reactants…

Q: Calculate the number of atoms in a 8.20 x 10³ g sample of sulfur. number of atoms: A reaction…

A:

Q: A flask contains 0.200 mol of liquid bromine. Br2. Determine the number of bromine molecules present…

A:

Q: Calculate the mass, in grams, of 322 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

A:

Q: II. Find the percentage composition of the given compounds. a. Mg (OH)2 onto 80.29 = 60 umo $0.8 =…

A:

Q: A compound is composed of the elements, carbon, hydrogen, and oxygen only. Combustion of the…

A:

Q: Aqueous hydrochloric acid (HCI) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium…

A: Please see the attached image for the solution. Limting reactant is the reactant that is completely…

Q: 3. A compound's moleeular mass is 480 g/mol. Its percentage composition is 60% sulfur and 40%…

A:

Q: C3H8(g) +     O2(g)  ------>   CO2(g)   +     H2O(g)       a.  Balance the reaction:        b.…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

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.