how many moles of S are needed to combine with 0.225 mol Al to give Al2S3?

Q: What is the percent composition of Br in CuBr3?

A: By calculating Molar mass of each component and total compound , we can calculate percentage…

Q: A leak in the air conditioning system of an older car releases55 g of CF2Cl2 per month. How much Cl…

A: The given data contains, mass of CF2Cl2 = 55 g.

Q: How many moles of water are present in 75.0 g of H20?

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: What is the boron mass percent composition in (CH3)3OBF4?

A: • We need to calculate the mass percent of boron (B) in (CH3)3OBF4

Q: Which has the larger percent by mass of sulfur, H 2 S O 3 or H 2 S 2 O 8 ?

A: Molar mass of H2SO3=? Molar mass of H2SO3=(Number of H-atom×mass of H-atom)+ +(Number of…

Q: Aluminum carbide (Al4C3) reacts with water to produce gaseous methane (CH4). Calculate the mass of…

A: Record the given data, Weight of aluminum carbide = 63.2 g The balanced equation for the reaction…

Q: Consider a 6.38 mol sample of C5H8. How many atoms of H would be in this sample?

A:

Q: A theoretical molecule exists as a hydrate (has non-covalently bound waters of hydration) with a…

A:

Q: Acetaminophen, C8H9NO2, is a covalent compound and the active ingredient in several popular…

A: The formula of the compound Acetaminophen is C8H9NO2. Hence each molecule of C8H9NO2 contains 1) 8…

Q: Calculate the number of moles of Magnesium ions, (Mg+2), in 80 g of Magnesium sulfate (MgSO4).

A: 1 mole = 6.022×1023 = Avogadro's number The number of moles of a substance is given by the formula…

Q: mass

A:

Q: . Calculate the molar mass of the following compounds: a. H2O b. CCl2F2 c. N2O

A: Mole concept: The number of molecules present in the one-mole sample is equal to the Avogadro number…

Q: The thermochemical equation for the reaction of nitrogen with fluorine to form nitrogen trifluoride…

A: The change of enthalpy of the reaction has to be given, Amount of nitrogen=2.417 g. The atomic…

Q: C2H;OH(1)+ O2(g) → CO2(g)+ _ H2O(1) - What is the mole ratio of ethanol to oxygen in the balanced…

A: Balance Chemical equation means number of atoms or ions should be equal in both side (reactant and…

Q: 12KOH + 6I2 -> 10KI + 2KIO3 + 6H2O   calculate the number of moles of KOH to produce potassium…

A: Given 12KOH + 6I2 -> 10KI + 2KIO3 + 6H2O calculate the number of moles of KOH to produce…

Q: 30 How many grams of Mo(SO3)3 are in 1.60x1023 molecules of Mo(SO3)3?

A: Given, molecules of Mo(SO3)3 = 1.60*1023 Grams of Mo(SO3)3  = ? One mole on any substance contains…

Q: How many coulombs of charge are necessary to produce 341 g of Al from Al³+ (aq)? (F= 96,500 C/mol) 1…

A:

Q: Which molecule has a larger molar mass? CH3OH or CO2

A: The molar mass (MM) of a compound is computed using the following expression: MM=∑niMi where ni and…

Q: What mass of N2S4is formed when 10.00 g of N2 is heated with 20.0 g S8?

A: Given,Mass of N2 = 10.00 gMass of S8 = 20.0 gThe moles of N2 and S8 can be calculated as:

Q: 1. How many moles of sulfur will you need to react with 1.42 moles of iron? Given the following…

A:

Q: What’s the molor mass of CaF2

A:

Q: What is the mass percent of carbon in NaC2h3O2= 82.03 g/ mol

A: Given                                                                           mass of NaC2h3O2=…

Q: Determine the molar mass for ethanol, C2H6O.

A: Here we are asked to determine the molar mass of ethanol C2H2O

Q: The density of water is 1.00 g/mL at 4°C.How many water molecules are present in 2.56 mL of water at…

A: The density of a substance is the mass of the substance upon volume. The number of molecules is the…

Q: How many grams of HF are needed to produce 9.40 g of H2?

A:

Q: What’s the molar mass of SF6

A:

Q: How many grams of NaCl is needed to produce 6.42g Na?

A: using mole concept easily determination of moles of products used and moles of products formed is…

Q: What mass of oxygen would be in a 124.56g sample of sodium thiosulfate Na2S2O3?

A: Given that:  Mass of Na2S2O3 = 124.56g  Molar mass of Na = 23g/mol Molar mass of S = 32g/mol Molar…

Q: Determine the number of moles in 8.73 x 1023 formula units of CaCl2.

A: We can used the equation for calculating the moles of given formula unit.  Equation is :  Number of…

Q: What mass of oxygen would be required to convert 4.00 g of sulfur into sulfur trioxide (SO3)?

A: Given, amount of sulfur =4.00 gramwe are asked to calculate the mass of oxygen would be required…

Q: Which is the greatest mass of SO2 that can be produced from 15 mol of Cu2S? 480g O 961g O 1920g O…

A: Given Reaction,2 C42 S + 3O2 → 2 C42O + 2 SO2Moles of C42S = 15 molMass of SO2 produced = ?

Q: 1.2.How many moles of sodium bicarbonate are present in the 5.00 g?

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

Q: what is the mass percent for O in so3

A:

Q: How many grams of sodium oxide (Na2O) are produced from 3.55 g of Na?

A: The reaction for the formation of sodium oxide can be expressed as,                         2 Na + O…

Q: What is the mass percent of hydrogen in the following compound? C4H8O4

A: C4H8O4 molecules contain 4 carbon, 8 Hydrogen and 4 oxygen atoms.   The mass of 1 mole of C4H8O4 is…

Q: Calculate the number of moles in 6.60x1015 atoms of 14c.

A: A mole is defined as 6.02 × 1023 of some chemical unit, be it atoms, molecules, ions, or others. For…

Q: How many grams of H2 are needed to produce 11.02 g of NH3?

A: The balanced chemical equation for formation of ammonia is given by

Q: Calculate the following quantities: (a) number of H atoms in 0.585 mol C4H10

A: Moles of C4H10 given= 0.585 moles  To calculate : no. of H atoms in it.

Q: Calculate the number of H atoms in 0.350 mol of C6H12O6

A: 1 mole = 6.023*1023 number of atoms /molecules

Q: how many moles of F are needed to form 1.4 moles of XeF6?

A: The molecular formula of the compound is given as XeF6  hence we can say that the number of F atoms…

Q: 1. How many moles of hydrogen gas (H2) would contain 2.4 x 1024 hydrogen atoms? а 2 b 5 C 3 d 4°

A:

Q: What is the number of moles of O atoms in 3.5x10^3 mol of Al2(SO4)3?

A: Every compound is made up of certain atoms. These atoms combine in a fix ratio to form compounds.

Q: Calculate the mass percent of H in C3H120.

A:

Q: What is the mass percent composition of (NHA257 Give answers in this order: 9%N. 96H, ES

A: The mass percentage composition of an element present in a compound can be found out by dividing the…

Q: 4. What mass of Cu(10,); can be formed from 0.5000g of Cuso, SH,0?

A:

Q: Calculate the number of moles in 6.85x1015 atoms of 3H.

A: It is known that one mole of a substance contains 6.022 × 1023 particles (atoms, molecules or…

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.