How many molecules of silicon tetrahydride are present in 3.82 grams of the substance

Q: How many moles of nitrogen dioxide are present in 3.36 × 10ª molecules of this compound.

A: Given: Number of molecules=3.36×1021 To find: Number of moles Formula: where NA is the Avogadro…

Q: How many Mg2+ ions are present in 0.500 g of magnesium phosphate?

A: Magnesium phosphate = Mg3(PO4)2 Molar mass(MM) = 262  g Mass of Mg3(PO4)2 = 0.500 g Moles of…

Q: How many molecules are in sample? 85.26 g CCl4

A:

Q: ow many moles of atoms are contained in 19.2 g of NaOH

A: Given that: Mass of sodium hydroxide = 19.2 g To find: Moles of sodium hydroxide =?

Q: How many moles of NaCl are present in 100 g?

A:

Q: How many atoms are present in 58.93 g of cobalt? atoms

A: 1.  No.of moles = given mass / molecular mass  Molecular mass of Co = 58.93 g/mol   2. 1 mol = 6.022…

Q: What is the mass of 1 mol of molecules of each compound? (a) CO2 (b) CH2Cl2 (c) C12H22O11 (d) SO2

A: Since you have posted multiple subparts the answer for first three subparts are given below. Kindly…

Q: Freon- 12 (CCI2F2) is used as a refrigerant in air conditioners and as a propellant in aerosol cans.…

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Q: How many molecules are in sample? 22.1 g O2

A: 1 molecular mass of gas contains 1 mole molecules for oxygen. Oxygen has 32 g molecular mass. Number…

Q: Calculate the number of atoms in 12.45 grams of iron. 1.342 x 1023atoms 1.342 x 1022toms 0.223 atoms…

A: Given information, Given mass of iron = 12.45 g Molar mass of iron = 55.845 g/mol Calculate : Number…

Q: How many atoms of Pb are present in 254 grams Pb?

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: monium phosphate (NH4)3PO4 contains 0.104 mol of nitrogen atoms. The number of oxygen atoms in a…

A:

Q: How many GRAMS of potassium nitrite are present in 3.81 moles of this compound ? grams.  How many…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: How many moles of ammonium ions (NH_4^+) are in 2.5 mol of ammonium sulfate(NH_4)_2SO_4 A. 2 B 2.5…

A: Please find the solution below:

Q: One bottle of pain reliever ibuprofen (C13H1802) contains 500. tablets and one tablet contains 0.200…

A: Avogadro's Number : Avogadro’s number has been defined as the number of molecules in one mole of any…

Q: How many grams of carbon dioxide contain 3.79 × 10 23 molecules carbon dioxide?

A: USING THE MOLE CONCEPT. Molar mass of co is 28g

Q: Calculate the following: The number of molecules in 2 moles of AgCl The number of molecules in 2…

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Q: snowflake contains 1.9 X 10¹⁸ molecules of water. How many moles of water does it contain?

A: In International system of units, there are seven basic units which helps to calculate different…

Q: Oxygen makes up 46.7 % by mass of the Earth's crust. How many grams of oxygen are present if a…

A: Percent by mass = (mass of given component/total mass of sample) × 100%

Q: How many molecules of CH4 are present in 32.0 g CH4

A: Number of moles = mass / molar mass

Q: How many moles of ions are created from moles of CaCl2

A: when CaCl2 dissociate it gives one Ca+2 and 2Cl- ions. So that One mole of calcium chloride gives…

Q: What number of atoms of nitrogen are present in 8.54 g of the following? dinitrogen tetroxide

A: Number of molecules of dinitrogen tetroxide (N2O4):

Q: how many molecules are in 53.3 moles of co2

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: How many moles of (NH4)3PO4 are contained in 0.917 g of this compound?

A: Given that: Mass of (NH4)3PO4 = 0.917g Moles of (NH4)3PO4 = ?

Q: What is the relationship between the mass of a compound and the number of moles it represents?

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Q: How many total atoms are in 0.770 0g of P2O5?

A: Calculate the moles of P2O5  Moles = grams / molar mass

Q: A compound is found to contain 58.80 % xenon , 7.166 % oxygen , and 34.04 % fluorine by mass. To…

A: a) The percentage of each element present in the compound is: Molar mass of each element is:…

Q: how many atoms are contained in 2.22 mol O2

A: Given information is as follows: The number of moles of oxygen O2=2.22 mol As we know that 1 mol of…

Q: Calculate the number of moles of Cl atoms in 2.41×1024 formula units of magnesium chloride, MgCl2

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: A compound contains 12.8% carbon, 2.1% Hydrogen, and 85.1% bromine. Calculate the empirical formula…

A: Since the compound is having only carbon, hydrogen and bromine. Hence the empirical formula of the…

Q: How many molecules of NO are in a 22.5 g sample of the compound?

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Q: How many atoms of carbon are present in 34. 5 g caffeine, Cg H10N4O2 ? A 1.08 x 1024 B 8.57 x 1023…

A: given, the weight of caffeine = 34.5g

Q: A chemical compound has a molar mass of 136.63 g/mol. How much would 2.46x 1022 molecules of this…

A: We know that,                1mole=6.023 x 10^23 molecules Also we knows,     1mole=molar mass of…

Q: How many molecules are in sample? 119.78 g C4H10

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Q: The number of water molecules in 2.3 mg of water is

A:

Q: Calculate the number of moles each elements/ compound contain. 1. 13g of C 2. 67g of NaBr 3. 45g of…

A: The moles of the substance can be calculated as follows: Moles of substance=Mass of the…

Q: Define the mole, molar mass, and Avagadro’s number   how to Calculate formula and molecular weights…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: How many moles of each element are present in two moles of the compound? a. CH3COOH b. Al(NO3)3

A: See answer below.

Q: How many formula units make up 32.4 g of magnesium chloride (MgCl2)?

A: Calculate the number of moles of magnesium chloride. Number of moles = Given massMolar massNumber of…

Q: How many moles of sulfur dichloride are present in  2.74 grams of this compound?…

A: The number of moles of sulfur dichloride present in 2.74 grams of compound is

Q: How many atoms are present in 478g of magnesium cyanide

A: The formula of  magnesium cyanide is Mg(CN)2  Since molar mass = sum of ( Atomic mass elements…

Q: How many CHCl3 molecules are there in 24.5 gg of CHCl3.

A: The molar mass of CHCl3 is 119.5 g/mol. That is 1 mole has 119.5 g. We know that one mole has…

Q: How many total atoms are in 0.940 g0.940 g of P2O5

A: Number of atoms, ions and molecules present on a given amount can be determined by “Mole Concept”.…

Q: Determine the number of molecules present in 0.13 g of CH4.

A: Given : Mass of CH4 = 0.13 g Molar mass of CH4 = Atomic mass of C + Atomic mass of H X 4 = 12 + 1 X…

Q: How many water molecules are in 23.7 g of water

A: Given,  mass of water = 23.7 grams Here, number of moles = mass of water / molar mass { molar mass…

Q: How many molecules are contained in a glass that holds 490 g of water? How many moles does that…

A: Given, water is contained in a glass. and amount of water is =490 gwe are asked to calculate, the…

Q: How many molecules are in sample?  6.5 g H2O

A: Since the molar mass of H2O is 18 and one mole of H2O contains Avogadro number of molecules, the…

Q: Calculate the number of molecules in 27.6 grams of glucose, C6H1206. 9.23 x 1022atoms 1.05 x 1023…

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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.