What is the mass of 0.345 mole of Al2 (CO3)? How many individual ionic formula units or particles does this amount represents?

Q: How many atoms are in the substance NazPO4? 8 O 1 7

A: Substance is defined as the material, of which something is made. These may be defined as  physical…

Q: How many atoms of sulfur are in 279 g of Na₂S₂O₃ ?

A: Given , Mass = 279 g Molar mass of Na₂S₂O₃= 158.11 g/mol

Q: The compound(NH4)2 S2 O3, Which element is present in the largest percent by mass? A. N B. S C. O…

A:

Q: 7. How many molecules are there in 24.0 g of ethylene glycol, HO(CH)OH?

A: The number of moles is defined as the ratio of the mass of a substance to its molar mass. Number of…

Q: Which of the following is Avogadro's Number equal to? O1 mole U 6.02 x 10²23 O The number of…

A: Avogadro Number is also called avogadro's constant.

Q: How many moles of oxygen atoms are in two moles of Fe2(CrO4)3? O 24 O 12 1.445 x 1025 7.226 x 1024

A: In Fe2(CrO4)3, there are: 2 Fe atoms, 3 Cr atoms, 12 O atoms. So, In Fe2(CrO4)3, there are 2 moles…

Q: 1. What is the formula mass of Rbl? 212.3723 2. Calculate the number of molecules in 1.84 moles of…

A: Number of molecules can be calculated by the following formula Number of molecules=Given massMolar…

Q: How many carbon atoms are there in 9.50 g Na2C2O4?

A: It is known that 1 mole of a substance is equal to 6.022×1023 atoms. The given compound is…

Q: How many moles of silver atoms are there in 1.80 x 104 atoms of silver? O 3.30 x 103 moles O 3.00 x…

A: The given data contains, number of atoms = 1.80×1020.

Q: how many atoms of carbon are in a 312.5 mg sample of C^3H^8?

A: Avogadro's number gives the number of atom or particle present in 1 mole of any substance.

Q: If 10 magnesium(Mg) atoms and 10 chlorine(Cl) atoms were to bump into each other, coukd they combine…

A: If 10 atoms of magnesium and 10 atoms of chlorine bump into each other, they will combine to form a…

Q: 3.112 The carat is the unit of mass used by jewelers. One caratis exactly 200 mg. How many carbon…

A: One carat is equal to 200 mg. the amount of diamond is 2 carat. The mass of diamond from carat to g…

Q: How many atoms in total are there in one molecule of Mg(NO3)2?

A: In a molecular formula, symbols of all the constituting atoms are shown along with their numbers in…

Q: How many molecules are there in 122 grams of NO2?

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…

Q: What is the mass of 2.9 × 10^26 molecules of dinitrogen pentoxide, N2O5(g)?

A: Molecules of N2O5 = 2.9 x 1026

Q: how many hydrogen atoms are there in 80.0 g of phosphoric acid?

A:

Q: A student, Ken, is given a mixture containing two nitrate compoundsnitrate compounds. The mixture…

A:

Q: A grain of sand weighs 7.7 × 10−4 g. How many formula units of silicon dioxide, SiO2, are in one…

A: The mass of one formula unit of SiO2 = 60.08 g/mol

Q: A compound contains C, H and O. The compound is 49.31 % by mass carbon, 43.79 % by mass oxygen with…

A: The empirical formula of a chemical compound is the simplest whole number ratio of atoms present in…

Q: How many hydrogen atoms are in 0.1488 g of phosphoric acid, H3PO4?

A: Number of moles=Given massMolar massGiven mass of Phosphoric acid=0.1488 gMolar mass of Phosphoric…

Q: How many hydrogen atoms are in 0.1488 g of phosphoric acid , H3PO4?

A: Given : mass of H3PO4 = 0.1488 g Molar mass of H3PO4 = Atomic mass of H X 3 + Atomic mass of P +…

Q: Fluoride ion is added to drinking water to prevent tooth decay. What is the mass in grams of sodium…

A: Given Formula units = 1.19 × 1019

Q: How many atoms are in 4.81 mol of cobalt? 4.81 mol = %3D How many moles are in 5.90 x 1024 atoms of…

A:

Q: A sample of glucose, C6H12O6, contains 1.240×1021 carbon atoms. Part A: How many atoms of hydrogen…

A:

Q: 3. How many molecules are there in 24 moles of FeF3?

A: Given values are,  Moles of FeF3 = 24 mol

Q: How many molecules are there in 1.2 moles of Cu (NO3)2?

A:

Q: How many total atoms are in 0.360 g0.360 g of P2O5?

A: Molar mass of P2O5 is:

Q: Some of the formulas could be either molecular or empirical formulas; however, some can only be…

A: The molecular formulas are:

Q: Calculate the number of particles in each of the following. Part A. 0.146 mol carbon atoms, C.…

A:

Q: 5. How many formula units are there in 90.0 g of Mg(OH)2?

A: No of formula unit can be calculated by dividing the given weight and weight of one formula unit.

Q: Calculate the mass, in grams, of 402 atoms of lithium, Li

A: Number of moles = number of atoms/6.022 x 1023 atoms  Mass = moles x molar mass

Q: How many oxygen atoms are in 32 molecules of dinitrogen tetroxide, N₂O₄?

A: The molecular formula of the compound given is N2O4.

Q: What amount of oxygen, O2, (in moles) contains 1.8x1022 molecules? А. 0.0030 В. 0.030 С. 0.30 D. 3.0

A: Given that :- O2 contains 1.8 × 10²² molecules

Q: How many aluminum atoms are in 25.0 grams of aluminum oxide, Al2O3?

A: The formula of the given compound is Al2O3. One mole of Al2O3 contains two moles of Al atoms.

Q: How many oxygen atoms are in 28 molecules of dinitrogen tetroxide, N₂O₄?

A: The answer to the following question can be calculated as -

Q: calculate the mass in grams of each of the following samples. 10,000,000,000 nitrogen molecules(N2)

A: Here we are asked to calculate the mass in grams of 10,000,000,000 =10×109 nitrogen molecules(N2)

Q: Calculate the molar mass for each of the following compounds: CH₂ g/mol (a) cyclopropane, CH₂ Molar…

A:

Q: phosphorus atoms

A:

Q: How many total ions are there in one formula unit of Al2(CO3)3?

A: Compound is a chemical species which is composed of more than than one elements. For example water…

Q: How many molecules, formula units or atoms are in 68.55 g of Sr(ClO4)2?

A: 1 mole of any compound contain Avogadro's number6.022×1023 molecules moles=given massmolar mass…

Q: How many moles of oxygen atoms are there in 3.95x1024 molecules of dinitrogen tetroxide (N2O4)?

A: In the dinitrogen tetroxide molecule, the stoichiometric ratio of nitrogen to oxygen is 2:4

Q: 2.845 x 1012 potassium ions equals how many moles of potassium ions?

A: 1 mol of potassium ions equal 6.022 ×1023ions    16.022×1023moles of potassium ions equal 1 ion

Q: formula units

A:

Q: A compound has a formula of P4O6. What is the weight of one mole of this compound in grams? How…

A:

Q: How many total atoms are there in 62.3 g62.3 g of carbon dioxide (CO2CO2)?

A: The number of moles of carbon dioxide is calculated as,

Q: How many molecules are there in 31.8 moles of water? O 1.91 x 1022 molecules O 1.91 x 1025 molecules…

A:

Q: Some formulas could be either molecular or empirical formulas; however, some can only be molecular…

A: Empirical formula is the formula of a compound having the simplest whole number ratio of elements.…

Q: 4. How many molecules are in 2.5 mole H,O?

A: Any  1 mol of substance  always contains avogadro number of molecules.

Q: A metal (M) forms a compound with the formula MCl3. If the compound contains 65.57 % Cl by mass,…

A: Assume 100 g of the compound is present. This turns percent into mass.Given 65.67 % of chlorine by…

Q: The indigo dye used to color blue jeans has the formula C6H1ON2O2. How many molecules of indigo are…

A: Given :- amount of C6H10N2O2 = 50.0 g  To calculate :- total number of C6H10N2O2 molecules

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.