(b) The number of moles of potassium that contains 8.93 × 104 atoms. x 10 mol

Q: C. What is the mass (in grams) of 5.03 × 1022 molecules of CO2 molecules?

A: Number of molecules of any species is given by, => Number of molecules = moles X Avogadro's…

Q: What is the mass (in g) of 2.91 x 1028 atoms of Fe?

A: Given: Number of Fe atoms = 2.91 × 1028 atoms.

Q: What is the mass, in grams, of 9.84x1024 molecules of methanol (CH3OH)?

A: Given:Number of atoms = 9.84x1024 atoms.Molar mass of CH3OH = 32 g/mol.

Q: What is the mass, in grams, of 9.44 x 1024 molecules of methanol (CH,OH) ?

A:

Q: What is the mass in grams of 7.54 x 1025 molecules of Br2?

A:

Q: For the reaction C + 2H2 → CH4, how many moles of hydrogen are needed to make  182 grams of methane,…

A: Here a chemical reaction is given that is  C + 2H2 → CH4. Now, we have to calculate how many moles…

Q: What is the mass, in grams, of 9.94 x 104 molecules of methanol (CH, OH) ?

A: Given molecules of methanol is 9.94 x 1024 It is known that 1 mole of  methanol has 6.023 × 1023…

Q: Which of the following conversion factors is correctly set up to determine the number of moles of…

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

Q: What is the mass (in grams) of 1.25 x 10^22 molecules of SeO2?

A: 1 mole of any species contains Avogadro's number i.e. 6.023 × 1023 of its constituent particles…

Q: What is the mass in grams of 2.6 x 1025 molecules of CuO?

A: Answer:- This question is answered by using the simple concept of calculation of mass using the…

Q: The reaction between potassium chlorate and red phosphorus takes place when you strike a match on a…

A:

Q: What mass of iron (III) oxide is produced when 3.88 X 1025 grams of oxygen reacts with excess…

A:

Q: What would be the mass, in grams, of an NO2 sample in which 100 billion (1.00 X 10 11) moleculesare…

A: The number of molecules of NO2 sample is 1.00×1011.   The formula to calculate the number of…

Q: Calculate the mass (in g) of 1.2 x 1024 atoms of molybdenum, Mo.

A: using mole concept , easily determination of atoms , molecules and ions possible.

Q: What is the mass in grams of 7.3 x 1024 molecules of lactic acid (C3H6O3), the compound responsible…

A: Given;

Q: Determined the mass percentage of hydrogen in CH4 and C4H10?

A: Molar mass is defined as average mass of atoms present in the chemical formula. It is the sum of the…

Q: If 8.9 x 1025 molecules of CO, are produced in a combustion reaction, what is the mass in kg of CO,…

A: Given:  Number of molecules of carbon dioxide =8.9 x 1025Mass of carbon dioxide produced has to be…

Q: What is the molar mass in g/mol of Al2(COO)3?

A: The formula of aluminum carbonate can be written as - Al2(CO3)3

Q: What is the mass percentage of O in C3H8O2?

A:

Q: What is the mass in grams of 7.94 x 1015 molecules of CS,?

A:

Q: What is the molar mass of the molecule Mg(OH)2

A: The molar mass of a molecule can be calculated by taking the sum of the atomic molar mass of all the…

Q: How do i Calculate the mass, in grams, of 422 atoms of potassium, K (1 mol of K has a mass of 39.10…

A: 1 Mole of any substance contain 6.023 x 1023 entities  (entities = atoms/ions/molecule) 1 mole of…

Q: How many atoms would there be in 6.18x106 g of chlorine, Cl2?

A: Given, Mass of chlorine gas (Cl2) = 6.18 × 106 g Number of atoms are there in 6.18 × 106 g of…

Q: What is the mass, in grams, of 9.81 x 1024 molecules of methanol (CH,OH) ? mass:

A: The answer to the given question is as follows--------- First we convert the number of molecules to…

Q: How many grams of ammonia, NH3, are produced from the reaction of 4.5 moles of Nitrogen and an…

A: Given, nitrogen = 4.5 mol and H2 is excess Reaction is ammonia synthesis. Chemical equation for this…

Q: What mass in grams of Cu(IO3)2 can be produced from 0.750 g of CuSO4 x 5H2O?

A:

Q: What is the mass (in g) of 9.87 x 1022 atoms of magnesium? The molar mass of Mg is 24.305 g/mol.

A: Since moles = number of atoms / Avogadro's number where Avogadro's number = 6.022 X 1023  =>…

Q: For many years the extraction of gold-that is, the separation of gold from other materials-involved…

A: P

Q: What is the mass in grams of 5.0 x 10 6 molecules of formaldehyde, CH2O?

A: Given: Number of molecules of formaldehyde = 5.0x106  Number of moles(n)=(number of…

Q: What is the mass in grams of 1.44 × 10²⁵ molecules of I₂?

A: The number of moles of a substance is determined as the number of molecules, atoms or ions upon the…

Q: The molar mass of one empirical unit of the antidepressant rolicyprine (C7H&NO) is 122.1 g/empirical…

A:

Q: What is the molar mass of the sodium alum salt, KAl(SO4)2 •12H2O?

A:

Q: About how many MOLES of aluminum are present in 152.89 grams of Al2O3?

A: Moles of a compound=given mass of the compoundmolar mass of the compoundMolar mass of Al2O3 is…

Q: 8. How many moles are there in 7.5 x 1043 molecules of H2SO,?

A: Given that , Molecules of H2SO4= 7.5×10^23

Q: Calculate the mass in grams of 2.84 x 1024 molecules of methanol. The chemical formula for methanol…

A: Given  Number of molecules of methanol = 2.84 × 1024 molecules  Chemical Formula of methanol      =…

Q: 4. a) How many particles ( b) What is the mass in grams of that salt? )are there in 1.25 moles of…

A: No. of particle = mol * NA     where NA is Avogadro number.

Q: What is the mass, in grams, of 9.43×1024 molecules of methanol (CH3OH)?

A: Calculate for number of moles of CH3OH: 1 mole of any substance contains 6.022×1023 units (namely…

Q: What is the mass in grams of 4.10 x 102° molecules of Br2?

A:

Q: The molecular formula of allicin, the compound responsiblefor the characteristic smell of garlic, is…

A: Molar mass of a compound is the sum total of molar masses of the elements present in that particular…

Q: What is the mass, in grams, of 7.70 * 1020 molecules ofcaffeine, C8H10N4O2?

A: The number of molecules of caffeine is 7.70×10 20 molecules Avogadro’s number is 6.02×10 23…

Q: If 1.50 moles of nitrogen gas reacts with an excess of hydrogen gas, what mass of ammonia would be…

A: The balanced reaction taking place is given as, => N2 + 3 H2 → 2 NH3

Q: What is the mass (in g) of 3.47 moles of Mg(OH)2?

A: Given the moles of Mg(OH)2 = 3.47 mol In order to find mass, we have to calculated the molar mass of…

Q: What is the mass, in grams, of 9.49×1024 molecules of methanol (CH3OH)?

A: Please find the attached images for the answer

Q: 1. What is the mass percentage composition of capsaicin? 2. What is the percentage composition of…

A: (1) Capsaicin has Following molecular formula -  C18H27NO3  And it's Molecular mass is -  =>…

Q: Determine the quantity of moles in 1.20 x 1024 molecules of H₂O

A: Conversion of molecules to the number of moles ?

Q: what is the mass percentage composition of the elements in the following compounds? Round to the…

A: Mass percentages are helpful to predict composition of compounds. This compound is always made up of…

Q: Calculate the mass in grams of 1.35 x 104 molecules of methanol.

A: Given :- number of molecules of methanol = 1.35 × 1024 molecules  To calculate = mass (in g)  1 mol…

Q: If the same amount of electricity that is used to produce 500 g copper metal (Cu Cu") is used to…

A:

Q: 1)_C;H; +, _ 02 >_CO co, +_H;0 62.11g of oxygen, makes how many moles of carbon dioxide?

A: Given that : Mass of O2 = 62.11 g Molar mass of O2 is 32 g/mol So, Number of moles of O2=Given…

Q: For the reaction C + 2H2 → CH4, how many moles of hydrogen are needed to make  103.9 grams of…

A: In chemistry, one mole can be defined as quantity containing particles equivalent to 6.023 × 1023…

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.