Calculate the number of moles equivalent to 5.4 x 10 atoms of helium.

Q: 8. How many oxygen atoms are contained in 5.25 g of NO2 gas?

A:

Q: An average sample of coal contains 3.0% sulfur by mass. Calculate the moles of sulfur present in…

A: Given : Mass of coal = 2.4 X 103 Kg  And mass % of sulfur = 3.0 % Since 1 Kg = 1000 g Hence mass of…

Q: It is estimated that we breathe around 5.0 x 1021 molecules of 0, in a single breath. What mass of…

A: Given: Molecules of O2 in a single breath = 5.0 × 1021. Molar mass of O2 = 32 g/mol

Q: Determine the number of moles in 1.83 x 1023 formula units of BaCl2.

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Q: How many moles of titanium are contained in 71.4 g?

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Q: Calculate the number of grams in 1.5 x10^16 atoms of sulfur.

A: Given, atoms of Sulfur = 1.5 x 1016  Molar mass of Sulfur = 32.065 g/mol

Q: What is the mass, in g, of 1.00 mol of helium atoms?

A: The mass in grams of 1.00 mol of helium atoms has to be given.

Q: How many moles of atoms are contained in 4.5 x 1022 atoms Cu.

A: The number of atoms of Cu is 4.5×1022. The formula to calculate number of atoms is,

Q: Determine the mass in grams of 3.2 moles of Ca(OH)2.

A: We know that, moles can be expressed as,                          or, mass of solute = Number of…

Q: Determine the quantity of moles of hydrogen in 3.06 x 103g of glycine, C:H$NO:?

A: The number of moles is calculated as: Moles=Given massMolar mass......(1) The molar mass of glycine…

Q: What is the mass, in grams, of a mole of ozone (0,) molecules?

A: Given :- 1 mol O3 molecules  To calculate :- mass of 1 mol O3 molecules in gram.  1 mol O3 molecules…

Q: What is the mass in grams of 1.13x1015 molecules of CS2 ?

A: Using Avogadro's number first we convert molecules to moles. Then using molar mass , we can…

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: Calculate the number of moles of hydrogen peroxide molecules, H2O2, present in a sample containing…

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Q: 1. Calculate the number of atoms of argon in 0.500 moles Ar?

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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: How many grams are in 3.02 x 1021 molecules of nitric acid?

A: Niric acid ⇒ HNO3Molar mass of Nitric Acid = 1 x atomic mass of Hydrogen +1 x atomic mass of…

Q: 1. 84 g of CsH&O6 contains 6.02 x 1023 molecules.

A: Molar mass of C5H8O6 = 5×12 + 8×1+ 6 × 16 = 164 g 1 mol of any substance contains= 6.022×1023…

Q: Question attached

A: Mass percentage It is one of the method to express the concentration of a substance The equation…

Q: Calculate the mass in grams of 1.40 x 104 molecules of Phosphorus triiodide, Pl3. g

A:

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: How many moles of atoms are in 6.00 g of 13C?

A: moles is related to the mass in grams and molar mass of the substance by the formula,moles = mass…

Q: Using the average atomic mass, calculate the mass in grams of each of the following samples.…

A: Given information,     4.50 x 103 mol of germanium, Ge

Q: How many moles of H2SO4 do you have if you there are 1.64 x 1012 molecules of H2SO4?

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Q: Determine the number of moles in: (a) 100 grams of magnesium hydroxide (Mg=24, O= 16, H=1) (b)1.75 x…

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

Q: Determine the quantity of moles of hydrogen in 3.06 x 10-3g of glycine , C2HSNO.?

A: Please find your solution below : Mole is a measure of amount of any substance.  It is defined as…

Q: 8. How many grams are in 2.55 x 1024 molecules of KCI?

A:

Q: F. Determine the number of moles in 3.82 X 10 molecules of water.

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Q: How many liters of NaOH are present in 4.6 x 10^26 atoms of NaOH

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Q: Determine the number of moles in 2.72 x 10^23 formula units of CaCl2

A: 1 mol of CaCl2 contains 6.022×1023 formula units. Therefore no. of mol in 1 formula unit are:

Q: What is the mass of 0.5 mole of nitrogen gas? O 1.20 x 1023 O 28.0 g O 14.0 g O 6.02 x 1023 3.01 x…

A: The mass of one mole of the substance is called molar mass. Therefore, the mass of any substance is…

Q: What is the empirical formula of C6H10O2?

A: The C6H10O2 is Allyl glycidyl ether.  Empirical formula of a chemical compound is the simplest…

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: How many moles are in 2.3 x 1023 molecules of uranium (IV) fluoride?

A: Molecular  formula of Uranium(IV) fluoride is UF4. Now, according to Avogadro's theory   1 mol…

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

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Q: 1. Calculate the number of moles of chlorine in 2.34 x 1019 molecules of chlorine.

A: The question is based on mole concept. we have to calculate number of moles in given molecules of…

Q: What is the mass of 2.49 x 1022 of CH4 molecules?  ( 1 mole = 6.02 x 1023)

A: Calculate the number of moles of methane.

Q: determine the quantity of moles in 4.21 x 1023 molecules of CaCl2

A: The number of moles of a substance is determined as the mass of a substance upon its molar mass. The…

Q: 13) How many moles are there in 4.50 x 1022 molecules of CH,?

A: 13.  Number of particles = 4.50 x 1022 molecules Number of atoms = Number of moles of CH4 x NA Here…

Q: Calculate how many grams of chlorine gas are in 7.496 x 1023 atoms of chlorine gas.

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Q: What is the mass in grams of 5.98 x 1015 molecules of CS2?

A: Given is,  molecules of CS2 = 5.98×10^15 We know , Molar mass of CS2=76.139 g/mol Avogadro's number…

Q: Convert 3.45 x 10 ^ 25 molecules of copper (III) sulfide to atoms of sulfur

A: In the molecular formula, the subscript written next to the atom represents the number of that atom…

Q: Determine the number of moles in  8.50 x 10^24 molecules N2

A: Given :- number of molecules of N2 = 8.50 × 1024 molecules  To calculate :-  number of moles of N2

Q: 1 gram of sulfur 0.5 gram of sulfur 2 moles of suilfur 6.02 x 1023 atoms of sulfur

A: 1 mole of substance = 6.022 × 10²³ atoms Mass of 1 mole of substance is equal Molar mass of the…

Q: Determine the number of moles in 4.21 x 10^23 molecules of CaCl2

A: One mole of any species contains avagadro number of atoms, molecules, ions etc.

Q: How many moles of CS2 make up 2.45 x 1025 molecules of CS2?

A:

Q: a sample contains 82.6 mmol of Mg(C^2H^3O^2)^2. How many moles(mol) of oxygen are in the sample?

A: We have to calculate the moles of oxygen.

Q: What is the mass of 1.36 x 1022 molecules of HCI? O 36.5 g 1610 g

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Q: The number of moles in 36 grams of water is O 2 1 O 20

A: