Which sample will have the greatest mass? A. 2 mol of SO2 B. 1 mol of SO2 C. 1 mol of SO3 D. 2 mol of SO3

Q: 39. A 540-g aluminum rod contains A. 20.0 mol of aluminum B. 540 Al atoms C. 1.2 x 1024 Al atoms D.…

A: A) Moles = Mass / Molar Mass Molar Mass of Al= 26.98 g/mol So Moles of Al= 540 /26.98…

Q: Mass of product…

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Q: A hydrogen filled baloon is ignited, and 1.50g of hydrogen reacts with 12.0g oxygen. How many grams…

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Q: a. Oxalic acid is a crystalline solid with the molecular formula H2C2O4. A sample of pure oxalic…

A:

Q: percent

A: CuO  + H2 ------------------ Cu  + H2o  Mm of CuO = 79g No of mole of Cu is = 4.7/79= 0.21mol From…

Q: how many grams of mercury are in 9 moles of mercury ?

A: By using mole concept , number of moles is given as below: number of moles=mass in gMM in…

Q: mass

A: moles of Compound = ( mass of Compound / molar mass of Compound )  Mass of the Compound = moles of…

Q: A mixture of 56.0 g of S and 1.10×102 g of Cl2 reacts completely to form S2Cl2 and SCl2.…

A: Given: Mass of S = 56.0 gMass of Cl2 = 1.10×102 gWe need to find the mass of S2Cl2

Q: S Ina 3.7-gram sample, there are (A) 1.1 x 10 atoms of gold (B) 3.2 x 1025 atoms of gold (C) 4.4 x…

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Q: How many moles are in 38.9 of Al? Atomic Weight of Al= 26.98

A:

Q: A mixture of 130.5 g of P and 134.8 g of O, reacts completely to form P¸O, and PO10. Find the masses…

A: Given - Grams of P = 130.5 g Grams of O = 134.8 g This means that 8 moles of P reacts with 8 moles…

Q: Calculate the number of atoms in sample. 2.26 g Hg

A:

Q: Determine the number of atoms in 19.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99…

A: Given: Mass of sodium=19.0 g Mass of one mole of sodium=22.99 g The number of atoms in 19.0 g of Na…

Q: 1.25 moles of PbO2 have a mass of

A: Given  Number of mole of PbO2  = 1.25 mole  Mass = ?

Q: One atom of an unknown element has a mass of6.66 × 1 0 -23 g. What is the identity of this element?

A: Molar mass is the mass of Avogadro's number (6.022×1023) atoms.

Q: A gallon of water has a mass of 3.79 kg. How many moles of water (18.02 g/mol) is this?

A: Given : Mass of water = 3.79 Kg  And molar mass of water = 18.02 g/mol

Q: Gaseous butane will react with gaseous oxygen (02) to pr 1.16 g of butane is mixed with 6.9 g of…

A: Given the chemical reaction between butane gas and oxygen gas. The products of the reaction are:…

Q: Calculate the mass of each element.a. 5.22 mol of He              c. 2.22 mol of Tib. 0.0455 mol of…

A: The number of moles can be calculated using the mass of a substance as its mass divided by the molar…

Q: Write a balanced chemical equation for the formation of magnesium oxide form magnesium metal  and…

A: When magnesium is burnt in the air, it results in the formation of magnesium oxide.

Q: Determine the mass, in grams, of 0.710 moles of S (1 mol of S has a mass of 32.07 g).

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Q: Aluminum (Al) is element 13 on the periodic table. A sample contains 4.56×1022 atoms of Al.…

A: In this question, we will calculate the amount of Al in grams unit.  You can see below.

Q: Which of the following contains the highest number of atoms? A) 1 mole of helium B) 1 mole of carbon…

A: 1 mole = 6.022×1023 = Avogadro's number Anything which is present in the number of 6.022×1023 is…

Q: If the initial mass of A is 18.03 g. calculate the mass of A remaining after 2.00 min. mass of A:

A: k = 0.0177s-¹  Ao = 18.03g  t = 2×60 = 120sec  ln[At] = ln[A] - kt            = ln[18.03] -…

Q: How many atoms of He can a balloon that has a 19 cm diameter hold? The density of Helium is 1.18…

A: Given data,Diameter of balloon=19cmRadius of balloon=19cm2=9.5cmDensity of He=1.18g/L

Q: what is the mass of 0.35 mol of K2S ?

A:

Q: How many grams of sulfur make up 3.01 mol of sulfur? [Use atomic mass: S, 32.06 amu]

A: The correct answer is given below

Q: Q find out mass 0 amam

A: Molality of the solution is equal to the number of moles of solute dissolved in one kilogram of…

Q: I want to know at least some reason why the mass of the Mgo formed could be lower that expected

A: Interpretation -  To tell about a reason why the mass of the MgO formed could be lower that expected…

Q: number

A: According to the question, the atomic number of oxygen is 8 and the atomic number of sulfur is 16.…

Q: Determine the mass, in grams, of 0.580 moles of Pb (1 mol of Pb has a mass of 207.2 g).

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Q: Determine the mass in grams of 5.79 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: Given no. Of atoms of barium = 5.79 x 10²¹  1 mole of barium = 137.33 g

Q: 5) Find the mass of 0.02 moles of K,Cr,O,. 7'

A:

Q: A is asking If the carbon in the pencil weighs 1.50 grams, how many carbon atoms does the pencil…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: One mole of O, has a mass of 16.0 g. Select one: O True O False

A: According to mole concept, 1 mole of a substance is equal to its molar mass. Therefore, first of…

Q: A sample of 6.000 g of nitrogen can be combined with 6.857 g of oxygen to form nitric oxide gas…

A: To Find: To find out the mass of oxygen required to react with  nitrogen to form nitrogen dioxide.

Q: Determine the mass in grams of 4.65 × 1221 atoms of barium. (The mass of one mole of barium is…

A:

Q: Calculate the number of atoms in sample. 39.733 g S

A: Given, Mass of Sulfur = 39.733 g

Q: How many atoms of He can a balloon that has a 15 cm diameter hold? The density of Helium is 1.18…

A:

Q: atoms of gold (Au) In a 3.7-gram sample, there are (A) 1.1 x 1022 atoms of gold (B) 3.2 x 1025 atoms…

A: Given, mass of Au = 3.7 g Molar mass of Au = 196.97 g/mol

Q: Determine the mass, in grams, of 0.750 moles of S (1 mol of S has a mass of 32.07 g).

A:

Q: a rain drop has a mass of 50mg and the entire pacific ocean has a mass of 7.08e20kg. What is the…

A: The mass of the rain drop is 50 mg = 0.05 g. The mass of entire Pacific Ocean is 7.08 × 1020 Kg.

Q: For your research project, you need to use isotopic labels. For this you buy chlorine gas (Cl2) that…

A: The basic constituent of a substance is known as an atom that has a nucleus consisting of protons…

Q: What is the significant figure in 450.707g/mol

A: significant figures can be calculated by following some rules.  given, 450.707 g/mol

Q: the isotope Si-28 has a mass of 27.977amu .Calculate the number of moles in 14 grams of Si-28

A: We will use the formula to calculate number of mole Number of moles = Weight (g) / Molar mass Molar…

Q: Mass of magneisum before experiment is 0.33g   mass after is 0.49 g   Calculate the number of…

A: Number of moles = Mass in gram/Molar mass in gram/mole Given that: Mass of Magnesium = 0.33 g Mass…

Q: Determine the mass in grams of 5.66 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: Given,

Q: Sample of zinc contains 2,5 moles of zinc atoms. The mass of the zinc sample is.. a. 164,575g b.…

A:

Q: Calculate the mass of sample. 72.1 mmol SO2

A: Given:  The number of moles of SO2=72.1  mmol=72.1×10-3mol The molar mass of…

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.