-How many grams of 03 are needed to make 3.2 g of Oxygen?

Q: How many Grams of H combine with 32.00g of O to form H2O?

A: Given,32 g of oxygen.

Q: How many moles of water are present in 75.0 g of H20?

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: Determine the number of moles of -2 magnesium used. The atomic weight of .magnesium is 24.3 g/mole

A: Given information is as follows; Mass of Magnesium = 2 g Atomic weight of Magnesium = 24.3 g/mole…

Q: If a  reaction in an experiment produces 6.63 grams of nitrogen gas, but theoretically it should…

A: Percentage yield = (experimental yield/theoretical yield) ×100

Q: Question is attached

A: Given data contains, Mass of nitrogen=16.9g Mass of hydrogen=16.9g Molar mass of nitrogen=28g/mol…

Q: How much is the mass, in grams, of 42.89 moles of C2H4­O?

A: How much is the mass, in grams, of 42.89 moles of C2H4­O?

Q: 12. If that hamburger contains 3.1 x 10 moles (or 0.000 000 31 moles) of selenium, how many grams of…

A: Given, Moles of selenium = 3.1 × 10-7 moles Note: Atomic mass of selenium = 78.96 g/mol Mass (in…

Q: If you have 3.10 g of H2, how many grams of NH3 can be produced?

A:

Q: How many grams of aluminum will combine with 3.67g of sulfur to form Al2S3

A: From a balance chemical reaction the mass of the product and the mass of the reactant required can…

Q: What is the mass in grams of 0.23 mol of BaSO4

A: ANSWER IS DISCUSSED BELOW :

Q: A 1.740-g sample of coal contains 1.584 g C. Calculate the mass percentage of C in the coal. Mass…

A: Mass percentage of C = 91.03 %

Q: How many grams of iron are combined with 45.1 grams of oxygen to make the iron(II) oxide compound?

A: Balanced reaction taking place is as follows: Molar mass of Fe = 55.845 g/mol Molar mass of O2 = 32…

Q: How many g of neon are contained in 2.00 mol of neonatoms?

A: Given data: Moles of Ne = 2 mol Formula used: Moles=Given massmolar mass

Q: a. If 1.34 mol hydrogen peroxide reacts, then how many moles of oxygen will form?

A:

Q: How many grams of iron are combined with 78.8 grams of oxygen to make iron(II) oxide compound ?

A:

Q: When the substance shown below burns in oxygen, the products are carbon dioxide and water. How many…

A:

Q: What is the mass of 12.5 moles of CO2

A: Molar mass of CO2 = 44g/mol

Q: How many grams of C are present in 1.0 mole of C2H4O2?

A: Given : The compound is C2H4O2. And moles of C2H4O2 = 1.0 mol.

Q: What is the mass of 10.7 mol of N20? 10.7 g 471 g 4.11 g 52.3 g

A: 1 mol of a molecule= molar mass of molecule

Q: How many moles of gold do you have in a 2 gram gold nugget? MM=197 g/mol

A: Given,  Mass of gold nugget = 2 g  Molar mass of gold nugget = 197 g/mol

Q: How many moles of oxygen are in a 92.4-gram sample of HNO;?

A: The molar mass of HNO3 is 63.01 gm In 1 mole of HNO3 ,we have 3 moles of Oxygen present.

Q: 5. How many grams of Oxygen are needed to make 7.1 g of Chlorine? SeCl6 + 02 --> Se02 + Cl2 O 1.1 O…

A: Gien mass of Cl2 produced= 7.1 gThe given balance reaction is:SeCl6 + O2  → SeO2 +3 Cl2 1 mol of O2…

Q: any moles of helium have been lost?

A:

Q: If you have 3.22 g of H2, how many grams of NH3 can be produced?

A:

Q: 5. In 43 grams of acetate, how many atoms of oxygen are present?

A: Mass of Acetate = 43 gram

Q: Consider the following balanced equation: 2 H2 + O2 - 2 H20 What mass of water (H20) will be…

A: The provided balanced equation:  2 H2   +     O2   →   2 H2O 2 mol      1 mol        2mol Molar Mass…

Q: How many moles of carbon dioxide can you make with 3 moles of methane and 5 moles of oxygen?

A: Methane reacts with oxygen to form carbon dioxide and water. The equation for the balanced chemical…

Q: Given the following reaction in the picture, what mass of hydrogen gas will be produced by the…

A: Given reaction: 3Fe(s) + 4H2O(g) → Fe3O4(s) + 4H2(g) We have to find the mass of hydrogen gas that…

Q: How many grams of water (18.02 g/mol) would contain 6.54 x 1024 hydrogen atoms

A: Avogadro number = 6.022 x 1023.

Q: What mass of hydrogen is in 0.75mg of Vitamin A?  There are 2.57g x 1018 moles.

A: 1 mole of a hydrogen has 6.022×1023 molecules.

Q: Calculate the mass of water former by the complete reaction of 96.1 g of propane with oxygen

A:

Q: 34. How many grams of water, H2O, can be produced by the reaction of 8 O2, and 8 grams of hydrogen,…

A: Here, we have to find the mass of water that can be produced by the reaction of 8 grams of oxygen…

Q: Given 88.0 grams of Boron, how many atoms of Boron (B) are present

A: To know, number of atoms, first we have to find out number of moles.

Q: How many grams of RbC10, are formed i

A: Given :- mass of RbCl = 135 g  To calculate :- mass of RbClO4 (in g)

Q: mole of Fl(OH)2 would have a mass of how many grams

A: Given -> Molecular formula= Fl(OH)2 Number of mole = 1 mole

Q: How many moles of 02 willy completely react with 6.23 mol PbS?

A: During the reaction between PbS and O2 the PbS converts to PbO and S is oxidized to SO2 from the…

Q: Which of the following is necessary to do a complete stoichiometric calculation?  Write the mole…

A: There are four steps to complete stoichiometric calculation: Write the balanced chemical equation.…

Q: How many grams of BaBr2 do you need to make 4.952g of BaCr2O7

A:

Q: For numbers 20-25: Nitric acid is prepared from the reaction of 69.0 grams of nitrogen dioxide with…

A: Balanced chemical reaction: 3NO2 + H2O .....> 2HNO3 + NO  Mass of NO2 = 69.0g Mass of H2O = 36 g

Q: Silver nitrate reacts with nickel to form Ni(NO3)2 and silver. To produce 1 kg of silver, how many…

A:

Q: If you have 31.45 g of KClO3. Calculate the mass in grams that belong to oxygen

A: Mass is the amount of matter present in a body. S.I unit of mass is Kg.

Q: How many grams of NO2 are needed to make 1.5 g of N2?

A: Given :- mass of N2 = 1.5 g  To calculate :- mass of NO2 (in grams)

Q: Suppose 2.43 g of magnesium is reacted with 3.20 g of oxygen: 2Mg + O2 → 2MgO. How many grams of MgO…

A:

Q: How many milligrams of aluminum are present in 5.60g of aluminum sulfate?

A: Given, Mass of aluminum sulfate =  5.60g

Q: 36.) How many molecules of N2O are there in 60.0g of N2O?

A:

Q: 7. How.many moles are in 22 grams of argon?

A: 7. Given that: Ar = 22 g  Molar mass of Ar = 39.95 g/mol

Q: 2_Н.О, — 2 Н,О + a. If 1.34 mol hydrogen peroxide reacts, then how many moles of oxygen will form?

A: The given reaction is,      2H2O2→2H2O + O2 Here in the reaction 2 moles of hydrogen peroxide formed…

Q: 4.0x1024 Pb atoms

A: Since you have posted a  question with sub-parts , we are entitled to answer the first three…

Q: What is the mass in kilograms of 71.6 mol of Fe?

A:

Q: According to the following reaction, how many grams of water are needed to form 24.7 grams of oxygen…

A: When stoichiometric coefficient results in the equal number of atoms of each element on both the…

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.