Which of the following has the highest percentage composition of oxygen? Na2CO3 LiNO3 Li2O CuO

Q: How many moles of Ag are in 73.2 grams of Ag₂O?

A: Given Mass of Ag₂O = 73.2 g Molar mass of Ag₂O = 231.7 g/mol

Q: How many grams of Silicon Dioxide would be needed to produce 2.664 kg of Calcium Sulfate?…

A: The given balanced equation for the reaction is : 2CaF2 + 2H2SO4 + SiO2  ⟶  2CaSO4  +  SiF4  +  2H2O…

Q: Given the chemical equation: 2H₂ + O₂ → 2H₂O, how many moles of H₂O is produced to balance the…

A: When hydrogen (H2) gas burns in oxygen (O2)  water(H2O) is produced.

Q: what is the mass in grams of 4.31 x 10-3 mole (NH4)2HPO4

A: Mass of a substance can be determined with the number of moles and molar mass of the substance.

Q: How many atoms of carbon are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99…

A: First convert the given grams of Al2(CO3)3 to moles.  Moles=MassMolar mass=47.6 g233.99 g/mol=0.2034…

Q: During the decomposition of KClO3, 7.23 grams of oxygen gas are created. How many moles of KClO3…

A: The reaction is: 2 KClO3 → 2 KCl + 3 O2 mass of O2 gas formed = 7.23 g

Q: How many g are in 35 mg? O 3.5 g O 35 g O 0.035 g O 35,000 g

A: Given,  35mg of any substance.  It converted to gram.

Q: Calculate the number of O atoms in 0.0136 g of CaSO4 2H₂O. x 10 O atoms (Enter your answer in…

A: Answer: Given data: Mass of CaSO4.2H2O m=0.0136g

Q: CH4(g) + 2 O2ie) CO2(g) + 2 H2O(g) What mass of water is produced by the complete reaction of 10. g…

A: Given the balanced reaction, CH4(g) + 2O2(g) → CO2(g) + 2 H2O(g) mass of methane = 10. g

Q: Some antiperspirants contain aluminum chlorohydrate, Al2 C1(OH)5. How many grams of aluminum are…

A: The objective of this question is to determine the mass of aluminum present in a given mass of…

Q: How many moles of Ag are in 67.1 grams of Ag₂O?

A:

Q: What is the molar mass of MgSO4 ● 7 H2O ? H=1.01 O = 16.00 Mg = 24.31 S=32.07

A: Given, molar mass of MgSO4 ● 7 H2O  = ? Note: The molar mass of different atoms are, H = 1.01 g/mol…

Q: estion 3 Consider the following chemical reaction. It is mostly balanced, but missing the proper…

A: balanced chemical equation occurs when the number of the different atoms of elements in the…

Q: Given the equation 3 NO2 + H2O —> 2 HNO3 + NO how many moles of H2O are required to use up 2.3 kg of…

A:

Q: The chemical formula for feldspar is K₂Al₂Si₆O₁₆. How many moles of feldspar are in 669.9 grams?

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

Q: How many grams of H₂ can be formed from 54.6 grams of NH₃ in the following reaction? 2 NH₃(g) → 3…

A: Given that the mass of ammonia is 54.6 g which decomposes to form nitrogen gas and hydrogen gas. The…

Q: What is the coefficient of CO 2 when the following equation is properly balanced with the smallest…

A: The chemical equation :  C4H10  + O2  ---> CO2  + H2O The coefficient of CO2 in the balance…

Q: How many oxygen atoms are there in the product of the chemical equation? 3 Ag(s) + 4 HNO3(aq) --> 3…

A: Given  Reaction  3Ag(s)  + 4 HNO3(aq)   → 3AgNO3(aq)   + 2H2O(l)   +  NO(g) Number of oxygen atom in…

Q: Nitric acid is produced via the following equation: 3 NO2 + H2O → 2 HNO3 + NO How many grams of…

A: To calculate the grams of NO2 are required to produce 4.0 grams of HNO3 . First we have to convert…

Q: How many total Cl atoms are in 5.00 g FeCl3?

A: Given that : The mass of FeCl3 = 5.00 g The molar mass of FeCl3 is 162.2 g/mol.

Q: How many atoms are found in 3.45 g of CO2?

A: 1mole of any species contains avagadro number of atoms , molecules and ions .

Q: An organic compound was found to contain only C, H, and C1. When a 1.50 g sample of the compound was…

A: To given solution-Explanation:Complete solution.

Q: before 1959, oxygen was popularly used to define the unit of mol. in 1967, the international…

A:

Q: For every one molecule of sodium azide that ignites, how many molecules of gas are formed?   2…

A: 2 NaN3(s)     ------------>  2 Na(s)     +    3 N2(g)

Q: Determine the % composition for each element in Al 2 (SO 4 ) 3 ?

A: To find the percent composition of Al₂(SO₄)₃, you divide the total mass of each atom by the…

Q: How many moles of Ag are in 87.4 grams of Ag₂O?

A: molar masss of Ag2O = 231.7 g/mol Number of moles = 87.4 g / 231.7 g/mol = 0.372 Moles

Q: What is the percent by mass of hydrogen in Ca(OH)2? Group of answer choices 2.72 % 1.36% 21.6 %…

A: % by mass basically tells about the concentration of one element present in the mixture. The formula…

Q: The number of moles in 37.80 g of C2H6O (molar mass = 46.1 g/mol) is  9.072 x 10^2  8.200 x 10^-1…

A: Correct: 2.  8.200 x 10-1 Given that,  Weight of C2H6O given = 37.80 g Molar mass of C2H6O = 46.1…

Q: How many moles are in 3.56 x 10 ^25 molecules of carbon dioxide, CO2

A: Given: Molecules present are 3.56 × 1025

Q: moles

A:

Q: Part A Consider the following reaction. How many moles of oxygen are required to produce 2.33 moles…

A: Given is , Moles of water = 2.33 mol

Q: How many molecules of H2O would be found in 54.05 grams of water?    choices: 3.252 x 1025 molecules…

A:

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.