Calculate the mass% composition of each of the following (show your work below)   a) 6.38g of N and 2.12g of C   1) Write the % of C   2) Write the % of H

Q: A model of the ethanal molecule is shown in the window below. progress ball & stick- + labels HO a.…

A: 1 mole = 6.022 x 1023 atoms/molecules/entities

Q: 4. What percent of AgNO3 is silver? 5. How many grams of aluminum can be recovered from a 34.5 g…

A: (4) Given that -  Compound AgNO3 (Silver nitrate)  It has following atoms with atomic masses as -…

Q: 2. a) How many molecules are in 2.00 moles of H¿O? b) How many hydrogen atoms in 2.00 moles of H,O?…

A: Since you are posted with multiple sub-parts. As per the rule, I am answering first three sub-parts…

Q: 1) How many mnoles are there in 24.5 grams of CoF,?

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

Q: 24) Which of the following compounds contains the largest number of atoms? A) 1.00 mole of H,PO, C)…

A:

Q: A 0.660 g sample of a pure hydrocarbon was completely burned. The products were 1.28 g CO2 and 0.421…

A: Given :  Weight of hydrocarbon = 0.660 gm  Weight of CO2 formed = 1.28 gram  Weight of H2O formed =…

Q: Ammonium phosphate NH43PO4 is an important ingredient in many fertilizers. It can be made by…

A: The given mass of ammonia = 7.5 gThe mass of ammonium phosphate produced = ?

Q: 16. Empirical Formula Mass: 19. Empirical Formula Mass: CH HgF 17. Empirical Formula Mass: 20.…

A: Empirical formula and molecular formula: Empirical formula: it can be defined as the simplest whole…

Q: The unknowns are a mixture of ferrous ammonium sulfate, FeSO4(NH.)2SO4 6H20, and ammonium sulfate,…

A: For calculating the mass of FeSO4 (NH4)2SO4.6H2O and (NH4)2SO we need to know the mass of each…

Q: A sample of Water, H2O, has a mass of 55 grams. Determine the number of moles in the sample.

A:

Q: a. Determine the molar mass of potassium phosphate and ammonium phosphate. K3PO4 (NH4);PO4 b.…

A: The objective of the question is to determine the molar mass and mass percentage of phosphorus.

Q: An unknown compound containing tellurium and bromine is analyzed and it is determined that 28.53% of…

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

Q: If the scientist did another trial with 10 mol of N2 and excess H2, how many moles of NH3 would she…

A: Given data contains, Moles of nitrogen is 10 mol. Desired: ___ moles of ammonia. The balanced…

Q: - Why do we use the "mole" in chemistry. How does it relate to the periodic table? a) What is the…

A: The relationship between mole and mass is as follows:       Mole = Mass Molar mass ⇒Mass =…

Q: Be sure to answer all parts. The interhalogen compound CIF3 reacts with NH3 to produce three…

A: Given, 2NH3 + 2ClF3 → 6HF + N2 + Cl2 mass of NH3 react = 27.4 g mass of ClF3 react = 166.7 g mass of…

Q: 1. What is the mass percent of C in C2O? 2. What is the mass percent of Ca in CaBr2? 3. What is…

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

Q: II. Empirical Formula 1. A compound contains 40.92 % C, 4.58% H, and 54.50% O by mass. What is the…

A: Determination of empirical formula The percentage composition of elements present in given compound…

Q: A compound contains 29.17 mass % N, 4.20 mass % H, and 66.63 mass O. If its molar mass is between 94…

A:

Q: A compound contains C, H and O as the elements.   A 20.0 g-sample is comprised of 1.34 g H and also…

A: Given that the mass of C and H in a compound of mass 20.0 g is 1.34 g and 8.00 g respectively. Mass…

Q: C. If 1.87 grams of NaHCO3 is decomposed, how many grams of Na2CO3 will be produced? NaHCO3 > NazCO3…

A: From the balanced chemical equation the following calculation is Given for the grams of Na2CO3

Q: 1) How many atoms does each molecule of H,SO, has? A) 8 B) 6 C) 7 2) A compound of carbon and…

A: we have to tell which option is correct from given choices of options by telling  number of atoms in…

Q: 45 atoms of calcium weigh O 1804 amu O 1804 g 2.71 × 1025 amu 900 g 900 amu

A: According to mole concept, 1 mol of a substance has 6.023x1023 atoms and weight equal to its atomic…

Q: What is the maximum number of grams of ammonia, NH 3, that can be obtained from the reaction of 5.0…

A:

Q: A compound was analyzed and found to contain 66.68% C, 11.11% H, 22.22% O If the molar mass is 144.…

A:

Q: Find the number of molecules in the following 56.58 g of CO, 2.16 g of NaCI 133.27 g of CF

A: Since you have posted a question with multiple parts, we will solve only first three parts for you.…

Q: Number of atoms of C in 16 moles of C,H10 are: O 6.64x10^23 385.41x10^23 O 24.09x10^23 O 96.35x10^23

A:

Q: Consider the mixture of propane, c3h8 and o2 a. What is the percent, by mass, of carbon in propane?

A: The molecular formula of propane is = C3H8 The mass percent of the carbon in propane is =?

Q: Find the empirical formula for a compound made of 55.20% Hg, 9.50% S, and 35.30% O.

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: A student synthesizes tin oxide to create a compound with generic formula SnxOy. She does this by…

A: The mass of tin is = 30.80 g The mass of tin oxide is = 39.10 g The mass of oxygen is = 39.10 g -…

Q: How many moles of Al2(CO3)3 contain 2.63x1025 atoms of oxygen (O)? a) 393 moles b) 4.85 x 1046…

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

Q: A 10.68 g sample of compound that contains only carbon, hydrogen, and oxygen was analyzed through…

A: Given mass of sample is 10.68 g. Upon combustion it gives 16.01 g CO2 and 4.37 g H2O

Q: [Review Topics] [References) Iron forms a compound with carbon monoxide, Fe, (CO),. To determine its…

A: The reduction of iron oxides to iron in a blast furnace is caused by carbon monoxide. At the high…

Q: 19 Convert 7.16E24 atoms of Ni to grams of Fe. 2 Ni+3 Fe(NO3)2 → 2 Ni(NO3)3 +3 Fe type your…

A:

Q: 2 Al + 3 NISO, - 3 Ni + Al2(SO4)3 Determine the moles of nickel that are formed from reacting 0.25…

A: Consider the given balanced equation as; 2 Al + 3 NiSO4 → 3 Ni + Al2SO43 Moles of aluminium Al =…

Q: Which has the same empirical formula as its molecular formula? OCH₂Br ON ₂04 OC₂H₂ O all of these…

A:

Q: The empirical formula a compound is C 2H 40 and its molecular weight was determined to be…

A: Empirical formula is the simplest ratio of atoms present in molecule. Therefore ratio of elements C:…

Q: What mass of AuCl3 (MW 303 g/mol) contains 5.0 x 1023 atoms of Cl? a) 760 g b) 0.83 g c) 120 g d) 28…

A: Formula used :-  Number of moles (n) = mass/molar mass

Q: Which substances have the same empirical formula? Explain how you know. Sample Formula 1 CH3OH CH2O…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: 1. Which element comprosing Mg(OH)2 has the highest % by mass? 2. Determine the % composition of…

A: Molar mass of Mg(OH)2 = 58.32 g/mol  Atomic mass of Mg = 24.30 g/mol  Atomic mass of O = 16.00 g/mol…

Q: Review I Constants I Periodic Table Percent composition refers to the mass percent of each element…

A: The mass percent of each element is calculated as,

Q: A. Find the molar mass of (Na2B407 • 10H2O). Show work B. Find the mass of oxygen in a 2.25-gram…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: 니 6. If you have 14.0 grams of O₂ available with the C3Hs, how many moles is this?

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

Q: An unknown compound has the following chemical formula: N₂Hx where x stands for a whole number.…

A: Given,Unknown compound moles of  nitrogen = 4.33moles of Hydrogen = 8.6

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.