a. When 0.25 g of Na combines with elemental oxygen under certain conditions, it forms 0.42 grams of a binary compound NaxOy – made of Na and O atoms only.  Find its empirical formula: b. Find its molecular formula, given its molar mass of 78 g/mol:

Q: 1:44 1 Be sure to answer all parts. The interhalogen compound CIF, reacts with NH3 to produce three…

A:

Q: a. How many moles of carbon tetrachloride, CC14, are present in a sample that contains 6.30 moles of…

A: a. Given: 6.30 moles of chlorine atoms Determination of moles of carbon tetrachloride: One mole of…

Q: Li + K2SO4 ---------->  Li2SO4 + 2 K How many grams of potassium are produced if 3 moles of K2SO4…

A: Given : We have to calculate the mass of K produced.

Q: cive Lp? Resources A compound is 53.31% C, 11.18% H, and 35.51% O by mass. What is its empirical…

A: Given,Mass percentage of C = 53.31 %Mass percentage of H = 11.18 %Mass percentage of O = 35.51 %This…

Q: 28) How many moles contain 6.022 × 1023 lithium atoms? A) 2 moles B) 1 mole C) 6.022 x 1023 moles…

A: Given  Number of Lithium atom = 6.022 × 1023  Number of mole = ?  Mass of FeSO4  = 4.657 gram…

Q: Citric acid (right) is concentrated in citrus fruits and plays a central metabolic role in nearly…

A: the molecular formula of the citric acid is C6H8O7. Molar Mass = 192.12 g/mol

Q: How many grams of KBr, 119.0 g/mol, are required to prepare 0.829 moles of Br2 according to the…

A: The balanced chemical equation is given below: KBrO3 + 5 KBr + 6 HNO3 → 6 KNO3 + 3 Br2 + 3 H2O

Q: .Calculate the number of moles of hydrogen chloride produced from 10 moles of hydrogen. H2(g) +…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: K2s2o3 + 4cl2 + h2o = 2khso4 + 8hcl Calculate how many grams of hack (molar mass = 136.17 mol/g is…

A: Here we have to calculate how many grams of hack is produced-

Q: 12. Ammonia is a principal nitrogen fertilizer. It is prepared by the reaction between hydrogen and…

A:

Q: Item 15 Carbon disulfide and carbon monoxide are produced when carbon is heated with sulfur dioxide.…

A: The number of moles gives the amount of moles present in the compound. The formula of it is given as…

Q: Lab 5. Counting Molecules 1. Fill in the table C12H22011 NH,CI Mass (g) 1.0015 1.0238 Molar Mass…

A:

Q: Silicon to be used in computer chips is manufactured in a process represented bythe following…

A:

Q: The decomposition of KClO3 is commonly used to prepare small amounts of O2 in the laboratory:…

A: The chemical reaction :  KClO3(s) ---> KCl(s) + O2(g)  Mass of KClO3 = 4.50 g  Mass of O2 (in…

Q: A 2.36-gram sample of NaHCO3 was completely decomposed in an experiment. 2NaHCO3 → Na2CO3 + H2CO3…

A: The balanced reaction is -  2NaHCO3→Na2CO3+H2CO3

Q: SO2(g) + 2Cl(g) -> SOCl2(g) + Cl2O(g) If 0.600 mol of Cl2 reacts with excess SO2, how many moles of…

A:

Q: Consider the reaction shown.   4HCl(g)+O2(g)⟶2Cl2(g)+2H2O(g)   Calculate the number of grams of…

A: The balanced reaction taking place is given as, => 4 HCl (g) + O2 (g) ------> 2 Cl2 (g) + 2…

Q: C6H8      +     O2      ------à     CO2      +      H2O How many moles of O2 are needed to form 60…

A:

Q: Stoichiometry 11. Nitrogen and oxygen form an extensive series of oxides with the general formula…

A: Given data : % of Nitrogen = 36.84 %

Q: 1. How many moles of manganese(II) fluoride, MnF2, are present in a sample that contains 3.32 moles…

A: Given substance is  Manganese(II) fluoride , MnF2 It ionises as follows MnF2 ------> Mn2+ + 2 F-…

Q: How many grams of KBr, 119.0 g/mol, are required to prepare 0.908 moles of Br2 according to the…

A:

Q: /A- Lanthanum ion reacts with iodate ion to form a slightly soluble precipitate having the formula…

A: Before finding the mass of reactant consumed or product formed, we need to the find the limiting…

Q: The chemical formula for lithlum fluorlde Is LiF. A chemist measured the amount of lithlum fluoride…

A: Molar mass of LiF is sum of atomic masses of Li and F.Atomic mass of Li is 6.941 and atomic mass of…

Q: 2. A 0.325 g sample of copper was weighed out by a student to start this experiment. A. How many…

A: Given that -  Mass of sample of copper = 0.325 g    (A) Now the number of moles of copper are -…

Q: 8. How many moles are in 16.4g of Lead (II) nitrate? Pb(NO3)2 + 2KI → Pbl2 + 2KNO3 9. How many moles…

A: Since you have posted questions with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Be sure to answer all parts. Ammonia is a colorless gas with a pungent, characteristic odor. It is…

A:

Q: Adipic acid, H2C6H8O4, is used to produce nylon. It is made commercially by a controlled reaction…

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall be…

Q: 4. Oxides of titanium are used as pigments. A compound containing only titanium and oxygen is 66.6%…

A: Given:Compound contains only titanium and oxygen.Percent mass of titanium = 66.6 %.Percent mass of…

Q: Which one of the following molecular formulas is also an empirical formula? C,H,0, A) C,H,SO В) H,O,…

A:

Q: When aluminum is placed in concentrated hydrochloric acid, hydrogen gas is produced. 2A1(s) +…

A:

Q: 6. Cra(P207)3 a. Calculate it's molar mass b. 4.93 mols Cra(P207)3 = _g Cra(P207)3 c. 78.45g…

A: Mole is the amount of the substance that contains the same number of particles or atoms or…

Q: MnO2 (s) + 4 HCl (aq) ----> Cl2 (g) + MnCl2 (aq) + 2 H2O (l) How many moles of MnCl2 will be…

A: According to balanced chemical equationMnO2(s) + 4HCl(aq) →Cl2(g) +MnCl2(aq) +2H2O(l)1 mole of MnO2…

Q: 1. A chemist has a 60g sample of element X and incrementally adds element Y, known to react with…

A: From the given information,The corresponding equation will be:X   +  Y  →   XY Mass of X = 60g Mass…

Q: AgNO, +NaCl → A9CI + NaNO, How many molecules of AgCl are produced from 75.000 g of AGNO,? H,O2 →…

A: In all the questions, we have to estimate the number of molecules of products formed in the…

Q: 12- The limiting reactant of the reaction is 13- The mass of Al203 in g produced from the reaction…

A: INTRODUCTION: (1) Limiting reactant: The amount of the product generated is limited by the reactant.…

Q: 1. Bismuth oxide reacts with carbon to form bismuth metal: BizO3(s) + 3C(s) →2Bİ(s) + 3CO(g) (a) How…

A: a. Calculating the moles of carbon needed to react with 147.8 g Bi2O3:

Q: (a) How many moles of C atoms are in 1 mol of sucrose (C12H22011)? (1 mol is an exact number.) mol C…

A: (a)   • The values provided in the question are:-    i) Number of moles of sucrose= 1 mol    •…

Q: a) How many atoms are present in 34.69 moles of Mg? 2.09 X 1025 atoms b) How many atoms are present…

A: 4(a) Moles of Mg given = 34.69 mol 1 mol of Mg contains = 6.022×1023 atoms 34.69 mol of Mg contains…

Q: How many moles of nitrite ions are present in a sample that contains 2.81 moles of copper(II)…

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

Q: 4. are abbreviations used in chemistry for chemical elements, functional groups, and chemical…

A: a mole of a substance weighs its molar mass and contain Avagadro number of particle i.e 6.023*1023…

Q: 1. Nitrogen monoxide reacts with oxygen to form nitrogen dioxide. NO(g) + O2(g) → NO2(g) a. How many…

A:

Q: 53.5 mol of P4O10P4O10 contains how many moles of P

A: One molecule of P4O10 contains 4 atoms of P.

Q: How many moles of aluminum fluoride, AlF3, are present in a sample that contains 3.49 moles of…

A:

Q: Ammonium nitrate (NH4NO3) decomposes to give nitrous oxide (N2O) (laughing gas) and water (H2O):…

A: From the balanced chemical reaction it is clear that, 1 mole NH4NO3 on decomposition gives 1 mole…

Q: ? Liz PO4 (aq) +? CaCl2 (aq) → ? LİCI (aq) +? Ca3(PO4)2 (s) How many grams of calcium phosphate can…

A:

Q: A compound that is composed of carbon, hydrogen, and oxygen contains 70.6% C, 5.9% H, and 23.5% O by…

A: Emperical formula is simplest formula given to a compound based proportion of atoms present in the…

Q: determine the theoretical yield of Cl2.

A:

Q: Calculate the mass percent composition of (NH4)2SO4 (Show work please)

A: The solution is as follows:

Q: A 4.04-g sample of methane is burned completely in air. (a) How many moles of H2O are formed? M (b)…

A: Mass of methane burned completely = 4.04 grams.  a) Number of moles of H2O produced = ?  b) Number…

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.