Find the number of K+ions in 3.41 mol of K2HPO4?

Q: number of moles of (c)  acetate ions, CH3COO-, in 0.43 mol of Ca(CH3COO)2.

A: 2) In 1 mol of Ca(CH3COO)2 has 2 moles of  CH3COO- ion.

Q: 5. Complete the following table: Compound Empirical Formula Molecular Formula P,O10 C,H120

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Q: 5. If a hydrocarbon compound has a formula mass of 16.04g, what is its empirical formula? О СН2 O…

A: Given :-  Empirical formula  CH2  CH4  C2H2  CH3 Empirical Formula mass = 16.04 g  To identify :-…

Q: (f) number of O atoms in 6.25 x 10-3 mol Al(NO3)3

A: Total number of oxygen atom = 3.39×1022 atoms

Q: (a) H2 _?_ x1025 H atoms  (b) Ca(NO3)2 _?_ x1023 Ca2+ ions  _?_ x1024 NO3- ions  (c) N2O2 _?_ x 1024…

A: The mole is actually contains Avogadro’s number of particles in elements or compounds. Avogadro’s…

Q: What is the molecular formula of each compound? a. empirical formula CH (MM = 78.11 g/mol) b.…

A: we are required to find the molecular formula for each of the given empirical formula

Q: Determin the number of moles of compound within 0.25 g of glycine, CH;NO2

A: Given :- mass of glycine = 0.25 g  To calculate :- no. of moles of glycine

Q: 15. A compound contains 1.90% H, 67.6% CI, 30.5%O? What is its empirical formula? O A. HCIO B. HCIO2…

A: “Since you have asked multiple question, we will solve the first question for you as per our…

Q: number of moles of s2- ions in 6.56 mol of Na2S

A: Number of moles of Na2S = 6.56 mol. Number of moles of S2- = ?

Q: Without using a calculator, arrange these samples in orderof increasing numbers of O atoms: 1 mol…

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Q: From the given empirical formula and molar mass, find the molecular formula of each compound. a.…

A: From the given empirical formula and molar mass, find the molecular formula of each compound. a.…

Q: how many hydrogen atoms are in 0.0948 g of C3H7OH

A: Molar mass of a particular compound is the sum of atomic masses of constituent elements. Moles of…

Q: Calculate the number of moles in 2,792.4 mg of Ca(NO3). Calculate the number of molecules. Calculate…

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Q: Cisplatin (right), or Platinol, is used in the treatment of certain cancers. Calculate (a) the…

A: Because, number of moles of compound=mass of compound (in g)molar mass of compound (in g/mol) So the…

Q: Hydroxylamine, NH2OH, is a reducing agent found in some film developing solutions. How many hydrogen…

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Q: hich of the following is closest to having exactly one mole of oxygen atoms?   a) 42 g HNO3 b) 32…

A: a. 42 g HNO3 1 mole HNO3 contains = 3 moles of oxygen atoms moles of HNO3 = given mass/molar mass =…

Q: 7. Determine the empirical formula of a compound whose composition is 50.1% S and 49.9% O.

A: Convert the mass percent to grams : Thus 100 g sample of above compound contain 50.1 g Sulphur(S)…

Q: How many moles of ammonium ions (NH_4^+) are in 2.5 mol of ammonium sulfate(NH_4)_2SO_4 A. 2 B 2.5…

A: Please find the solution below:

Q: Calculate the number of moles of: (a) S2- ions in 6.56 mol of Na,S (b) Mg²+ ions in 8.320 mol of…

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Q: Calculate the number of moles of: (a) s2- ions in 6.56 mol of NazS (b) Mg²+ ions in 8.320 mol of Mg3…

A: (a) Given , compound is Na2S moles of Na2S is =6.56 mol

Q: What is the empirical formula of a compound composed of 30.9 g30.9 g of potassium (KK) and 6.32…

A: Given Mass of K = 30.9 g. Mass of O = 6.32 g

Q: How many carbon atoms are present in a 13.5 g sample of this compound? A compound is composed of…

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Q: Calculate the number of moles of: (b)  Mg2+ ions in 8.320 mol of Mg3(PO4)2. (c)  acetate ions,…

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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: Calculate the number of moles in 2,792.4 mg of Ca(NO3)2. Calculate the number of molecules.…

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Q: Write the empirical formula corresponding to aspirin, C₉H₈O₄.

A: Empirical formula  Smallest whole number ratio that exists between a compound's constituent…

Q: Calculate the number of iron atoms in a 70.0 g sample of iron (III) oxide (Fe2O3)

A: Given is 70.0 gram iron(III) oxide sample. (Fe2O3) We are to find number of iron atoms in this…

Q: Without using a calculator, arrange these samples in order of increasing numbers of carbon atoms:12…

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Q: Which has more hydrogen atoms? A mole of CH4 or two moles of H2? Provide an explanation.

A: Interpretation: Which has more hydrogen atoms, a mole of CH4 or two moles of H2 is to be determined.

Q: Help me please

A: Number of moles of sulphuric acid = 8.21 moles. Number of molecules of sulphuric acid = ?

Q: 3) Calculate the number of moles of: a) Mg2+ ions in 8.320 mol of Mg3(PO4)2 b) acetate ions,…

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Q: Determine the number of atoms of O in 7.23 moles of Na₂SO₄.

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Q: Calculate how many molecules there are in 16.4 g HF.

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Q: 2: Find the number of K* ions in 3.41 mol of K,HPO4? 3: Find the amount of the indicated element (in…

A: 1 mole of any compound has 6.023*1023 molecules or atoms. Moles = given mass of compound/molar mass…

Q: 1.50 g Lithium Carbonate to atoms O 9.09 x 10*23 atoms O 7.12 x 10°23 atoms 8.06 x 10*23 atoms O…

A: Lithium carbonate is a chemical salt, a lithium carbonate salt with the Li2CO3 formula. This white…

Q: Determine whether or not each chemical formula is an empirical formula or not? Caco3? Ba3(PO4)2?…

A: Chemical formula: In the chemical formula we write the atoms of each element present in the compound…

Q: 1. How many MOLECULES of water are present in 3.00 moles of this compound ? molecules. 2. How many…

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Q: Calculate the mass percent composition of carbon in each carbon-containing compound.a. CH4 b. C2H6…

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Q: Calculate the massin grams of 6.12 mole Cu(NO3)2

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Q: Calculate the molar mass of each compound. Keep at least one decimal place in atomic masses from the…

A: Given compounds are LiCl and Al2S3The atomic number of Li, Cl, Al and S from the periodic table with…

Q: Calculate the number of molecules in 300.0 g Zn

A: No. of moles = mass/molar mass  molar mass of Zn = 65.38g/mol mass of Zn = 300.0g

Q: What is the mass of exactly 1 mole of each of the compounds? N,O: Fe(CIO),: Fe(CIO, )3:

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Q: How many bromine atoms are present in 35.2 g of CH2Br2?

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: Write the formula and then find the molar mass. e. iron(III) hydroxide f. tin(II) chloride a. sodium…

A: Note: As per our guidelines, we are supposed to answer only the first three subparts when multiple…

Q: 2 K3PO4 + 3 Ba(OH)2 -> Ba3(PO4)2 +6 KOH total ionic? net ionic?

A: The total ionic equation is used to represent the molecular equation, wherein all the reactants and…

Q: On step 1 when we need to find g/mol for Co/Cl2, how did you get 129.839 g/mol?

A: Molar mass of CoCl2 can be found out from their elements i.e. using the molecular mass

Q: Calculate the number of molecules in 8.21 moles of sulfuric acid (H2SO4). a 4.94 x 1024 molecules b.…

A: Moles of sulfuric acid=8.21 moles 1 mole= 6.023×10^23 molecules

Q: Ibuprofen has the molecular formula C13H1802. The number of moles of carbon atoms in 0.0325 mole of…

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Q: 5. How many moles are equal to 6.54x1025 formula units of potassium permanganate? 6. How many…

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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.