1. One drop of water from a medicine dropper has a volume of approximately 0.050 mL (1 mL = 1 cm3) a.) Determine the number of water molecules in a drop of water. (The density of water is 1.0 g/cm3). b.) How many H atoms would be present in these molecules?

Q: 1. chemical bond A. The attraction between atoms resul the sharing of electrons or the tran:…

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Q: A binary covalent compound contains 78.3% baron and the rest is hydrogen. Its molar mass is…

A: We have  Percentage of Boron (B)=78.3% Percentage of Hydrogen (H)=100-78.3=21.7% Atomic mass of…

Q: 3) Show your calculations clearly. Suppose you are provided with a 36.55 g sample of potassium…

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Q: When barium chloride (BaCl2) is dissolved in water, the water conducts electricity. In what form…

A: Given : Solute barium chloride i.e BaCl2  And solution of BaCl2 solution conducts electricity.

Q: What are the molecular and empirical chemical formulas of a compound made up of these molecules? H…

A: Molecular formula: It indicates the exact number of atoms of each elements present in the…

Q: 15. How many hydrogen atoms are present in the molecule shown? CH3 а. 8 b. 10 C. 12 d. 14

A: A hydrocarbon is an organic chemical compound composed exclusively of hydrogen and carbon atoms.…

Q: 1. A compound that contains only nitrogen and oxygen is 30.4 % nitrogen by mass; the molar mass of…

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Q: O موم H₂N 애 سلامة

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Q: Consider these compounds: A. CUCO3 В. Mns C. Ba3(PO4)2 D. Ca3(PO4)2 Complete the following…

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Q: Calculate the mass (in kilograms) of chlorine in 25 kg of each chlorofluorocarbon (CFC). a. CF,Cl2…

A: Solution-  mass of the clorine in the CF2Cl2-=molar mass of colorinemolar mass of the…

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Q: Sodium sulfate is used in the manufacture of detergents.a. Identify each of the component elements…

A: a) The elements which are all present in sodium sulfate has to be given.

Q: Aspartame is an artificial sweetener that is160 times sweeter than sucrose(table sugar) when…

A: The answer to the following question can be given as -

Q: Calculate the molar mass of Iron(III) chloride hexahydrate: FeCl3• 6H20. O 162.29 g/mol O 180.29…

A: Given  Molar mass of EDTA disodium salt dihydrate = 372.24 g/mole Molar Mass of FeCl3.6H2O Molar…

Q: 2. Calculate the number of molecules of water in a 500.0-mL glass of water. (Note: assume density of…

A: • As per bartleby guidelines, I need to solve only first question in case of multiple questions…

Q: If we wanted to produce 0.95 mol of carbon dioxide gas (CO2), how many moles of oxygen (O2) gas…

A: Given, moles of CO2(produced)=0.95 mol

Q: Which is NOT true of molecular compounds?A. Triple bonds are stronger than single bonds.B. Electrons…

A: All atoms try to satishfy the octet rule to gain stability. But there are exceptions to this rule.…

Q: Consider these compounds: A. PbCl2 В. NI(OH)2 C. NICO3 D. PbSO4 Complete the following statements by…

A: We would use Ksp value of all compounds to predict the relation between solubility.  Compound which…

Q: If atoms of the metal magnesium were to react with molecules of the nonmetal fluorine, F2 , how many…

A: Concept: In a reaction of metals with non-metals, there is transfere of electrons take place from…

Q: How many N atoms are present in 4.2 mg of theobromine?

A: Structure of theobromine -   Molecular formula of theobromine = C7H8N4O2 Molar mass = Mass of ( C x…

Q: Consider these compounds: A. CaSO4 B. COCO3 C. Fe₂S3 D. Zn3(PO4)2 Complete the following statements…

A: Solubility of compounds can be compared on the basis of their Ksp (solubility product constant)…

Q: One carrot may contain 0.75 mg of vitamin A (C20H30O). How many moles of vitamin A is this?  How…

A: We would use relation between mass ,moles , molar mass to calculate the values.

Q: d. What mass of P,010 (s) is required to react with 7.50 g of PCI5 ()?

A: Balanced Reaction of P4O10 with PCl5 :  P4O10(s) + 6PCl5(s) .....> 10Cl3PO(l) Solution for d…

Q: 25. The mass of one molecule of a molecular compound with a molar mass of 176.3 g/mol is A) 2.928 ×…

A: 25) Given, molar mass of the compound = 176.3 g/mol mass of 1 molecule of a compound = ? Note: 1 mol…

Q: b. Calculate the number of moles are represented by 24.75 grams of calcium chloride, CaCl. c.…

A: The answers to the following questions are given as:

Q: 1. CH CO2 H,O 2.

A: the equation is as follows:

Q: The semi-precious stone turquoise is a hydrate and with the chemical formula CuAl₆(PO₄)₄(OH)₈･4 H₂O.…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: Consider these compounds: A. Ba3(PO4)2 B. PbCro4 C. FezS3 D. Cuco3 Complete the following statements…

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Q: How many grams of NaF are needed to form 485 g SF4? 3 SCI2 (1) + 4 NaF (s) → SF4 (g) + S2C12 (I) + 4…

A: Given that -  Balanced Chemical equation is -  3 SCl2 (l) + 4 NaF (s) ---> SF4 ( g) + S2Cl2 (l) +…

Q: 16. How many grams of vanadium are in 8.64g V 2 O 5

A: gV2O5→gVmolar mass of V2O5=181.88g/molgiven mass of V2O5=8.64gMolar mass of vanadium=51 we have to…

Q: 7. The mass of 2.27 x 10-2 mol of a molecule is 1.0g. Identify the molecule. OC₂H6 Onone of these…

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Q: When each formula unit of potassium carbonate, K,CO, dissociates into ions in solution, there is…

A: Given compound K2CO3, to predict its decomposition in aqueous solution.

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Q: Consider these compounds: A. Cas B. Ag,Cro4 C. Fes D. Zn(OH)2 Complete the following statements by…

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Q: Consider these compounds: A. CaCrO4 B. Ba3(PO4)2 C. FeS D. Fe₂S3 Complete the following statements…

A: The question is based on the concept of solubility product principle.It states that when a weak…

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Q: Show your calculations clearly. Suppose you are provided with a 36.55 g sample of potassium…

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Q: 1. silver bromide a. Ag2Br b. Ag2Br2 C. AgBr2 d. AgBr 2. cobalt(III) oxide а. Соо b. Co2O3 с. Со2О…

A: Ionic compounds are formed by the transfer of electrons. The cation donates the electrons and the…

Q: 9. Calculate composition the mass percent of Mg(BrO3)2

A: To calculate the mass percent composition of Mg(BrO3)2 (magnesium bromate), we need to determine the…

Q: 24. Calculate the following: a. The number of moles of oxygen atoms in 4.35 × 1026 molecules of CO2…

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Q: 1. BH3, THF 2. H₂02

A: The hydroboration-oxidation reaction is a two-step hydration reaction that converts an alkene into…

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…

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Q: Which of the following compounds would form the largest number of ions when dissolved in water? a.…

A: when ionic compound dissolved in water its dissociate into it's constituents ions .

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.