How many molecules are contained in each of the following? (a) 9.6 mol C2H4              (c) 23.2 g CH3OH (b) 2.76 mol N2O             (d) 32.7 g CCl4

Q: I Review I Constants I Periodic Ta Benadryl is an over-the-counter drug used to treat allergy…

A: Mole concept:  A mole is separate as the quantity of material that contains atoms, molecules, ions,…

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A: Answer:- This question is answered by using the simple concept of determination of empirical formula…

Q: lable Below, what is the percent composition of A in the compound A2E? Round to the nearest 0.01 and…

A: Given-> Atomic mass of A = 9.68 g/mole Atomic mass of E = 42.59 g/mole

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A: Answer

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A: Balanced equation :-  A chemical equation is said to be balanced if the number of atoms of different…

Q: A patient is having an allergic reaction and takes a 50.0 mg tablet of the over the counter…

A: The number of moles links the given mass and number of molecules.here moles=given massmolar…

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A: The 'number of moles' is a unit to represent the amount of atom or molecule. One mole of any…

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Q: The periodic table says the atomic weight of chlorine is 35.5, but not the molecular (molar) mass…

A: Atomic weight of Cl = 35.5 Cl2 gas contains 2 atoms of Cl

Q: 7-9. An organic compound is composed of 40.92 percent carbon, 4.58 percent hydrogen, and 54.50…

A: Empirical formula of a compound can be defined as the simplest whole number ratio of all atoms…

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Q: An important nutrient that is known to consist of the elements Carbon (C), hydrogen (H) and Oxygen…

A: The mass of C and H is 40.9 g and 4.58 g respectively. Assume that the total mass of the compound is…

Q: H2C2O4. What amount is represented by 18.0 g of oxalic acid? How many molecules of oxalic acid are…

A: No of molecules=mole × avagadro number

Q: Given the equation: HCO3 (aq)+ H20O= Co3(aq)+ H30 (aq). Identify the C HCO3 H20 Co3 2 H30*

A: Given , chemical reaction : HCO3- + H2O ---> CO32- + H2O

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A: a.) To calculate number of molecules , we would use Avogadro's relation.  b.) First we would…

Q: ntal analysis of 49.48% carbon, 5.190% hydrogen, 16.47% oxygen and 28.85% nitrogen. It has a molar…

A: From percent mass can be calculated, after knowing the mass it can be converted into moles and then…

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Q: tetraphosphorous decaoxide

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Q: quation below what is the mole ratio between O2 and CO2? + 8 O2 (g) → 6 H2O (g) + 5 CO2 (g) =8 =5 CO

A: A mole ratio is a conversion factor.  It  relates moles of any two substances in a chemical…

Q: :12hcyA/viewt What is the mass of 1.34x10^25molecules of Magnesium? * O 204g O 541g O 72,900g O…

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Q: When one volume of CO reacts with one volume of C12 phosgene is obt only product. What is empirical…

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Q: A compound has an empirical formula of CFBrO and a molar mass of 254.7 g/mol. 1) What is the value…

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Q: Zn + 2HCl → ZnCl2 + H2 How many atoms of hydrogen (H) are present on both sides of the equation?…

A: Given, Zn + 2HCl → ZnCl2 + H2

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Q: When ammonia gas, NH3, and oxygen gas, O2, react to form nitrogen gas and water, for each mole of…

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Q: Hydrated nickel(11) is a beautiful, green, crystalline compound. When heated strongly, the compound…

A: Initially we find the loss of water moles and NiCl2 moles after dehydrated. Moles= weight/molar mass

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A: Write coefficient of O2 in the given reaction after balancing ?

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Q: What are the molecular formulas of the following compounds? show solution if applicable Compound…

A: Compound consisting of 49.5 % C , 5.20 % H and 28.0 % N with molar mass of 194.1 g/molCH3 with…

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Q: How many moles is each of the following? show complete solution pleaseee 15.5 g SiO2 0.0688 g AgCl…

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Q: What is the coefficient in front of the O₂ when the equation below is balanced (using only whole…

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Q: Aluminium has a denisty of 2.70 g/cm^3.  How many moles of aluminum are in a 13.2 cm^3 block of the…

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Q: How many moles of MgCO3 are present in 252.939 grams of MgCO3?

A: Number of moles is given by the ratio of mass of the substance to that of the molar mass of the…

Q: Complete the following table.   Formula Number of SO42−SO42− units Number of sulfur atoms Number…

A: For one CaSO4 unitthere is one SO42- unit,there is one sulfur atom,there are 4 oxygen atomsand there…

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Q: Given the reaction below, if  3.64 moles of Vanadium (V) were reacted with 4.88 moles of Oxygen (O2)…

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Q: a) when heated to 220°C, BeC2O4·3 H2O(s) dehydrates completely as represented below BeC2O4·3 H2O —>…

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Q: Which of the following has the highest total number of atoms? Select one: a.2.6 moles of Ca(OH)2…

A: 1 mol  = 6.022 × 1023 atoms

Q: A student is running an experiment in which 28.9 grams of CoSO4 is needed, but the only jar of…

A: Mass of CoSO4 ( anhydrous ) = 28.9 g Molar mass of CoSO4  = 154.99 g/mol Molar mass of CoSO4 . 7H2O…

Q: The CSI crime lab found the empirical formula of a compound to be C2H3O. The molar mass of the…

A: Molecular weight of empirical formula C2H3O is (12×2+1×3+16)=43 Molecular weight = n × empirical…

Q: 15. Citric acid, C6H807 (aq), is often used as an additive to make candies "sour." a. Draw a…

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Q: * Question Completioh Status! P205 Phosphorus Oxygen 1 molecule of P205 2 atoms of P 5 atoms of O 3…

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Q: What is the molar mass of ammonia: NH3? Round answer and elements to the tenths place. (N = 14.0, H…

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Q: A hydrocarbon mixture consists of 85.71% carbon and 14.29% hydrogen by mass. What is the empirical…

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Q: Part A The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular…

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Q: How many moles of Selenoyl fluoride, SeO2F2, are present in 25.4 g of Selenoyl fluoride? Answer:…

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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.