I figured out that .0068 moles CaCl2x2H2O are present in 1.00g CaCl2x2H2O. My next question is "How many moles of pure CaCl2 are present in one gram of CaCl2x2H20?

Q: How many grams of ammonia (NH3) will be required to produce this amount of nitrogen

A: Balanced equation:               2NH3 - 3H2 + N2 Moles of N2 =16.16g/28gmol-1 =0.8978mols

Q: A 71.46-gram sample of magnesium hydrogen sulfate [Mg(HSO4)2] would contain how many moles? Is it…

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

Q: 2 NH3   +  3 CuO   -->  3 Cu   +   N2   +   3 H2O In the above equation how many moles of  N2 can…

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Q: A compound containing only carbon, hydrogen, and oxygen is analyzed using combustion analysis. When…

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Q: This is the chemical formula for nickel tetracarbonyl (a powerfully poisonous liquid used in nickel…

A: Given, Chemical formula of nickel tetracarbonyl complex is Ni(CO)4  Moles of nickel in nickel…

Q: Calculate how many moles of CaCl2•2H2O are present in 1.50 g of CaCl2•2H2O and then calculate how…

A: Initial mass of calcium chloride di-hydrate = 1.50 g Molar mass of calcium chloride di-hydrate =…

Q: Consider a sample of carbon tetrafluoride that contains 1.09 × 10²⁴ atoms of fluorine. 1.) Using…

A: In international system of unit, there are seven basic units. Out of those seven unit Mole is one of…

Q: 1. Mass of test tube + MNO² = 21.5403g                       21.5403g 2. Mass of the test tube +…

A: since you have posted a question with multiple subparts, we are entitiled to answer only first 3…

Q: What was the percent of potassium chlorate in the mixture

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Q: How many moles of CH4 are present in 137.96 g of methane?

A: Given :  Mass of CH4 = 137.96 g  molar mass of carbon = 12.011 g/mol molar mass of hydrogen = 1.0080…

Q: Complete combustion of 4.004.00 g of a hydrocarbon produced 13.013.0 g of CO2 and 4.004.00 g of H2O.…

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Q: b. If the chemical reaction uses 23.45 grams of N2 gas, then how many moles of NH3 will be produced?…

A: Given , balanced chemical equation N2 + 3H2 -> 2NH3  b) 23.45 g of N2 c) 63.2 g of N2  To find…

Q: Calculate the moles of glucose in 1.0253 g of glucose, C6H12O6. Then calculate the moles of each…

A: Given :-  Mass of glucose = 1.0253 g  To calculate :-  Number of moles of glucose and also determine…

Q: How many molecules are in the sample? 87 g CCl4 Express your answer using two significant figures.

A: Number of moles can be calculated as follows: No. of moles = MassMolar massNo. of moles = 87g153.82…

Q: FOLLOW-UP QUESTIONS (Show all your work) 1. A hydrated substance was found to have the following…

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Q: Florasulam is an herbicide with the chemical formula C12H8F3N5O3S. Answer the questions below…

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Q: In a universe far, far away, there exists an alien world where they have a different periodic table,…

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Q: A compound containing only C, H, and O, was extracted from the bark of the sassafras tree. The…

A: Given,47.3 mg sample produced 128 mg of CO2 and 26.3 mg of H2OMolar mass of carbon = 12.0107Molar…

Q: How many mols are in 97.96 g of propanol (C3H8O)? Enter the value with enough significant digits, do…

A: Moles of any substance = (mass given)/(molar mass)    -------(1) Given:   Mass of propanol = 97.96 g…

Q: 0.333 g of a hydrocarbon (CxHy) was analyzed by combustion analysis and 1.009 g of CO2 (MM = 44.01…

A: We have to calculate the moles of carbon.

Q: An organic compound consists of carbon, hydrogen and nitrogen only. Complete combustion of a 150. mg…

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Q: A typical deposit of cholesterol, C27H46O, in artery  is detected to have a mass of 3.9 mg. How many…

A: Given: Mass of C27H46O = 3.9 mg = 0.0039 g                                   (Since 1 g = 1000 mg)

Q: A 1.526-g sample of a hydrate of magnesium sulfate (MgSO4∙xH2O) is heated in a crucible, cooled, and…

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Q: Maggie filtered out a sample of copper (II) chloride, CuCl2 from a local pond, and found its mass to…

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Q: Moles of Zn(NO3)2Zn(NO3)2 in 151.50 g of this substance

A: Interpretation -  To determine the moles of Zn(NO3)2 in 151.50 g of this substance. One thing i want…

Q: 0.279 g of the hydrate CoCl2•nH2O is heated to produce 0.197 g of anhydrous CoCl2 (MM = 129.83…

A: The water of crystallization means having a fixed number of molecules present in one formula of a…

Q: 2 NH3 + 3 CuO --> 3 Cu + N₂ + 3H₂O In the above equation how many moles of N₂ can be made when 190.1…

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Q: How do you calculate the number of moles in each sample? Express answer with appropriate units…

A: The relation between mole and mass of any substance is given as - Mole = mass /molar mass

Q: A certain compound contains carbon, hydrogen and chlorine only. Complete combustion of 0.425 g of…

A: Given data: Mass of compound = 0.425 g, Mass of water produces = 0.179 g, The compound is 59.19 % by…

Q: 4. 4.00 moles of sulfur dioxide SO2? 2.50 moles of methane CH,? How many moles are there in: 6.…

A: Each mole of any substance has Avogadro number of molecules. Each moles of any substance has…

Q: S + 6 HNO3 --> H₂SO4 + 6 NO2 + 2H₂O In the above equation how many moles of water can be made when…

A: We have to calculate moles of water in the reaction that can be made from given amount of HNO3

Q: How many grams of PCl3 would be needed to produce 8.75x1024 atoms Cl? digit _______ (your answer…

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Q: tion: CH4 + 4CI2 --> CCI4 + 4HCI How many moles of CCI4 is formed by the reaction of 4.5 moles of…

A: The question is based on the concept of reaction Stoichiometry. we have to calculate number of moles…

Q: c) An organic compound consists of carbon, hydrogen and sulfur only. The percentage of carbon by…

A: Given  mass % of C = 30.27 %  total mass of compound = 1.367 g  mass of SO2 = 1.765 g    Required…

Q: (c) An organic compound consists of carbon, hydrogen and sulfur only. The percentage of carbon by…

A: We have to find empirical formula for given compound

Q: another reaction to produce 6.0 g of C4H9NO5S. These 6.0 g of C4H9NO5S react with excess CH3OH to…

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Q: 0.279 g of the hydrate CoCl2•nH2O is heated to produce 0.197 g of anhydrous CoCl2 (MM = 129.83…

A: Use concepts Formula is COCl2.3H2O Mass of H2O = 0.08g Mass of COCl2= 0.195g

Q: The reaction of methane (CH4) and Cl2forms chloroform (CHCl3) and HCl.CH4+ 3 Cl2→CHCl3+ 3 HClWhat is…

A: Answer: Maximum mass of chloroform (CHCl3) produced is 17.96 g.

Q: data from experiments to find the molecular formula of benzocaine, a local anesthetic, which…

A: In the given question we have to calculate the molecular formula of benzocaine. First of all we have…

Q: 0.279 g of the hydrate CoCl2•nH2O is heated to produce 0.197 g of anhydrous CoCl2 (MM = 129.83…

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Q: Number of atoms of C in 10 moles of C4H10 are:     240.88x10^23 24.09x10^23 4.15x10^23…

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Q: buprofen is an anti-inflammatory with the formula C13H18O2 A. What is the molar mass of ibuprofen?…

A: The answer can be calculated by the simple unitary method.

Q: If a test tube has 2 moles of a blue liquid and a different test tube has 2 moles of a red solid…

A: Given: Moles of blue liquid in test tube 1 = 2 mol. And moles of red solid in test tube 2 = 2 mol.

Q: many moles are in 3.46 x 10^22 molecules of phosphoric acid?

A: Given :  Molecules of phosphoric acid = 3.46 x 1022

Q: S    +   6 HNO3  -->   H2SO4   +  6 NO2   +   2 H2O In the above equation how many moles of water…

A: First We have to determine moles of nitric acid.

Q: Calculate the moles of anhydrous (dry) KAl(SO4)2 that were present in the sample. Show all work to…

A: Since you have posted a question with multiple sub-parts, we will solve the first three subparts for…

Q: A) How many grams of Mgl2 is present in a 0.4745 g sample that is 53.21% Mgl2 (278.11 g/mol)? B)…

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Q: however confused by the multiplication of each. For example, the first one mentions  x 3 to CuBr2…

A: Balancing is done in order to get equal moles of each atom on both side of reaction.  For this we…

Q: Daledalin is an antidepressant with the chemical formula C19H24N2. Answer the questions below…

A: Hi there, as there are multiple questions posted. We are answering the first question. If you need…

Q: Consider the following reaction: 6 S2Cl2 (l) + 16 NH3 (g) → S4N4 (s) + S8 (s) + 12 NH4Cl (s) What is…

A: Given dataMass of disulphur dichloride= 192.7gMass of ammonia = 122.36449999999999g…

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.