A 0.8715 g sample of sorbic acid, a compound first obtained from the berries of a certain ash tree, is burned completely in oxygen to give 2.053 g of carbon dioxide and 0.5601 g of water. The empirical formula of sorbic acid is Select one: a. C2H4O2 b. C3H4O2 c. CH2O d. CH4O3 e. C3H4O

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Q: 21. What is the molar mass of baking soda (NaHCO3)? a. 84.0 g b. 52.0 g c. 201.2 g d. 45.5 g a O b C…

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Q: What is the empirical formula of an compound containing 0.830 % H; 45.8% Mn; 53.4% O?

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Q: Consider the following chemical reaction: 4 Al + 3 02 --> 2 Al203 If 12.85 g of Al reacts completely…

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Q: 12. What mass of carbon di a. 0.468 g b. 2.81 g

A: Given reaction,  C6H14 + 13CO2 -------->6CO2 + 7H2O we have to find mass of CO2 produced by 5.50…

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Q: Calcium carbonate (CaCO3), also called calcite, is the principal mineral found in limestone, marble,…

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Q: 1. Cu2+NaOH 2. CU2++ HNO3 3. Cuzt+NH 3 4. Cu2++H2S 1. Fe3t+ NaOH 2.Fe3t +HNO3 3-Fe3++ NH3 4o Fe3t+…

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Q: A mole of a compound composed of nitrogen and oxygen (N xO y) has a molecular weight of 92.0 g/mol.…

A: Given,  Empirical formula = NxOy  Molecular weight of NxOy = 92 g/mol

Q: Use the following data and steps below to calculate the formula of the copper chloride hydrate.…

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

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Q: An antifungal molecule has a molar mass of 2448 g/mol.  a. How many moles are there in a 1.567g…

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Q: Solid xenon trioxide was prepared by mixing water and solid xenon hexafluoride. A secondary…

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Q: A compound containing only hydrogen and carbon is burned in excess O2(g) to produce a total mass of…

A: Given: Compound contains only C and H. Mass of 0.3 moles of compound = 34.243 g. The total mass of…

Q: a. Write the balanced chemical equation for the diagram above b. If you have 0.031 moles of…

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Q: What is the percent composition by mass of Carbon in a 2.55G sample of propanol,  CH3CH2CH2OH The…

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Q: 2KF + Mg(NO3)2 --> MgF2 + 2KNO3 If 100 g potassium fluoride reacts with 100 g magnesium nitrate how…

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Q: Consider the following equation: 2AI(NO3)3 (aq) + 3Ca (s) → 3Ca(NO3)2 (aq) + 2Al(s) . What is the…

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Q: A 0.2500 g sample of a compound known to contain carbon, hydrogen and oxygen undergoes complete…

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Q: 18 22. How many H₂O molecules are contained in a glass that holds 250. g of H₂ g/mole?

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Q: 17. Please check to see if the following are balanced. If they are not, please balance them a. K +…

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Q: A 1.252-g sample of a hydrate of cobalt(II) chloride (CoCl2∙xH2O) is heated in a crucible, cooled,…

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Q: Complete and balance each combustion reaction equation: a. CH(g) + O2(g) c. CS:(s) + Oz(8) b. C(s) +…

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Q: 1. Caproic acid, which is responsible for the foul odor of dirty socks, is composed on C, H, and O…

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Q: 5. How many grams of Oxygen are needed to make 7.1 g of Chlorine? SeCl6 + 02 --> Se02 + Cl2 O 1.1 O…

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Q: Citric acid, C,H,0,, is found in many fruits How many O atoms are contained in 100. mg of the acid?…

A: According to avagadro's law1 mole of any molecule contains 6.023×1023 moleculesBy using this law we…

Q: a. How many N2 molecules are contained in 2.55 mol of N2? N2 molecules b. How many N atoms are…

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Q: The combustion of ammonia in the presence of excess oxygen yields NO2 and H2O: 4 NH3 (g) + 7 O2 (g)…

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Q: 106 Chapter Three Stoichiometru 2 What are the moles of LIOH? To find the moles of LIOH, we need…

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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.