1. How many H atoms are present in 12.6 g methane (CH4), a major Component of gas used in kitchen heaters in many countries? M of CH4 = 16 g/mol 2. Cinnamyl alcohol is an organic compound which is mainly used in perfumes and deodorants. Its molecular formula is C₂H₂O. How many grams of cinnamyl alcohol are there in a sample with 3.96 x 10¹ molecules? M of CaHio O = 134 g/mol. 19

Q: Assume you have the following unbalanced chemical reaction: H₂ + O2 H₂O If you have four moles of H₂…

A: Given reaction is , H2 + O2 -------> H2O Balanced reaction is, 2H2 + O2 -------> 2 H2O

Q: H CI XX H CI A) enantiomers B) diastereomers C) identical compounds D) constitutional isomers E) Not…

A: Enanotiomers have opposite configuration. Identical molecules have same configuration.  For…

Q: What volume (in mL) of 0.200 M HCI would be required to completely react with 6.65 g of Al in the…

A: Molarity of HCl = 0.200 mol/L Mass of Al = 6.65 g

Q: Curved arrows are used to illustrate the flow of electrons. Follow the curved arrows and draw the…

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Q: emperature remains constant answer to nearest whole numl

A: Ideal gas law equation is equation which obeys gas laws under all condition of temperature and…

Q: If the average speed of a carbon dioxide molecule is 410 m/s at 25°C, what is the average speed of a…

A: Here we are required to find the average speed of methane

Q: (3) Draw the most stable chair conformation of the following compound CI

A: Conformational isomers: The conformational isomers are formed by the rotation of a carbon-carbon…

Q: Refer to the periodic table and write the predicted electron configuration for each of the following…

A: Electronic configuration is the arrangement of electrons around the nucleus of an atom. Knowledge of…

Q: With reference to the whole class results, calculate percentage of error (E%) and RSD of b (i)-(iv)…

A: The formula for percentage error is as follows. % error=Approximate or estimated Value – Exact or…

Q: Complete the table below, using the diagram of an atom shown at right. name symbol 0 0 neutron Exak…

A: There are mainly three types of subatomic particles in an atom.  According to their mass, charge and…

Q: At high temperatures, iodine molecules can dissociate into iodine atoms. For the reaction I₂(g) ⇌ 2…

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Q: CH₂OH C=O но-с-н H-C-OH H-C-OH I CH₂OH in converting this open-chained structure to Haworth's, which…

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Q: A piece of iron weighs 3.5 x 108 ug (microgram). What is the weight of the iron in kilograms (kg)?…

A: The conversion of quantity from one unit to another unit is known as unit conversion. During the…

Q: In your own words, compare and contrast colloids, solutions and suspensions in studying Chemistry.

A: We have to compare and contrast colloids, solutions and suspensions in studying Chemistry.

Q: In this activity you are asked to draw a titration curve. Use a squared paper and draw the curve…

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Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: The conversion of units into one form or the other by mathematical operations is called as unit…

Q: Exercise Consider the following data to determine the effect of concentration on the ionization of…

A: Acetic acid is a weak acid that dissociates as- CH3COOH→CH3COO- + H+ Let X M of CH3COOH dissociates,…

Q: What are the colors of bromine and potassium permanganate? Write the chemical equations involved in…

A: Colors of inorganic compounds depends on the absorbing lights and chromosphere.

Q: What is the theoretical yield of ethyl chloride in the reaction of 19.5 gg of ethylene with 49 gg of…

A: Given -> Weight of ethylene= 19.5 gm  Weight of HCl = 49 gm Molar mass of Ethylene= 28 g/mole…

Q: What is the mass (in kg) of aluminum in 6.75×10^23 molecules of Al(C9H6ON)3? (MM Al = 26.98 g/mol)

A: Number of moles is calculated by dividing the given mass with molecular mass. In the given…

Q: many pi bonds are present in the structure shown below? many sigma bonds are present in the…

A: We have been given an organic compound and we are asked to tell the number of sigma and number of pi…

Q: Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst, to produce…

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is…

Q: How many moles of KCl are contained in each of the following? 109 mL of a 1.78 M KClsolution…

A: Molarity is defined as number of moles of solute divide by volume of solution in liter    mole =…

Q: Predict the major product for the following reaction sequence. HNOg H₂SO4 NO₂ NO₂ NO₂ NO₂ CI Cl₂…

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Q: Refer to the bar graph below, Explain why e.g. the n→π* interactions contribute more to the overall…

A: Proteins are complex molecules that are made up of long chains of amino acid residues. A linear…

Q: O Macmillan Learning Complete and then balance the equation for the neutralization reaction between…

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Q: 6. How would you complete the following syntheses? Provide the reagents and products of each step.…

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Q: A computer flashdrive has a mass of 3.45 g. What is the mass of the flashdrive in decigrams (dg)?…

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Q: A flask contains the following chemical system at equilibrium: Solid copper (II) carbonate…

A: Le Chatelier's principle: A change in one of the variable that describes the dynamic equilibrium of…

Q: Question: 1. For the reaction CO(g) + H₂O(g) = CO₂(g) + H₂(g) The following are the absolute…

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Q: Choose from the following statements that best describe a spontaneous process having ASsystem 0

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Q: A. Given the molar mass and molecular structures of the compounds, determine their most possible…

A: A). Vapor pressure, also known as equilibrium vapor pressure, can be defined as the pressure exerted…

Q: Which of the following scenarios would have a greater osmotic pressure? Explain your answer. a) 10 M…

A: Osmotic pressure (π) :-  The pressure that must be applied on solution side to just stop the osmosis…

Q: A strip of magnesium of mass 36.458 g is placed into a beaker of dilute sulphuric acid. Calculate…

A: Balanced reaction :- Mg + H2SO4 ---> MgSO4 + H2    24 g of  Mg gives 2 g of Hydrogen  So, 36.458…

Q: Discuss the 1. Alkyl halid 2. Allylic hali 3. Benzylic ha

A: Organic chemistry is branch of chemistry in which we deal with compounds made up of carbon and…

Q: Calculate the value of Eºcell for the following reaction: a. -1.37 V b. -4.37 V c. 4.37 V d. -11.6 V…

A: The reaction is :  2 Au(s) + 3 Ca2+(aq) ==> 2 Au3+(aq) + 3Ca(s)  Oxidation:  When an element lose…

Q: A sample of nitrogen gas has a volume 13.4 L at 1.4 atm and 54.2 °C. If the pressure is increased to…

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Q: How many ammonium ions are in 6.74 x 1024 formula units of ammonium carbonate? number of ammonium…

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Q: Compare the structures of 1,4-pentadiene and divinylamine: 1,4-Pentadiene The first compound does…

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Q: Correct any answers that have the incorrect number of significant figures. (4.62 × 1012) ÷ (3.3 ×…

A: The given expression is  (4.62 × 10 12) ÷ (3.3 × 10-4) = 1.4 x 1016

Q: Draw the skeletal structures of the possible isomers of C3H5CI including configurational isomers.

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Q: The freezing point of a 0.0797 m solution of ammonium chloride was found to be 0.184 °C. What is the…

A: Molality= 0.0797 m   Freezing point of solution= 0.184°C  Kf(water) = 1.86°C/m

Q: Shown below is T-v plot for a pure substance, where , ,  and  are known values.…

A: Given is a T-V plot for a known substance. We have to specify the regions and the points.

Q: What is the freezing point (in K) of a solution made by dissolving 17.013g of CCl4 in 130.0 g of…

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Q: Construct a titration curve by plotting pAg* VS. VARNO, added.

A: Clearly, in the titration, the equivalence point will come when VAgNO3×[AgNO3] = VNaCl×[NaCl]…

Q: A diprotic acid, H₂A, has acid dissociation constants of K₁₁ = 3.75 x 10 and K₂ = 5.10 × 10-¹¹.…

A: To calculate the concentration of H2A, HA- and A2-, for the following solutions: (a) 0.195 M…

Q: Complete the table below, using the diagram of an atom shown at right. name symbol 0 è Properties of…

A: We have been given the diagram of an atom. We have been given the table in which location of…

Q: Calculate the cell emf for the following reaction at 25°C Answer: Ni (s) + 2Cu²+ (0.010 M) → Ni²+…

A: Given cell reaction is  Ni(s) + 2Cu2+(0.01 M) ----> Ni2+(0.0010 M) + 2Cu+(1.0 M)  We need to find…

Q: Instructions Q1 Give the values for n, 1, and m₁ for each orbital in the 2p sublevels (subshell)

A: n represent   principal  quantum number  l  represent  azimuthal quantum number  ml represent…

Q: Calculate the equivalent weights of the following substances as acids or bases:       (a) HCl, (b)…

A: Equivalent weight of an element is defined as the amount of the substance which can combine with 1 g…

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.