When the substance shown below burns in oxygen, the products are carbon dioxide and water. How many grams of water are obta from burning 4.76 g of this substance? g H20 mass -

Q: Consider the following rate law: rate = k[acetone][l2]°[H*]ª What effect would decreasing the concen...

A: Given, Rate law expression: rate = k[acetone]1[I2]0[H+]1 Here, k = rate constant [acetone]1 = concen...

Q: Write the equilibrium constant expression for this reaction: H;PO,(aq) - 3 H (aq)+PO (aq)

A:

Q: 21 mL sample of 0.15 M KOH is titrated with 0.125 M HClO4. What is the pH after 23 mL of titrant is ...

A: Volume of KOH = 21 mL or 0.021 L  Molarity of KOH = 0.15 M  Volume of HClO4 = 23 mL or 0.023 L Molar...

Q: Example of Soil Colloids and importance in the improvement of Agricultural Practice?

A: Soil colloids are the most active portions of the soil because of their large surface area and it de...

Q: The following reaction is at equilibrium at a pressure of 1 atm, in a closed container: C2H2(g) + 2H...

A: We have to predict the direction of reaction   

Q: Cesium (Cs) is element 55 on the pe 3.95x1023 atoms of Cs. Calculate th mol Cs

A: Given that, Atoms of CS= 3.95 ×1023 atoms  Then,  

Q: What does the specific heat of a substance tell you when you compare it to the specific heat of anot...

A: In the given question we need to tell how would we compare substances on the basis of their specific...

Q: Consider the following Lewis structure. (Lone pairs are not drawn in.) What is the hybridization of ...

A: An atom with 4 electron pairs is sp3 hybridized.  An atom with 3 electron pairs is sp2 hybridized. A...

Q: Rates of a Reaction 0.10 0.08 0.05 0.03 0.00 10 20 30 40 t (min) - A C Concentration (M)

A: Here from concentration versus time graph plot curve ,we can determine the concentration of reaction...

Q: Referring to the above question, what are the units for the rate constant k? O s-1 O s-1M-1 O sM O s...

A: We would use given value of slope to determine the value of slope and its unit. 

Q: Calculate the amount of heat released during the combustion of: a.) 0.30 mol of C3H6O (acetone) b.)...

A:

Q: Balance cach redox reaction in BASIC SOLUTION 1. Cr (OH)a + I0 →I + CrO4 2- - 2- 2- 2. Cra 07 + SO, ...

A: Given equations are : 1. Cr(OH)3 + IO3- -----------> I- + CrO42-  2. Cr2O72- + SO32- -----------&...

Q: What is the overall order of the following reaction, given the rate law? 2 X + 3 Y → 2 Z Rate = k[X]...

A: For the given reaction., 2X + 3Y     ----->       2Z According to Rate law Rate of the reaction i...

Q: A 0.512 g sample of CaCO3 is dissolved in 12 M HCl and the mixture is diluted to 250 mL. A small amo...

A:

Q: Consider the following reaction: SO2 (g) + NO2 (g) = SO3 (g) + NO (g) Keg = 0.33 A reaction mixture ...

A: Q is the reaction Quotient ,which measure the relative amount of product and reactant at any time . ...

Q: D: Define and draw the Unit Cell and give an example.

A: Unit cell can be defined as the smallest repeating unit in space lattice which, when repeated over a...

Q: According to the following reaction, how many grams of copper(II) nitrate will be formed upon the co...

A:

Q: Qualitatively pre entropy For each chemical reaction listed in the first column of the table below, ...

A: Reactions : MgCl2(s) + H2O(L) ---> MgO(s) + 2HCl(g)  2C2H6(g) + 7O2(g) ---> 4CO2(g) + 6H2O(g) ...

Q: Acetylferrocene is about 1000 times more toxic than ferrocene, or about the same as potassium cyanid...

A:

Q: 1. Define Avogadro's number? explain w/ applications 2. What is a mole? 3. How are Avogadro's numb...

A:

Q: How many moles of sugar was added to 82.90 g of ethanol to change the freezing point of ethanol by 2...

A:

Q: molarity of

A:

Q: Define and explain the difference between molecular weight and atomic weight. With examples. 5. Cal...

A: Atomic mass is the mass of an atom. 

Q: What carbonyl compound was used to synthesize the product shown below? HO. T. но O methanol and etha...

A: Carbonyl compound (aldehyde and ketone) reacts with an alcohol to form hemiacetal in the presence of...

Q: An analytical chemist is titrating 105.3 mL of a 0.8400M solution of benzoic acid (HC H,CO,) with a ...

A:

Q: What is the mass in grams of Pblz (s) formed if 2.23 g of potassium iodide is reacted with excess le...

A: Given that, Mass of KI = 2.23 g  Molar mass of KI= 166 g mol-1 Molar mass of PbI2 = 461.01 g mol-1  ...

Q: What is the pH of a weak base-strong acid titration when 20.0 mL of 0.56 M of NaOCl (Ka = 3.0*10-8) ...

A:

Q: 0.1 g of the mixture of na2so4 and k2so4 is taken and 100 ml of solution is prepared. 10 ml of this ...

A:

Q: few hydrogen and oxygen molecules are introduced into a container in the quantities depicted in the ...

A:

Q: Experiment: UV-Vis Spectrophotometry and Beer’s Law Absorption of Light of Dyes in Beverages   5 ...

A: this is an example of dilution law here we are required to find the concentration of yellow dye in t...

Q: If a 1.065 g sample of magnesium oxide of 84.736% were treated with 50 mL of 1.017 N sulfuric acid, ...

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: Nitrogen dioxide is produced by reacting nitric oxide and oxygen: 2NO(g) + 02(s) $2NO2(g) ; AH° = -1...

A: Given, 2NO(g) + O2(g) ⇔ 2 NO2(g) The reaction is exothermic as the sign of the enthalpy is negative.

Q: A +B → C Initial Rate of [A] [mol/L] [B] [mol/L] Expt. Formation of C 0.10 0.10 3.0 x 10-4 M-min- 0....

A: The order of reaction can be determined by compairing the rate of expression of any two experiments.

Q: A reaction is studied and found to have the two step mechanism outlined below. 5A+4B C k = 5.74 a 10...

A: Rate of a reaction is determined its slowest step. Also the rate law of a reaction depends on the sl...

Q: 1. At a certain temperature, the value of K, for the following reaction is 4.2 x 10: Na) + Ozce) = 2...

A:

Q: ase balance the ionic equation below & 20. í Cu(NH3)4(H2O)2]2* () + _H2SO4 (2) → _CUSO4 ee) + _(NH4)...

A:

Q: (e)

A: Complete solution is given below in next step with these conformation.  

Q: ii) What are the adjusted retention times for components A and B? iv) What is the relative retention...

A: 3 . For component A = 8-1.2=6.8 For component B = 10-1.2 = 8.8 4. Separation factor = 1.29

Q: For a gaseous reaction, standard conditions are 298 K and a partial pressure of I bar for all specie...

A:

Q: Use the given: I. 0.02 m of glucose, II. 0.03 m of FeCl 3,  III. 0.02 m of NaCl, IV. 0.03 m of MgCl ...

A:

Q: The bond energies of Cl-Cl, C-C and C-H are 59 Kcal/mole, 90 Kcal/mole and 105 Kcal/mole respectivel...

A: The breaking of a bond requires the absorption of energy. The higher the stability of bond, the high...

Q: The following reaction is at equilibrium at a pressure of 1 atm, in a closed container: NaOH(s) + CO...

A: Le Châtelier's Principle doesn't apply for a reaction involving two different phase such as solids a...

Q: Calculate the solubility at 25 °C of BaCro, in pure water and in a 0.0140M BaCl, solution. You'll fi...

A:

Q: Use MO theory to determine the bond order for each of the following species. a) 02 b) CN+ c) NO2- d)...

A: Determine bond order of the given species---

Q: the attraction forces that allow water to function as a universal solvent are? a. van der waals forc...

A: The characteristics of van der Waals forces are,  Weak intermolecular forces Depend on the distance...

Q: A chemist determined by measurements that 0.0450 moles of gallium participated in a chemical reactio...

A:

Q: A sample has has a volume is 265 cm^3 at a temperature of 920 Torr and 37 Celsius. Find the volume o...

A: Given that, V1= 265 cm3  P1= 920 torr  T1=37°C = (37+273)K = 310 K  V2= ? P2= 1 atm = 760 torr (STP)...

Q: Consider the following reaction and its equilibrium constant: 12 (g) + Br2 (g) ÷ 2 IBr (e) K = 1.1 x...

A:

Q: A. В. `NH2 D. STransmittance STransm ttance * 8 2 S 8 3 8 3571.14 3354.51 3189.74 2057.18 69 SELE KR...

A:

Q: Arrange the following in order of highest to lowest concentration of OH ions, i.e., the most basic t...

A:

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.