When propane is burned, the balanced reaction is: C3H8(l) + 5 O2(g) -> 3 CO2(g) + 4 H2O(g). If 23.72 g of oxygen are consumed, how many liters of water vapor at 889.4 torr and 40°C are produced?

Q: The indicator bromothymol blue is yellow in a solution whose pH is less than 6.0, green if the pH of…

A: Given--<>  [H3O+] = 3.45 ×10-3 M what is color of bromothymol blue = ?

Q: Part 1. Reaction (12) Test tube with thermometer: aqueous sodium hydroxide Test tube of solution…

A: Write a balanced molecular equation for this combination.

Q: Write a balanced molecular equation for this combination. If a reaction occurred, write a complete…

A: Given that the reactants are aqueous strontium nitrate and aqueous sodium carbonate. We have to…

Q: b) Use curved arrow formalism to draw the mechanism of the reaction shown in a). product(s) Brz…

A: ->First of all alkene reacts with Br2 and cyclobromonium ion is formed because there is present…

Q: "Calculate the mass of diethyl ether (in grams) given the values listed in the reaction scheme. Keep…

A: To solve this question, we need two main components : Volume of diethyl ether. Density of diethyl…

Q: What would be an appropriate term to describe molecules B and C? in A В Me `Me Me resonance…

A: Molecule A is conjugated. B and C are skip diene

Q: What is the Acid in the reaction below? NH4+ + H2O → NH3 + H3O+ Choose the right answer in the…

A:

Q: Write a chemical equation in the form A + B = C + D

A: In equation  A+B→C+D  A and B are reactant ,C and D are product

Q: How many moles of gold are present in a sample containing 7.50 x 1024 atoms of gold?

A: Given- Number of atoms of gold = 7.50 ×1024 atom

Q: 30.0 mL ethanol to make a 5.88 of ethanol in butanol?

A:

Q: 1.00 mole of an ideal diatomic gas (for which Cv 5R/2) is in a rigid container with a constant…

A: Given- Mole = 1 mole Cv = (5/2)R Volume = 2 L T1= 250 K T2= 300 K

Q: Draw the condensed structural formula for monounsaturated omega-6 fatty acid with 10 carbon atoms .

A: Fatty acids are carboxylic acids (R-COOH) with a long chain alkyl group (R).

Q: Arrange the following carbocations in the order of increasing stability (least stable to most…

A: Carbocations are sp2 hybridised Carbon containing species which are unstable cations. These are…

Q: In which compound does hydrogen have an oxidation state of –1?    a.) NaH b.) HCl c.) H2O d.) NH3

A:

Q: List 3 common weak acids. Include both chemical formula and chemical name. 1. 2. 3.

A: Weak acid dissociate less in solution

Q: Iron (III) oxide and metallic aluminum produce iron and aluminum oxide in a few seconds. Find AH for…

A: Hess's law of constant heat summation states that, the chanhge in enthalpy in any chemical reaction…

Q: When propane is burned, the balanced reaction is: C3H8(l) + 5 O2(g) -> 3 CO2(g) + 4 H2O(g). If 23.13…

A: Given :-  C3H8(l) + 5 O2(g) -> 3 CO2(g) + 4 H2O(g) Amount of O2 consumed = 23.13 g  To calculate…

Q: 3. Fill the boxes with the missing reactants, reagents, or the major product(s) expected from eacn…

A:

Q: 20. Enumerate the equations or formulas for pH, pOH, [H+] and [OH-]. а. рH b. pОH с. [Н+] d. [OH-]

A: Write formulas of the given--+

Q: Calculate the OH– concentration & pH of a 0.45 M NH3 solution (Kb=1.75 × 10–5)

A: NH3  is a weak base Given dissociation constant of NH3 is (Kb) =1.75×10-5 Concentration of NH3 is =…

Q: Determining the formula of a hydrate: NOTE: SHOW ALL STEPS!! A sample of copper (II) sulfate…

A:

Q: 8. What mass of propane, C3H3, must be burned in order to produce 76,000 kJ of energy? Circle one:…

A: Given, C3H8 + 5O2 ➝ 3CO2 + 4H2O + 2200 kJ mass of propane, C3H8 must be burned in order to produce…

Q: N2O4 (g) ⇌ 2NO2 (g)    You are observing this reaction in a closed container. What will happen to…

A:

Q: Balance the following oxidation-reduction reactions that occur in basic solution (Use the lowest…

A: A reducing agent is one of the reactants of an oxidation-reduction reaction which reduces the other…

Q: How much energy is released when 2.50 metric tons of H 2 gas undergoes nuclear fusion?

A:

Q: Check the box next to each molecule on the right that has the shape of the model molecule on the…

A:

Q: The equilibrium concentration for a reaction were found to be the following 0.05M  [ N2] ,   1.87M […

A: Kc is the ratio of the equilibrium concentrations of product over equilibrium concentrations of…

Q: What is oxidation number of O in O2 ?   Choose the correct answer from the given choices below: a.)…

A: We have to predict the oxidation number of oxygen.

Q: Which element is used to construct the standard half-cell?

A: Here given ,Multiple choice question

Q: Br CH3CI AIC13

A: ->In the given reagent AlCl3 is Lewis acid. Which is used for generating electrophile. But here…

Q: energy

A:

Q: 1. NABH, (0.5 eq.), CH3OH, 0° C H. 2. HCI, H20 HO, OH HO, OH OH HO, HO, H.

A:

Q: 7. How much heat will be absorbed when 13.7 g of nitrogen reacts with excess O2 according to the…

A: Recall the reaction, N2 + O2 ----> 2NO ∆H = +180 KJ

Q: Ternary Ionic Compounds Name For 1. iron(II) nitrate 2. copper(I) carbonate 3. aluminum phosphate 4…

A:

Q: What is the purpose of adding charcoal in toothpaste formulation? Is it approved by American Dental…

A: Ans. Purpose of adding charcoal in toothpaste formulation: Recently, charcoal-containing…

Q: 1) The decomposition of N2O5 is an important process in the atmosphere. The half life is 2.05 x 10ʻ…

A: It is an example of first order kinetic reaction  Here we are required to find the time for a sample…

Q: A chemist found that a reaction did not take place under any set of conditions. If the chemist added…

A: A reaction may take a few seconds or several years to form the product. So if we add catalyst to…

Q: The following titration curve is expected from which acid-base pair? Equivalence Point pH > 7 pH…

A: To determine acid base pair , we would use pH at equivalence point and trend of curve.

Q: The element gallium (Ga) freezes at 29.8°C its ΔHfus = 5.59 kJ/ mol. Calculate the value of ΔS when…

A: Here we have to determine entropy change to freeze 30 g of gallium (l) to gallium (s) at it's…

Q: What volume in liters is occupied by 20.6 g of C2H2 at 734 mm Hg and 69° C?

A:

Q: Concentration of hydrochloric acid (M) 2.07 Concentration of sodium hydroxide (M) 2.09 Calorimeter…

A: The balanced equation for the neutralization reaction of HCl(aq) and NaOH(aq) is: HCl(aq) + NaOH(aq)…

Q: Which change in oxidation number represents reduction?    Choose the right answer in the given…

A: Ans : b -1 to -2  In option a,c,d the oxidation number is increases hence these option show…

Q: en deciding between 1,2-addition, 1,4-addition and the major reaction pathway, there's ually an…

A:

Q: Which of the following statements about concrete is FALSE?

A: Concrete is a mixture of paste and aggregates. The paste is composed of portland cement and water.

Q: What is the relationship between the standard cell potentials, E°, for the followng two galvanic…

A:

Q: 19. Which one of the following statements regarding a weak base is not correct? a. A weak base…

A: Which one of the following statements regarding a weak base is not correct ?

Q: The decomposition of nitramide in an aqueous solution at 25 °C NH2NO2(aq)N2O(g) + H2O(l) is first…

A:

Q: Which of the following increases the value of Keg for the reaction below? bə 2 CO2(e) 2 20CO() +…

A: For an equilibrium reaction , equilibrium constant is only affected by change in temperature. Any…

Q: If the activation energy of a chemical reaction is 185 kJ/mol and its AH is 24 kJ/mol, what would…

A: Given-> Activation energy of forward reaction (Ea) = 185 KJ/mole ∆H = 24 KJ/mole

Q: Which cannot be a Bronsted-Lowry acid?

A: This is multiple choice question.

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.