QUESTION 16 A compound is found to contain 26.56% potassium, 35.41% chromium, and the remainder oxygen. Find its empirical formula K2Cr2O7 O K₂Cr209 O K₂Cr₂03 O K5Cr207

Q: A Select each that is a terminal alkyne. -CH₂-CEC-H B H-C 0: 11 C-CH₂-C-H LL -CH₂-CC- с F CH₂-C CH3…

A:

Q: Question 19.f of 23 Uranium hexafluoride, UF, is an important compound used in the enrichment of…

A: What is the molecular geometry of UF6 ?

Q: What is the formula of the yeast catalyst used in a reaction?

A:

Q: A 1.0L buffer solution is 0.250M HC2H3O2 and 0.060M NaC2H3O2. Which of the following actions will…

A: The mixture of a weak acid and its salt will form a buffer solution.

Q: Suppose you burned 0.300 g of C(s) in an excess of O₂ (g) in a constant-volume calorimeter to give…

A: we have to calculate ∆U per mole of carbon

Q: What would be the mechanism for this reaction?

A: We have to predict the mechanism for given reaction.

Q: Please use 3 significant figures or 3 decimal places. What is the pH of a buffer is prepared, 1.00…

A: Aqueous Solution consists of a mixture of a weak acid and its conjugate base or weak base and its…

Q: 4) 430+ 1) BH 3 • TH F 2) H₂02, NaOH 7 Br₂ H₂O complete the following reection

A:

Q: What bron i I compound would be required to react with (CH, CH),Culi in order to form the following…

A:

Q: Silane, SiH4, is a colorless, pyrophoric, toxic gas that is used to deposit elemental silicon for…

A:

Q: Provide the reagents needed to complete the following synthesis.

A: Given : reactants and products

Q: 7. Predict the product of the following reaction sequence. 1. Br₂, hv 2. NaOEt, EtOH 3. 03 4. DMS 5.…

A:

Q: Which of these statements more accurately describes the difference between crystalline solids and…

A: There are 2 types of solid-  1- crystalline solid 2- amorphous solid

Q: a In the reaction of two moles of gaseous sulfur dioxide and one mole of gaseous oxygen to form two…

A: Given ; temperature = 273 k              Volume = 22.4 L              Pressure = 1 atm Work done =…

Q: CO₂ (g) CO₂ (aq) AƒH°(CO₂(g)) = −393.51kJ · mol-¹ S°(CO₂(g)) = 213.785J · mol−¹ . K−¹1 AfH°(CO₂(aq))…

A: First, we have to find standard Gibb's free energy, ∆Go value from the below equation: ∆Go = ∆Ho -…

Q: Knowing the direction of heat flow, explain why if you leave a hot bowl of soup out in the open on…

A: A question based on chemical thermodynamics that is to be accomplished.

Q: Zinc was analysed in acid mine drainage (AMD). The signal obtained from an AAS for the sample was…

A:

Q: Question 19.b of 23 Uranium hexafluoride, UF, is an important compound used in the enrichment of…

A: Which of the following best describe the Fluorine belong to which group ?

Q: The meals-ready-to-eat (MREs) in the military can be heated on a flameless heater. You can purchase…

A:

Q: What is the major organic product of the following reaction? Problem viewing the image. Click Here…

A:

Q: What is the hybridization of Kr in KrF3* ?

A:

Q: The enthalpy change for the oxidation of butane, C4H10, is measured by calorimetry. C4H10 (g) + 13/2…

A:

Q: 1. Explain how a buffer made of hydrofluoric acid (0.20 M) and fluoride ion (0.20 M) adjusts to a…

A: Amount = Volume in L × concentration in M  Weak acid and its salt will form buffer solution.

Q: container is filled with 27.6 L of oxygen gas at STP. Approximately what mass of oxygen would there…

A: Volume of Oxygen gas = 27.6 L At STP-> T = 273.15 K P = 1 atm

Q: pt pt 1 nt The first step in the production of nitric acid from ammonia involves the oxidation of…

A:

Q: ▼ Determine the [OH] of a 0.10 M ammonia solution. Express your answer using two significant…

A: we have to calculate [OH-] pH pOH for the ammonia solution

Q: You should use care when dissolving H₂SO4 in water because he process is highly exothermic. To…

A:

Q: Glucose from molasses is fermented to alcohol using S. cerevisiae where 500 ml of CO2 (at standard…

A:

Q: Many monomers can form long polymer chains, but some can also form bonds with neighbouring polymer…

A:

Q: 12 Which of the following can react with 1 sulfur atom to form a covalent compound? a) 1 chlorine…

A: Covalent compound: Covalent bond is formed between non metal atoms by sharing their valance…

Q: What product will be formed when the chemical undergoes reaction with NBS and hv ?

A:

Q: What is the correct IUPAC name of the following compound? Br Problem viewing the image, Click Here…

A: Here we are required to provide the IUPAC name.

Q: Use dotted lines to represent the hydrogen bonds between the two molecules below. H OH

A: Use dotted line to represents the hydrogen bond between the given two molecules.

Q: The belt of stability helps relate the first--------  elements that are stable without…

A: The belt of stability is the narrow region, on a graph of isotopes, where the isotopes are stable (…

Q: Which functional group can be polymerized to form an organic metal? Oplophol

A: Organic metal are polymers which have conductivity like metal. So polymeric form must contain the…

Q: The energy required to melt 1.00 g of ice at 0 °C is 333 J. If one ice cube has a mass of 64.5 g and…

A:

Q: How would this chemical react with (CH2=CH)2CuLi?

A: Organic reactions are those in which organic reactant react to form organic products.

Q: a sample containing 17.5 moles of carbon monoxide (co) has an initial volume of 22.4 l. what is the…

A: According to ideal gas equation, PV=NRT where, P=pressure, V=volume, N=number of moles of gas, R=gas…

Q: Question 11 Two gas mixtures, A and B, are compared for their carbon dioxide content. Mixture A has…

A: Given :  Composition of mixture A (on mole basis)  Nitrogen = 50 %  Oxygen = 25 %  Carbon dioxide =…

Q: Owen belove Some Structure at Retone Select the which Comnot be made by the acid Catalyzed hydration…

A:

Q: Select those which give only one organic product on ozonation (O3) followed by hydrolysis (reaction…

A: Ozonolysis of alkyne followed by hydrolysis will produce carboxylic acid molecules. Now in the…

Q: which of the following compounds is a covalent compound? BaBr2, H3P, H2S, Na2S, LiOH, Fe2O3

A:

Q: What is/are the reagent(s) for the following reaction? Problem viewing the image. Click Here O…

A:

Q: Calculate the pH of a 0.018M H2SO4 solution that has a Ka1=strong and Ka2=1.2•10-2

A:

Q: CWhat is the new value of A, H for Reaction 1, as now written? Original: New: 4 B(s) + 3 O₂(g) → 2…

A:

Q: What is/are the reagent(s) for following reaction? Problem viewing the image. Click Here

A:

Q: Draw the structural formula for the tripeptide Cys-Ala-Gly.

A: Peptide is formed by combination of amino acids. When amino acids are combined, there is release of…

Q: Water can be decomposed to its elements, H₂ and O2, using electrical energy or in a series of…

A:

Q: Which of the following is the correct definition of a "covalent compound"? O When one or more pairs…

A: A compound consist of two or more than two atoms of different elements.

Q: 20. Which of the pairs has the member with the greater molar entropy listed first? Select all that…

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.