How many moles of Strontium are in 58.6 g of Strontium?

Q: 2. Isomerization of alkenes can be achieved through conjugate addition of nucleophiles. Examine the…

A: In this rxn, isomerization of the alkene diisopropyl-but-2-enedioate is being investigated. This rxn…

Q: acetoacetate synthesis. More than one step may be required. Provide all reagents needed (2) Propose…

A: Here we have been asked to synthesize  3-butylhex-5-en-2-one from either diethyl malonate or ethyl…

Q: A chemist prepares a solution of potassium iodide (KI) by measuring out 300. g of potassium iodide…

A: Weight of KI = 300 gmVolume= 450 ml = 0.450 L (1L = 1000ml)

Q: A solution is made by the following steps.  1.) 90.0 mg ± 0.2 mg of dye with molar mass 685.79…

A: Given Data:A solution is made by the following steps. 1.) 90.0 mg ± 0.2 mg of dye with molar mass…

Q: 15. a) What is the meaning of "polar covalent"? Explain the concept. b) Draw the VSEPR structure of…

A: Answer :----(a)Polar covalent :- It refers to a type of a chemical bond where two atoms share…

Q: 10. The enthalpy of combustion for dodecane (MW: 170.34 g/mol) is -7902 kJ/mol. How much heat is…

A: Given, mass of dodecane combusted = 7.75 g molar mass of dodecane = 170.34 g/molwe know, => moles…

Q: Name each of the following compounds: Structural formula CH₂- -CH₂ CH₂2- -CH₂ -…

A: IUPAC nomenclature of cycloalkanes:• Identify the longest continuous carbon ring• Identify the…

Q: OH OH OH Br OH

A:

Q: Table 1: The physical characteristics of six unknown samples. Property Sample A Sample B Melting…

A: Covalent compounds have low melting points.They are soft solids.They are not soluble in water but…

Q: molecule or polyatomic ion CIF CC14 HCN polar or nonpolar? polar nonpolar polar nonpolar polar…

A: A bond is polar when it is made of two different atoms having considerably different…

Q: 7. Study the reactions below and answer the questions that follow. 7.1. Give the name of the…

A: This rxn is called reductive desulfonylation.In this rxn, a SET radical anion mechanism happens.…

Q: Choose all chelating ligands from the substances below. OA. hydroxide ion B. ethylenediamine C.…

A: Answer:Polydentate ligands those can a form a ring ike structure with the central metal ion by…

Q: 19. CH₂ C: H: Total: C: H: ΔΕΝ: Polar Bonds? Polar Molecule? Strongest IMF?

A: The polarity of the bonds depends on the difference between the electronegativity of the two…

Q: For the reaction between 3-methylpent-2-ene and HBr, which of the following structures correspond to…

A: Given,3-methylpent-2-ene reacts with HBr to form:

Q: how many moles of silicon is composed of 7.89 * 10^23 atoms of silicon?

A: Number of atoms of silicon = 7.89 ×1023 atomsmoles of silicon = ?Note: As we know that,6.022 × 1023…

Q: element scandium chlorine sulfur lithium symbol of ion 3+ Sc 0 0 beryllium 0 most likely ion type of…

A: The question is asked to determine the type of the ions formed from each of the given elements.To…

Q: During a recrystallization, if more solvent than necessary was used, how would the recovery be…

A: Since you have posted multiple questions, we will provide the solution only to the first question as…

Q: The image below shows the free energy (G) of a reaction as a function of the composition - all…

A: Answer:A chemical reaction will only be spontaneous in forward direction when value of Gibbs free…

Q: does the reaction Fe + H2SO4 -> FeSO4 + H2 take place?

A: Answer:When one chemical element displaces other chemical element from its compound then such…

Q: Which reagents are best used to produce 4-methyl-2-pentanol from a ketone? a. amins and trace acid,…

A: In the given question we have to decide reagents which can be used to form a secondary alcohol from…

Q: Compare the energy densities of ethane (C₂H6) and ethanol (C₂H5OH). Which fuel would theoretically…

A: Energy density refers to the amount of energy stored in a given quantity of a substance or material.…

Q: (1.678x10^3m^2)/(1.6267x10^2m) ...I just need help with the sig figs and units

A: (1.678 X 103 m2 ) / (1.6267 X 102 m)Calculate the above problem with correct significant and unit.

Q: Study the problem and proposed solution below. Is the final answer correct? Then click the No…

A: Given,the mass of a liquid = 27 kgthe density of a liquid = 825. g/L

Q: Based on the valence of oxygen, how many other atoms can one oxygen atom share its electrons with?…

A: The bonding of main-group elements (especially carbon, nitrogen, oxygen, and halogens) can be…

Q: Which one of the following complexes CANNOT exhibit geometrical isomerism? Check all the apply. OA.…

A: This question belong to coordination compounds of inorganic chemistry that is isomerism.Geometrical…

Q: Often during recrystallization, a boiling stick is used in the heating of the solvent and solution,…

A: Given a process of recrystallisation benefits of using a boiling stick over boiling stones : To be…

Q: [A](M) [B](M) Initial Rate (M/h) 0.244 0.247 175 Using the rate equation Rate = k[A]m [B]n, and the…

A: The relation between the concentration of the reactants and the rate of reaction is expressed by the…

Q: A 1.00 g sample of a radioactive isotope decays such that 0.675 g will remain after 2.43 yr.…

A: Radioactive decay follows the first order kinetics.k = (2.303/t) log (Ao/A)t1/2 = 0.693/kWhere, Ao =…

Q: A solution is made by the following steps. 1. 90.0 mg ± 0.2 mg of dye with molar mass 685.79 g/mol ±…

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

Q: Determine the moles of AICI, produced when 4.75 grams of Cl₂ reacts with Al according to the…

A: A balanced chemical equation contain equal number of atoms of each elements on both sides of the…

Q: Identify the strongest acid: O O O H C HÃ H H C-H H H- H CECEC H H-C=C-H H H I H H

A: The detailed explanation is below

Q: What two gas variables are kept constant in a Boyle’s law experiment?

A: Boyle's lawAccording to the Boyle's law as the pressure (P) increases the volume (V) of a gas…

Q: A sample of ethanol has a volume of 7.5mL and a mass of 5.85g. A sample of benzene also has a volume…

A: Given,Ethanol: Mass- 5.85 g and Volume - 7.5 mLBenzene: Mass- 6.60 g and Volume - 7.5 mLTo determine…

Q: A chemist measures the enthalpy change AH during the following reaction: 2 HNO3(1) + Mg(s)→…

A: The thermochemical equations can be treated as algebraic equation which can be added,  subtracted,…

Q: How many minutes will it take to plate out 4.56 g of Ni metal from a solution of Ni2+ using a…

A:

Q: Potassium oxide crystallises in the anti-fluorite structure type. State the coordination number and…

A: Ionic compounds are crystallized into different lattice structures and unit cells. Based on their…

Q: The following chemical reaction takes place in aqueous solution: AgNO3(aq)+KBr(aq) →AgBr(s)+KNO3(aq)…

A: Since AgNO3, KBr, and KNO3 are strong electrolytes they will dissociate completely in an aqueous…

Q: balance in basic solution   CrO-4 (aq) + C6H14O2(aq) → Cr3+(aq) + HCO−3 (aq)

A: Reaction Find out balanced chemical reaction in basic solution

Q: Calculate the pH of the cathode compartment for the following reaction given & cell = 3.01 V when…

A: Answer :----

Q: What would happen if 1.00 mmole of lactic acid (pKa 3.86) was added to a sample containing 6.50…

A: The pH of conjugate acid base pair or acidic buffer is calculated using following equation;

Q: element scandium oxygen fluorine symbol of ion 3+ magnesium 0 0 0 potassium 0 Sc most likely ion…

A: The number of protons in an atom's nucleus determines what element the atom is. For example,…

Q: NaOH ? Which SM Combination

A:

Q: Calculate the crystal field splitting energy of a complex that absorbs 474 nm light in Joules.…

A: Complex absorbed wavelength is 474 nmCalculate the crystal field splitting energy ( joules )

Q: The mass of a proton is 1.00728 amu and that of a neutron is 1.00867 amu. What is the binding energy…

A:

Q: Study the problem and proposed solution below. Is the final answer correct? Then click the No…

A: Given,the velocity of a gliding bird = 82. cm/sthe distance = 2.7 m

Q: 1. On each line below, write the generic functional group being highlighted by each box. Do not name…

A: Check the name for functional group and write down the name in front of the compound.

Q: Click the "draw structure" button to launch the drawing utility. Draw one of the aldoses formed when…

A:

Q: NH NBr ? Zu NH

A: This is an example of electrophilc aromatic substitution reaction

Q: CI 1. Phthalimide, KOH 2. NaOH ? Major Organic Product

A: Substitution reaction is a type of reaction in which one species attacks on the substrate and…

Q: Ph. YAR Ph Ph 1.03 2.Dimethylsulfide (DMS)

A: Ozonolysis is a method of oxidatively cleaving alkenes using ozone ( O3 )  a reactive allotrope of…

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.