What is the molarity of 100ml unknown Ca2+ solution when 5.20 g of CaC2O4·H2O is measured?

Q: A chemist must dilute 0.0659 L of 2.78 M aqueous sodium chloride (NaCl) solution until the…

A: Given: The initial molarity of sodium chloride = 2.78 M The initial volume of NaCl solution = 0.0659…

Q: The ionization energy is the energy necessary to remove an electron from an atom. That is, the…

A: Answer:- This question is answered by using the simple concept of calculation of ionization enthalpy…

Q: A water sample was collected from a deep lake. At 25 C, the pH was

A: Given: pH of the water sample = 7.0 Concentration of dissolved oxygen = 0.32 mg/L To calculate: i)…

Q: -CI

A: Option (d) is correct 7-chloro-3-propyl-1-heptyne

Q: water react to form acetylene and calcium hydroxide: CaC₂(s) + 2 H₂O(g) → C₂H₂(g) + Ca(OH)2(s) In…

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Q: For the following weak base, write a Bronsted Lowry acid base reaction with water showing the…

A: Bronsted Lowry base is a proton acceptor.

Q: Identify which of the following compounds is meso.

A: Given : structure of molecules Tip : find out the R-S configuration

Q: HO AG° = HOT HO OH a form of glucose OH a form ß form H - Which of the two forms is most stable: HO…

A: In the chair conformation of cyclohexane bulky group prefer equatorial position. ∆G° = -RTlnKeq  R =…

Q: 88.0 mL of an unknown concentration of NaOH is titrated with 56.0 mL of 0.75 M HCI. What is the…

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Q: Chemistry Biochemistry. Please write neat. Thank you. 8. Draw a disaccharide joining glucose and…

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Q: (4) Which of the following is a stronger nucleophile? Explain. a. NH₂ or NH3 b. H₂O or CH3COO

A: Basically, nucleophiles are electron-rich species with the ability to donate electron pairs because…

Q: (4)Circle the reagent in each pair that will react the fastest in an SN2 reaction with OH? Explain.…

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Q: What is the pressure in a 6.00 L tank with 49.3 grams of nitrogen gas at 385 K?

A: Pressure of a gas in the tank or vessel can be predicted considering the gas to be ideal and using…

Q: Which elements are most similar in atomic size? (A) H (Z = 1) and Li (Z = 3) (B) C (Z = 6) and Si (Z…

A: In this question given four sets of elements. 1. H and Li 2. C and Si 3.Mn and Tc 4. Zr and Hf   We…

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A:

Q: A student peforms a titration, titrating 25.00 mL of a weak monoprotic acid, HA, with a 1.26 M…

A: The weak monoprotic acid is HA. The strong base is NaOH (titrant)  The balanced equation is: HA(aq)…

Q: Draw the major organic product of the following reactions. Include all arrows and steps. OH go…

A: Alcohols undergo dehydration in the presence of concentrated acid to give alkene through a…

Q: .4-Draw the structures of the following molecules: • a) trans-1-Bromo-3-methylcyclohexane .b)…

A: #4: (a): trans-1-bromo-3-methylcyclohexane: The longest carbon chain in the molecule is the…

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into…

A:

Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into…

A: Given:  Energy absorbed by chemical reaction = ∆E = + 259 KJ .... Where positive sign indicates that…

Q: If the H3O+ ion concentration in an aqueos solution at 25°C has a value of 4.80 x 10^-5 M, what is…

A:

Q: A chemist prepares a solution of nickel(II) chloride (NiC1₂) by measuring out 18. g of nickel(II)…

A: Given -> Weight of nickel(2)chloride= 18 gm  Volume of solution= 200 ml

Q: How do I know if I had R or S phenylsuccinic acid in either R or S proline?

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Q: Dimethyl ether, a useful organic solvent, is prepared in two steps. In the first step, carbon…

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Q: 1. For coexistence curves in a phase diagram for a typical pure substance, which is more sensitive…

A: Sensitivity of phase towards pressure depends on the composition of substance.

Q: A chemist adds 2.00 L of a 5.9 × 10M mercury(II) iodide (HgI₂) solution to a reaction flask.…

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Q: Draw the major product of this reaction. Include stereochemistry if applicable. Ignore byproducts.

A: Given: structure of reactant. Tip : Sn2 reaction will occur.

Q: A student dissolves 13.8 g of ammonium chloride (NH4Cl) in 250. g of water in a well-insulated open…

A: a.) Nature of reaction can be determined from temperature change.  b.) Heat can be calculated using…

Q: Hydrogen chloride gas and oxygen react to form water vapor and chlorine gas. What volume of water…

A: we have to calculate the volume of water produced in the reaction

Q: A student dissolves 12.1 g of potassium chloride (KC) in 300. g of water in a well-insulated open…

A: a) Nature of reaction can be determined from temperature change.  b.) Heat released or absorbed is…

Q: up 4: 샴

A:

Q: What is the equilibrium pH of an initially 5.1 M solution of hypochlorous acid, HOCl, at 25°C (Ka =…

A: Initial concentration of HOCl= 5.1 M Ka= 3.5 x 10-8

Q: The correct name for the compound N 2O 3 is     dinitrogen trioxide.     nitrogen oxide.…

A: N and O can form many compounds in different ratio. So name of the compound of N And O are written…

Q: Which reaction coordinate corresponds to the following reaction? HBr E Rxn Progress a ·M..M E d E…

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Q: When carbon is burned in air, it reacts with oxygen to form carbon dioxide. Wheng of carbon were…

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Q: 4. In the following P-T diagram for potassium, does fcc or bcc have the higher density and will fee…

A: It is clearly seen from the graph that FCC exists exist at high temperature as compared to BCC. High…

Q: An object is put into a graduated cylinder with 50.0 mL of water.  The two together take up a volume…

A: We need to calculate the density using the given data and then compare it with given density of all…

Q: According to the kinetic-molecular theory, gas molecules have     little distance between…

A: According to the kinetic-molecular theory, gas molecules have weak interactions between molecules.…

Q: The ∆Hvap for benzene is 30.7 kJ/mol at its boiling point of 80.0 °C. Calculate w for the…

A: Here we have to determine the work done for vaporization of one mole of benzene  at the boiling…

Q: How many photons are produced in a laser pulse of 0.214 J at 471 nm?

A: Since you have asked multiple questions, we will solve the 1st question for you, in case if you want…

Q: Draw (S)-4-ethyloctane in a structural condensed format. Use a dash or wedge bond to indicate…

A: We have to draw, (S)-4-ethyloctane

Q: closed system initially contains 1.5 x 10-2 M of molecular hydrogen and 2.5 x 10-2 M of molecular…

A:

Q: Macmillan L A student places a block of hot metal into a coffee cup calorimeter containing 152.6 g…

A: Given, mass of water = 152.6 g initial temp. = 21.8 °C final temp. = 37.0 °C We know, specific heat…

Q: if a buffe solution is 0.230 M in a weak base (Kb= 6.2 x 10^-5) and 0.550 M in its conjugate acid…

A: pH of buffer solution is calculated by using Henderson Hesselbalch equation

Q: Rank the conductivities of 1 M aqueous solutions of each of the following solutes, starting with the…

A: The given electrolytes are  (a) acetic acid (b) methanol (c) sucrose (table sugar) (d)…

Q: Which is a diyne?

A: Given structures are  We need to identify which among the above is a diyne

Q: F Lactide is an abundant renewable starting material that can be used to create a biodegradable…

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Q: Solid Na2S is slowly added to a solution of 1.0 x 10-3 M Cr3+ (with no change in volume). At what…

A: This can be explained as:

Q: Draw the starting alkyne that would lead to the following two products under these conditions.

A: Given : structure of product Tip : oxidative ozonolysis on alkene given carboxylic acid

Q: O Macmillan Learning Potassium nitrate, KNO3, has a molar mass of 101.1 g/mol. In a…

A: Heat of solution can be calculated using formula  q = mC∆T  Enthalpy of reaction is calculated using…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.