A chemist dissolves 866. mg of pure sodium hydroxide in enough water to make up 50. mL of solution. Calculate the pH of the solution. (The temperature of the solution is 25 °C.) Round your answer to 2 significant decimal places. 0

Q: 7. The polymer polystyrene can be drawn in its long form in the two ways shown below.…

A: Polymers are a group of substances, both natural and synthetic, that consist of large molecules.…

Q: How many full waves span for the 5th harmonic n=5?

A: Wave span refers to the number of full waves that a harmonic of a given frequency can span across…

Q: The first five ionization energies (IE,through IE) of a Period element have the following pattern:…

A: Ionization energy is defined as the amount of energy required to remove valence electron from…

Q: What is the role of p-TSA a. It prevents the reactants from creating flames b. It lowers the…

A: p-TSA is a catalyst used in organic reactions and the chemical formula is CH3C6H4SO3H.p-

Q: Calculate AH for the reaction 2Al(s) + 3Cl2(g) → 2AlCl3(s) from the data. 2Al(s) + 6HCl(aq) → 2AICI3…

A:

Q: Calculate the amount of heat energy needed, in joules, to convert 52.0 g of ice at — 18°C to each of…

A: l

Q: Use standard enthalpies of formation to calculate ΔH∘rxn for the following reaction: 4HCl(g) + O2(g)…

A:

Q: How many substituents does the following compound have? none one two three four

A: The IUPAC name of the compound can be written on the basis of the number of carbon atoms in the main…

Q: Shown below is a model of PCI, having an orientation in which one or more atoms are hidden from…

A:

Q: Predict all products for the following reactions: please make sure to show no more than two major…

A: The given condition favoured formation of brominium carbocation . This brominatuom will occur from…

Q: What is the standard molar entropy (Smº) of oxygen atoms at 298 K (assumed to behave as an ideal…

A: Entropy is defined as degree of randomness or disorderliness present in a molecule.  If a molecule…

Q: works. Draw the mechanism for the following reaction. Draw all curved arrows. هل من anhydrous HCI

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: Which bond would you expect to be the most polar? OP-S OC-O OC-N ON-O OO-F

A: Given,P-SC-OC-NN-OO-F

Q: i) Na+ OCH₂CH3, CH₂CH₂OH, 25°C ii) CH3I

A: Given that, the reaction is:

Q: A scientist measures the standard enthalpy change for the following reaction to be -368.6 kj:…

A: The enthalpy of the reaction =-368.6 kJThe standard enthalpy of formation of H2O(l) =?

Q: In terms of safety, organic solvents can always go into the organic waste container directly, the pH…

A: The question is based on the concept of experimental chemistry.We need to explain the given…

Q: 12 ounces of water are heated during the preparation of a cup of coffee. 1150 J of heat are added to…

A:

Q: 3-isobutyl-2-methylacetophenone 1-bromo-2,2-dimethylpropane AlBr3 ----->

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: Draw the product of the reaction shown below.ch or wedge bond to indicate stereochemistry of sub…

A: Epoxides are the three membered cyclic ring containing oxygen atom.This ring has strain so it can…

Q: Rank the effective nuclear charge Z* experienced by a valence electron in each of these atoms: atom…

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

Q: Calculate the solubility of CuX (Kp = [Cu²+ ][X²] = 1.27 × 10-36) in a solution that is 0.140 M in…

A:

Q: Select the degree of substitution and any other correct desciptions of the molecule shown:…

A:

Q: Problem 1 During the isothermal heat addition process of a Carnot cycle, 2000 kJ of heat is added to…

A: In the provided problem, we are presented with a thermodynamic scenario involving a Carnot cycle, a…

Q: Which carbocation shown below is most stable? A OA OB O C D OE B C D to E

A: The stability of carbonation depends on different factors :Increasing the number of adjacent carbon…

Q: An arctic weather balloon is filled with  39.7L  of helium gas inside a prep shed. The temperature…

A:

Q: For a particular reaction at 181.2 °C, AG=-861.43 kJ, and AS = 116.09 J/K. Calculate AG for this…

A:

Q: Measurements show that unknow element mass % carbon 62.0% hydrogen 10.4% oxygen 27.5% Write the…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: Which ions are larger than Cl-? Select an answer and submit. For keyboard navigation, use the…

A: For isoelectronic species: the species having more negative charge is larger and the species having…

Q: Which of the following solutions would have the highest pH? Assume that they are all 0.10 M in acid…

A:

Q: Calculate the pK at 25 degrees C of the following reaction using the data in the table. Use R =…

A: The objective of the question is to determine the pK.The standard enthalpy is the difference between…

Q: Aqueous solutions of calcium chloride and sodium hydroxide are mixed together, forming solid calcium…

A: Formula for calcium chloride : CaCl2 Sodium hydroxide : NaOH Calcium hydroxide : Ca(OH)2 sodium…

Q: A. stitutional isomers 1. For each case, decide whether the following pairs are skeletal,…

A: Note: Since you have posted a question with multiple sub-parts, we will provide the solution only to…

Q: Order these chemical species by increasing pH of an 0.1 M aqueous solution of each. That is, imagine…

A: Acidity is defined as the ability of a molecule to release protons. If a compound  easily donates…

Q: Classify each of the following reactions and balance the equations by entering the smallest possible…

A: The unbalanced reactions are given in the question and we need to balance the reaction and then find…

Q: The equilibrium H₂(g) + 1₂(g) 2HI(g) has a Ke 49 at a certain temperature. If 1.35 moles of H₂ and…

A:

Q: 3. Two different samples of water, one at 25°C and one at 100°C, are vaporized. Assuming that the…

A: Answer: Entropy is the measure of system's disorderliness or randomness. In more possible…

Q: One mole of hydrogen gas has a mass of 2.02 g. Use your value of the molar volume of hydrogen to…

A:

Q: Glucose, C_(6)H_(12)O_(6), is used as an energy source by the human body. The overall reaction in…

A: The given mass of glucose = 63.0 g

Q: When 0.300 g of a diprotic acid was titrated with 0.100 M LIOH, 40.0 mL of the LiOH solution was…

A: Answer:To find out the identity of the unknown diprotic acid, we have to use the stoichiometric…

Q: When 1.10E-1 g of Zn(s) combines with 5.50E1 mL of HCl(aq) in a coffee cup calorimeter, all of the…

A: Answer:According to law of conservation of energy, energy can't be created nor destroyed. It can…

Q: If 0.76 grams of Product A are utilized to generate Product B at a yield of 79%, how many grams of…

A: In the realm of chemistry and chemical processes, it is often necessary to understand the quantity…

Q: Propose a plausible mechanism for each of the reactions below with clear arrow pushing + HÅH Асон…

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: Q7. Write the mechanism for the following reactions 1. H H* ОН 0 H H2O

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: Balance the following skeleton reaction, calculate E spontaneous. AgCl(s) + NO(g) → Ag(s) + Cl(aq) +…

A: The given unbalanced reaction is : AgCl(s) + NO(g) → Ag(s) + Cl - (aq) + NO3- (aq)…

Q: Which pairs are correctly arranged in order of increasing size?   I     Co < Co2+  II     Cl < Cl-…

A: The atomic or ionic size is the distance between the center of an atom or ion and the valence shell…

Q: Draw the major elimination and substitution products formed in this reaction. Use a dash or wedge…

A: In the given question we have to do the following reaction.we have to do substitution reaction and…

Q: Calculate the pH of a solution formed by mixing 250.0 mL of 0.15 mol L-1 HCOOH with 100.0 mL of 0.20…

A: A mixture of a weak acid (HCOOH in the given case) and its salt with a strong base (HCOOLi in the…

Q: Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst, to produce…

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

Q: a particu andard conditions. 25 C₂H, (g) + O₂(g) → 8 CO₂(g) + 9 H₂O(g) - hat is the standard…

A: Thermodynamic is the branch of chemistry that mainly deals with the heat transfer between system and…

Q: 8. Consider the oxygen reduction reaction and metals such as Pt or Ru which serve to catalyze this…

A: A catalyst is a substance that alters the rate of a reaction without being consumed in a reaction. A…

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.