Element Symbol Mn Atomic Symbol 113 In 49 Atomic Mass Number Number 56 Protons Neutrons Electrons 49 66 25

Q: What volume of concentrated HCI (12 M) solution needs to be diluted to produce 275 mL of 2.1 M HCI…

A: Since we know that  M1V1 = M2V2 Where ,  M1 = initial concentration  V1= initial volume  M2= final…

Q: HCHO CH,CHO HOOC -COOH

A: Starting with:HCHO (Formaldehyde)CH3​CHO (Acetaldehyde or Ethanal)You're suggesting that these two…

Q: Diluting 1.0 mL of a 1.0 M solution to 1,000 mL results in a solution that is 0.001 M. Repeating…

A: For dilution M1V1 = M2V2 where M1 = Initial molarity of solution V1 = initial volume of solution  M2…

Q: A solution is contaminated with traces of cadmium, manganese, and cobalt. Which option would be the…

A: One of the removal of heavy metals is by using the solubility factor of these metals. In a saturated…

Q: What

A: Molarity is defined as total number of solute present in 1000 ml of solution . For neutralisation we…

Q: Help fast

A: The Newman projections of the above given molecule are as follows:

Q: 17. 18. 19. HI (2 equiv.) [1] OCH 3 [2] H₂O HBr

A:

Q: NO LH, FINAL PRODUCT(S) P/C AICI Select one or more: NO2

A:

Q: Part A 112.0 mL of glacial acetic acid (pure HC₂H₂O, K.-18x 10 ) is diuted to 1.75 Express your…

A: Volume of glacial acetic acid = 12.0 mL = 0.012 LDensity = 1.05 g/mLMass of acetic acid = volume ×…

Q: Which statement best describes dry deposition? A Acidic gases are repelled by the surfaces of both…

A: The presence of substances in the atmosphere that causes harmful effects on humans and other leaving…

Q: 1. For water available for domestic use, calcium carbonate concentrations cannot exceed 500mg/L. a)…

A: Parts per million  is calculated as :  Molarity = Molar Concentration =

Q: Identify general patterns of behavior of eactions?chemical r

A: Generally, a chemical reaction includes bond making and breaking between atoms that means total…

Q: 6.) If the pH = 8.2, what is [H*]? %3D 7.) If the pH = 4.2, what is [OH]?

A: Answer govt as follows

Q: Determine the number of atoms in 39.0 grams of sodium, Na. (The mass of one mole of sodium is 22.99…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: A tank initially contains 200 liters of fresh water. Brine containing 2.5 N/liter of dissolved salt…

A: Ans. Option (d) is right. 0.82N/L

Q: 1 What mass of solid radium sulfate (the most insoluble compound known) will remain when 10 L of a…

A: The answer to the following question is-

Q: MULTIPLE CHOICE Question 18 Which scenario best describes the long-term health effect of air…

A: Here, we have to find the best scenario that describes the long-term health effect of air pollution…

Q: Molar concentration of the dye stock solution: 2.52e-5 mol/L Solutions(Dilutions) Absorbance…

A: The concentration of the initial stock solution is 2.52×10-5 mol/L. The final volume of solution is…

Q: Animal fats and vegetable oils become rancid when exposed to air because

A: Animal fats and vegetable oils becomes rancid when exposed to air because Hydrolysis of animal fats…

Q: Ph 1. LDA, THF, -78C 2. CH3I

A: Starting compound have no alpha hydrogen with respect to keto group. Lithium diisopropylamide (LDA)…

Q: Complete the table below. Round each of your entries to 2 significant digits. You may assume the…

A: Completing the table below,Conjugate acid          conjugate baseFormulaKaformulaKb??ClO-3.3 ×…

Q: b. Phenol (C6H5OH) is often used as an antiseptic in mouthwashes and throat lozenges. If a mouthwash…

A:

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Q: o summarise large amounts of water quality data for a specific r

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Q: Select the stronger base in each pair. Choices Stronger Base 0.10 mol/L NaOH(aq) 0.20 mol/L…

A: Bases are the substance which gives OH- ions or accepts H+ in their aqueous solution.

Q: . 92.3 ml . 226 ml 4. Solution B was prepared from solution A as shown below. The concentration of…

A: 4) The formula of dilution is  C1V1 = C2V2 Where, C1 and C2 are initial and final concentrations of…

Q: Table 1. Standardization of HCI Solutions (40 pts) Trial Volume of HCI (To the nearest 0.01 mL)…

A: The objective of the question is to calculate the uncertainty in the molarity of the HCI solution…

Q: How do you derive the equation equation pOH = 1/2(pkb + p[A-]) from the equation kb = [OH-]^2/[A-].

A: In this question we have to derive a equation pOH = 1/2( pKb + p[A–] )  from the equation Kb =…

Q: From the given situations, explain whether its solution requires a qualitative analysis,…

A: To determine whether the given solutions require a qualitative analysis, quantitative analysis,…

Q: 1. 0.5 liters of saltwater having a chloride concentration of 27,500 mg/L is added to 10 liters of…

A:

Q: PART 4-LABORATORY SAFETY QUESTION LIn what situations should salety goreles be wom? 2 Why aren't…

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Q: 1. A sample of water from a local river is collected for testing. There are three possible…

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Q: A sample of concentrated nitric acid has a density of 1.41 g/mL and contains 70.0% HNO3 by mass.…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: From the given situations, explain whether its solution requires a qualitative analysis,…

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Q: If you burn your hand on a burner, use first aid kit. Select one: O True O False

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A:

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A: 11.(a) Mechanism:N-bromosuccinimide (NBS) is a common bromating agent and its main advantage is that…

Q: The Kb value for ammonia is 1.8 × 10–5 . Determine the pH  and the concentration of [OH– ] in a 0.40…

A: Given:  Kb value for ammonia = 1.8 × 10–5 Initial concentration of NH3 = 0.40 M

Q: how did you choose these options

A: Basic introduction about cyclohexane in chair conformation

Q: It was determined that benzoic acid (structure below) is not soluble in water. However, it can be…

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Q: Blank 1 is the breakdown of chemical compounds in organic matter that results in the release of…

A: The process of organic matter decomposition includes the physical breakdown of substrate and…

Q: For each of the following values, identify the number of significant digits of the value. [H₂0+…

A: Significant digits are those value from which we can accurately a quantity.

Q: In a chemical equation, the  ___________________ indicates that a chemical change occurred. what is…

A: During chemical reaction, reactant react to form new product in which the composition of element is…

Q: CongatIve Propertles of Fudge Name:Amari Prkn Introduction: Molality is a unit of concentration used…

A: 1. Fudges are also called as crystalline candy.  The smooth texture of fudges are due to the micro…

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.