any molecules are in 4.15 mol of SiH? ol SiH4 = any moles are in 7.83 x 1024 molecules of NH3? 1024 molecules NH3 = molecules mol

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A: It is example of redox titration  Here we are required to find the Molarity of hydrogen peroxide…

Q: 3. Complex ion formation. Calculate the equilibrium concentration of Ag+(aq) in a solution that is…

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Q: What is the enthalpy change for per mole of the following reaction (in kJ moly H₂₂-2H You may need…

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Q: 9. Predict the starting material that would lead to the following products. 1. NaNH, 2. CH₂CH₂Br 3.…

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Q: Use Boyle's law to complete the following table (assume temperature and number of moles of gas to be…

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Q: 4. Predict the major product and propose a mechanism for the following reaction. Include…

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Q: 17.40 Write the corresponding section of mRNA produced from the following section of DNA template…

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Q: For the above redox reaction, assign oxidation numbers and use them to identify the element oxidized…

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Q: 2H2SO3(ℓ)→ 2H2S(g) + 3O2(g)      ΔHrxn = 408 kJ        How much heat is absorbed in this reaction…

A: Given, 2H2SO3(ℓ)→ 2H2S(g) + 3O2(g)      ΔHrxn = 408 kJ   Mass of oxygen (O2) produced = 89.9 g…

Q: What element am I?  a) In my natural state I am a diatomic element. When I form an ionic compound, I…

A: In an atom, there is nucleus at the centre and electrons are revolving around it. In nucleus, there…

Q: The enthalpy of reaction is -11.7 kJ/mol for the following reaction:   HCN(aq) + NaOH(aq) -->…

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Q: Americium-241 is the most common isotope of americium. It is commonly found in ionization type smoke…

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Q: Tamiflu is an antiviral agent. Draw the structural condensed formula of the skeletal structure of…

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Q: Which part of the copper wire wrapped nail in agar is the anode? And which is the cathode?

A: The concept used in this question is taken from electrochemistry part of physical chemistry .  Here…

Q: Which of the following reactions will produce a CO₂ gas? O O Ca + CH3CO₂H → MgSO + HCI →→ HNO3 + Zn…

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Q: 17.22 Draw the condensed structural formula for the dinucleotide AT that would be in DNA.

A: Condensed structural formula Every carbon atom is represented individually, and the following carbon…

Q: What is the final product of this multi-step process? H 1. EtMgBr, Et₂O 2. H₂O 3. H₂SO4, heat 4. HBr…

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Q: Calculate the pH of a solution that is 0.80 M in lactic acid and 0.40 M in the lactate ion.  (Ka…

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Q: Ksp for AgCl is 1.77E-10. What is the molar solubility of AgCl in a solution of 0.36 M NaCl? Include…

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Q: 6. Br Which of the following statements best summarize the observed results of the reaction? (There…

A: Substitution reaction takes place by SN1 or SN2 mechanism.

Q: Draw a Lewis structure and write the predicted geometry of H2S.

A: We have to draw the Lewis structure for H2S.

Q: Compute for the moles of H+ used and the moles of OH- present. moles of H+ used = (concentration of…

A: The reaction taking place during the titration is- 2HCl (aq) +Ca(OH)2 (aq)→CaCl2(aq)+ 2H2O(l) The…

Q: 12.6 Results from a soil-vapor study showed a soil-vapor concentration for vinyl chloride of 1500…

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Q: 31. For each reaction, identify the Brønsted-Lowry acid, the Brønsted-Lowry base, the conjugate…

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Q: Standard solutions of sodium carbonate, Na2CO3(aq), are required for certain types of chemical…

A: 8.50 g of sodium carbonate is dissolved in 500 mL of distilled water .We have to calculate the…

Q: 1. What is the molar solubility of Ag2SO4? KS= 1.52 x 10-5 b. What is the molar solubility of…

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Q: Suppose that the reaction A → B is second order overall and has a rate of 1 M·s-1 when the…

A: Given, A ----> B Reaction follows second kinetics. Rate of the reaction (Rate)1 = 1 M.s-1…

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Q: Answer the following questions with the choices (a-d): 2 (a) "Affinity" (b)"Adsorption"…

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Q: 17.28 Write the base sequence in a complementary DNA segment if each original segment has the…

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Q: If the absorbance of 0.209 M copper (II) chloride solution is 0.58 and the path length of light is…

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Q: Calculate the [OH] of each aqueous solution with the following [H₂O¹]. baking soda, 1.2 x 10-8 M…

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Q: The difference between catabolism and anabolism is that one involves the breakdown of larger…

A: Catabolism is the process in which a smalller molecules breaks down into smaller molecules.…

Q: t a wastewater plant iron is added to remove excess phosphate from the effluent. what concecntration…

A: The equation showing the reaction of Fe3+ and phosphate ion (PO43-) is- Fe3++ PO43- ↔ FePO4(s)…

Q: Recovering and reusing organic solvents is an important part of the operation of most chemical…

A: Given that: Mole fraction of acetone stream fed to condenser = 20.0 % Temperature of cooling-tower…

Q: Complete and balance the following neutralization reactions.…

A: H2CO3(aq)+Ba(OH)2(aq)→ complete and balance the above neutralization reaction.

Q: w many atoms are in 4.40 mol of potassium? 40 mol = w many m x10 TOOLS 06 x 1024 atoms = of…

A: Mole is equal to number of atom divide by avagadro number

Q: Complete the following table for a selection of foods: Food [H3O+] [OH-] PH Apple juice Soy milk…

A: Soy Milk is neutral .

Q: 1.00 L of NaCl solution is diluted to 1.80 L with water. Which of the following statements are true?…

A: A). Let M1​ and V1​ be the molarity and volume of the NaCl initially   And M2​ and V2​ be the…

Q: Which of the following ligands has the weakest field strength? Br O C₂04²- O NH3 NO₂

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Q: In a 0.09 M solution of chlorous acid, what percentage of the acid is ionized to the chlorous anion,…

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Q: A. What is the pH of an aqueous solution of 0.0240 M potassium hydroxide? pH = B. What is the pOH…

A: A) Here given---- Aqueous solution of 0.024 M KOH, so concentration of [OH-] = 0.024 M We know----…

Q: OH ☆ НО

A: Total 4 signals showing in H NMR

Q: Questions 1. What is the wavelength of a photon with a frequency of 56.72 Hz?

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Q: Balance the following redox reaction in acidic solution Select the correct number/formula for each…

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Q: Calculate the molar hydrogen ion concentration of each of the following biological solutions given…

A: pH : The negative logarithm of H+ ion concentration is called pH

Q: E2 products for each of the following upon treatment with a base. Draw it in the flat polygon form.…

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Q: A 40.0% glucose solution is available. How many mL of this solution is needed to make 12.0% glucose…

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Q: 3. Solid NH4HS decomposes by the following endothermic reaction: NH3(g) + H₂S(g) NH4HS(s) a. What…

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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.