ow many grams of boric acid are needed to prepare 500 mL of an isotonic boric acid eye wash?

Q: 3 g of HA acid is dissolved in water to produce a 1 dm³ solution. If the change of acid…

A: Given, mass of acid, HA = 3 g  Volume in dm3 = 1 dm3  Percent ionization = 2%  Relative molecular…

Q: In a coffee cup calorimeter with a heat capacity of 21.5 J/ºC, 225 mL of 0.20 M KOH at 22.3 ºC…

A: Given :  Volume of KOH = 225 ml Concentration of KOH = 0.20 M  Volume of HCl = 225 ml Concentration…

Q: Identify the indicator that has a K₂ of 1.6 x 10-7? O thymol blue O bromthymol blue O methyl red O…

A: We have an indicator that has Ka value 1.6×10–7. We are to find out which indicator have this value…

Q: Which substance would be least likely to act as an acid? HCl, NH4,  H3O, or NH3? Would it be NH3?

A: Acid are the substances which has tendency to donate H+.

Q: Using standard heats of formation, calculate the standard enthalpy change for the following…

A: For a chemical reaction is the difference between total reactant and total product molar enthalpies…

Q: These answers are different? A little confusing. Not sure which is right step 1 or step 2..

A: Neither step 1 nor step 2 is completely correct.

Q: Measure out 50.0 mL 1.0 M CH3COOH and 50.0 mL of 1.0 M NaCH3COO and combine them into a beaker.…

A: A buffer solution is made up of 50.0 mL of 1.0 M CH3COOH and 50.0 mL of 1.0 M NaCH3COO,  2.0 mL of…

Q: Question 1 Write the structures of the organic products (A-K) in the following reactions. Ph CH,Br…

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Q: A sample of solid silicon is heated with an electrical coil. If 133 Joules of energy are added to a…

A: We have to solve the given problems. Formula: q = mC(Tf-Ti) Where, q is the thermal energy, m is the…

Q: 7.79 We treat each chiral center separately. For each chiral center, we redraw one of the horizontal…

A: We give priority according to CIP rule. In this rule the group with highest atomic number is given…

Q: 8. Calculate Eº, E, and AG for the following cell reactions: (a) Mg(s) + Sn²+ (aq) → Mg²+(aq) +…

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Q: Me 'OH os tes OH OH Me Me Me Me OH

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Q: A sample of 2.30 g of potato chips was burned in a calorimeter. The calorimeter was calibrated to…

A: The heat released or absorbed is given by the following equation:  Q = m c ∆T  where Q = heat  c =…

Q: A scientist measures the standard enthalpy change for the following reaction to be 184.8 kJ:…

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Q: CN. Rank the following compounds in order of reactivity toward an SN2 reaction. (1=best) CH3Br > 1…

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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: What is the pH of a solution prepared by dissolving 0.399 g of NaOH(s) in 8.50 L of water? (Kw =…

A: Given - Weight of NaOH= 0.399 g  Volume of water 8.50L Kw=1.01×10-14

Q: How much energy does an electron need to absorb in order to go from n=1 to  n=5?  (k=2.179*10-18J)

A: When an electronic transition takes place from a lower energy level to a higher energy level energy…

Q: Br 2. Label each of the following as R, S or neither. CH3 H HO CCH3 H CH₂CH3 CH3 CH2NH2 Br CH₂CH3…

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Q: PROBLEMS For each compound below, determine the configuration of every chiral center. Then draw the…

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Q: The reaction shown forms two major substitution products. Draw both products and write a mechanism…

A: There is formation of 3° carbocation and it has planner structure so nuclophile can attack from both…

Q: Show a detailed mechanism for the following reaction. Include all arrows and steps. H₂C- CH₂ - OH…

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Q: Chloroacetic acid, CICH₂COOH, has a pK, of 2.87. What are [H3O+], pH, [CICH₂COO-], and [CICH₂COOH]…

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Q: Molecules with a plane of symmetry between the chiral centers are achiral and meso. Identify which…

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Q: [Review Topics] [References] Calculate the [OH] of each of the following solutions at 25°C. Identify…

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Q: 2. Indicate whether each of the following statements is true or false. If you think a statement is…

A: 1) If buckyballs can be woven into fabric, they could be used to create bullet and knife-proof…

Q: FeCl3 + Na3PO4 → FePO4 + NaCl If 0.6793 moles of FeCl3 are reacted with 3.3851 moles of Na3PO4, how…

A: Iron (III) chloride reacts with trisodium phosphate to form iron(III) phosphate and sodium chloride.…

Q: Which of the reactions are exothermic?

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Q: Chemistry 1. Calculate the pressure of non ideal gas of one moles of H2 (g) in the flask with the…

A: Since you have asked multiple question, as per our company guidelines we are supposed to answer…

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

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Q: Determine the molarity of ammonium hydroxide used to neutralize 2.5 M solution of hydroiodic acid.…

A: Ammonium hydroxide is a base and it is neutralized by strong acid HI. The products are ammonium…

Q: Is the following statement true or false? If you think the statement is false, rewrite it to make it…

A: The given statement is-  A laser light is a device that produces intense beam of light of a single…

Q: A student dissolves 11.3 g of sodium hydroxide (NaOH)in 300. g of water in a well-insulated open…

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Q: Firefly luciferase is the enzyme that allows fireflies to illuminate their abdomens. Because this…

A: Given, luciferin + O2⇌Oxyluciferin +light   ∆G°=? ATP ⇌AMP +PPi        ∆G°=-31.6 kJmol…

Q: Aqueous sulfuric acid (H₂SO4) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium…

A: Given - Weight of sodium hydroxide =2.7g Weight of sulphuric acid =2.0g Weight of water =0.250 g

Q: go Consider the orbital shown. Indicate the number of radial and angular nodes in this orbital.…

A: The number of radial nodes can be calculated using the formula n–l–1.  The number of angular nodes…

Q: Question 1 Write the structures of the organic products (A-K) in the following reactions. i Br CH,Br…

A: #(A): This is an example of cross Aldol condensation, where an aldehyde(Ph-CHO) and ketone (PhCOCH3)…

Q: For electromagnetic radiation, when wavelength goes UP, frequency goes DOWN. True False

A: Given,Electromagnetic radiation.

Q: 3er Server A3 Rab Rod Mayw lewat sepind dedor pod tyhle wei provided indicate the amount of rotation…

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Q: For the following question(s), consider the following balanced equation. Mg3N2 + 6H₂O → 3Mg(OH)2 +…

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Q: Rank the following compounds in order of reactivity toward an SN1 reaction. (1=best) CH3CH₂Br…

A: Given compounds are  We need rank these compounds in order of their reactivity towards SN1 reaction…

Q: (CH₂(CH₂) CH₂) reacts with gaseous oxygen gas to produce gaseous carbon dioxide (CO₂) and gaseous…

A: Given -> Weight of octane = 2.3 gm  Weight of O2 = 4.9 gm

Q: Emmett, a sophomore chemistry major, was trying to separate an unknown mixture.  His instructor told…

A: Here we need to identify the functional group present in fraction 1, fraction 2, and fractions 3…

Q: Macmillan Learning © In the reaction between the alkene shown and HBr, draw the structures as…

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Q: The formation of glucose from water and carbon dioxide is an extremely important reaction for life…

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Q: Aqueous hydrobromic acid (HBr) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Given - Weight of hydrobromic =39.6 g  Weight of sodium hydroxide=8.2g

Q: Osmotic pressure is a measure of (a) the change in vapor pressure when the external pressure changes…

A: The explanation is given below-

Q: If a system has 30.5 J of heat added to it, and the system does 75.5 J of work on its surroundings,…

A: Given, Heat is added to the system, q=+30.5 J System does work on its surroundings, W =-75.5J We…

Q: Select all of the correct statements about reaction rates from the choices below. The lower the…

A: The Answer to the following question is- 1.correct 2. correct 3. correct 4. false 5. correct 6.…

Q: acid or a Lewis base. pective bins.

A: Molecules ions Or species which donate the pair of electron that called Lewis base and species which…