Calculate the mass of bonic acid required to prepare ca 500 ml ca 4,0 % (m/V) boric acid solution in a 600 ml beaker (5) Calculate volume of (c) HCI to be diluted to ca 500 ml in a 600 ml beaker to produce a solution that contains ca 0,020 mol/l HCI (5)
Q: If a patient requires 2896kcal per day 50% carbohydrate, 40% protein and 10% fats, how many grams of…
A:
Q: Given the following reaction equation: CH4 (g) + O2(g) → CO2 (g) + H2O (l) a)Balance this reaction…
A:
Q: Question 6 a) Show using mechanism arrows how the anomeric centre in glucose inverts when it is…
A:
Q: 8 Below is the H-NMR of a reaction product of aniline. Provide the structure of the product and the…
A:
Q: CH₂CH₂CH₂
A:
Q: How many grams of water can be produced if sufficient hydrogen reacts with 26.0 g of oxygen? ●…
A:
Q: CH 3 CH ₂ OH + PCC Br Mg- - ? 1 - ? +
A: In this question, we will draw the structure of the first product then the structure of the final…
Q: Flask 1 2 3 Flask 1 2 3 initial burette reading 50 mL. 38 mL 28 mL volume EDTA required to chelate…
A: The explanation is given below-
Q: Zn(CN)2 Ksp (30°C) = 7.30 x 10-12 AgSCN Ksp (30°C) = 5.90 x 10-11 CL chose to investigate the…
A: We have two different salts, Zn(CN)2(s) and AgSCN(s) to compare and find the unknown salt out of…
Q: OH + HCrO4 +
A: we need to draw major product and write its IUPAC name
Q: O cles CL CH3 CH2 CCH3
A:
Q: (MW = 44 g/mole) was collected on absorbent and found to weigh 0.1673-g. Calculate the percentage of…
A:
Q: 10. Nitrogen, hydrogen, and ammonia (NH3) are all composed of molecules. What is it about a molecule…
A:
Q: Ni(CO).(g) ← 2 03(g) → 3 O₂(g) Ni(s) + 4 CO(g)
A: Write the expression for Kc (equilibrium constant) for the following reactions.
Q: 8 Provide the structure and name of C,H,N whose H-NMR is shown below 3H 2H 2H 2H 7 6 LO 5 4 PPM 3 2…
A:
Q: Briefly identify the important distinctions between: A. saturated hydrocarbon and an unsaturated…
A:
Q: The molecular weight of NaOH is 40. How many grams of NaOH pellets are needed to make 250 mL of…
A:
Q: Draw an orbital diagram to represent the electronic configuration of atoms.
A: To draw orbital diagram we first have to write electronic configuration of that atom. In this…
Q: What is the maximum mass of cyclohexene (density 0.81 g/mL, MW = 82.14 g/mol) you can recover from…
A:
Q: The oxidation number of Na in Na₂SO is:
A:
Q: The rate of an enzyme-catalyzed reaction (in mM/min) was determined at different concentrations of…
A: Since you have asked multiple questions, we will solve first question (Q.No.-14) for you. For…
Q: If C12H24 reacts with HBr in addition reaction, what is the molecular formula of the product?
A:
Q: 7. Draw the structure for each compound. ( A. acetylene B 3-methyl-1-hexyne C. 4-methyl-2-hexyne D.…
A:
Q: 27. Which type of reaction is represented by the equation below? Note: n and n are very large…
A:
Q: A 50.00-mL of 0.0500 M Sn²+ was titrated against 0.100 M T1³+ in acidic medium. a. Write the balance…
A:
Q: 24) When the following net-ionic equation is balanced in an acidic solution, what is 24) the sum of…
A:
Q: The K₂ of a monoprotic weak acid is 0.00493. What is the percent ionization of a 0.103 M solution of…
A: We have to predict the percentage ionization.
Q: 12. Sulfuric acid can dissolve aluminum metal according to the following reaction. 2 Al(s)+3 H₂SO4…
A: Given-> Weight of Al = 29.0 gm Volume of Sulphuric acid (H2SO4) = 1.80 L Molarity of H2SO4 = 1.00…
Q: Consider a voltaic cell with the cell notation shown below. Which of the following statements is…
A: Here we have to predict the incorrect statement for the following given Galvanic cell reaction.
Q: 28.5 g
A: Mass of 1 square inch of air =14.7 psi 1 psi =453.592 grams 14.7 psi= =14.7 x 453.592 =…
Q: Can you please draw only the structures of the reactant needed and the product formed?
A:
Q: How much UF6 can be produced from 740.5 g of UO2? * 104.1 g UF6
A:
Q: B) Derive the work expression during the polytropic process (P₁v₁" =P₂v₂ Constant) of an ideal g
A: Given polytropic process is : P1V1n = P2V2n = Constant => PVn = K(constant)
Q: Nicotine is a naturally produced alkaloid and is widely used recreationally as a stimulant that…
A: Given, Nicotine is a naturally produced alkaloid, it is composed 74.017% C, 8.714% H and 17.269% N.…
Q: If the Standard Potential cell for the following AgI/Ag and I/I Was -0.152vand o, suv respectillery.…
A:
Q: The ketone produced in the process is: H diphenylketone benzaldehyde O benzeneketone benzoyl…
A:
Q: The reaction below is an illustration of the chemistry of scents. The product formed, B, is odorless…
A:
Q: What is the pH of the final solution if 25.0 mL of 0.10M NH3 is titrated with enough 0.10M HCl to…
A: Given, The pH of the final solution if 25.0 mL of 0.10M NH3 is titrated with enough 0.10M HCl to…
Q: Milligram of base required to completely hydrolyze & neutralize 1 g of triglyceride/fat sample…
A:
Q: mal expansion of an ideal gas against zero pressure, w = 0, A n of the complex [Co(en)3]³+ at 25 °C…
A: As we know,in isothermal process, Temperature remains constant. And for Spontaneous process, □G is…
Q: Peripheral proteins are proteins in the lipid layer facing inside the membrane True False
A: Integral proteins are embedded in the membrane Where as Peripheral proteins located on surface of…
Q: The molecular weight of NaOH is 40. How many grams of NaOH pellets are needed to make 250 mL of…
A:
Q: 2. Complete the following tdde with the needed [H3O+], [CH], and pH, and dassify the solution as…
A:
Q: Write the basic equilibrium equation for NH3 NH3(aq) + H₂O(1) NH OH(aq)
A: we have to write basic equilibrium equation for NH3
Q: For the aqueous [Ni(NH₂)]²* complex K₁ = 5.50 × 108 at 25 °C. Suppose equal volumes of 0.0078M…
A: We need to calculate concentration of Ni2+ at equilibrium
Q: To what structural effect do you attribute the preference of methyl bromide over t-butyl bromide in…
A: Alkyl halide undergoes substitution reaction via either SN1 or SN2 pathway depending upon the…
Q: B C. CHUCH CHUCH H כיכ ככל H
A:
Q: P0-12. Which structure is consistent A with this 'H NMR spectrum? CH3 H₂O HJC OH H.C. (A) OH (C) CH3…
A:
Q: Determine the most basic among the three
A: Among the given compounds basic nature is due to presence of lone pair on the nitrogen atom.
Q: A chemical engineer is studying the two reactions shown in the table below. In each case, he fills a…
A:
Step by step
Solved in 2 steps with 1 images
- A pharmacist is conducting an analysis of 2.7 g sodium bicarbonate and titrated with 26.05 mL of 0.9987 N HCl. What is the potency or percent assay of sodium bicarbonate? Did it pass the USP requirement? ROUND-OFF TO 2 DECIMAL PLACES. Answer = _% Disposition (Passed or Failed) = _An unknown sample of Cu2+gave an absorbance of 0.262. Then 1.00 mL of solution containing 100 ppm (ug/mL)Cu2+was mixed with 95.0 mL of the unknown and the mixture was diluted to 100 mL in a volumetric flask with deionized water. The absorbanceof the new solution was 0.500. a.Denoting the initial unknown concentrationas [Cu2+]i,write an expression for the final concentrationafter dilution [Cu2+] b.Find [Cu2+]in the unknown.Was wondering how to solve this hw problem? Calcium Flouride (dissociation) K@25 C = 3.94 *10^-11 Calcium fluoride is not very soluble in water. ** Its dissociation is: CaF2 (s) Ca²+ (aq) + 2 F¯ (aq) a. At 25°C, how many milligrams of CaF2 would dissolve in 2.0 L of water? b. What were your initial and final values of Q?
- 1a.) what is the solubility of Hg2CO3 in pure water in grams/liter, if the Ksp=89x10^-17 b.) If your target goal is to have no more than a concentration of CO3-2 dissovled in water equal to 75ppb, what concentration of HG+1 needs to be in the solution? c.) how many grams of Hg(NO3) would you need to put in 2.5 liters of water to produce this concetration of mecury ion?A 0.8250 g of soda ash sample was dissolved in distilled H O and diluted to 250-mL using a volumetric flask. A 50.00 mL aliquot portion of the dilute soda ash solution needed 4.50 mL of 0.1200 M HCl to reach the phenolphthalein end point and 10.00 mL to reach the methyl orange end point. From the volumes of HCl needed to reach the phenolphthalein and methyl orange endpoints, how many millimoles of NaHCO are there in the aliquot portion that was titrated?You need to make 100 mL of 1% Atropine sulfate solution and make it isotonic with sodium chloride Atropine sulfate has a MW of 695 and is 3 ions. (E = 0.12) For 100 ml of 1% atropine sulfate we have 1 g of atropine sulfate 1: How much NaCl is the atropine sulfate equivalent to 2 How much Sodium Chloride would be needed to make 100 mL of water isotonic? 3 How much sodium chloride should be added to the 1% atropine sulfate solution to make it isotonic
- When fluorite (CaF2; see photo) is pulverized and shaken in water at 18°C, 10.0 mL of solution contains 1.5 x 10-4 g of solute. Find the Ksp of CaF2 at 18°C.What is the percent magnesium hydroxide, if a sample of magnesia magma weighing 5.2430g when dissolved in 25 mL of 0.9915 N H2SO4 required 9.85 mL of 1.4102 N NaOH to titrate the excess acid? Round to 2 decimal point; Answer should be with the correct unit.As solution was prepared by dissolving 5.76g of KCl.MgCl2.6H2O (277.85g/mol) in sufficient water to give 2.000L. calculate a. pMg for the solution b. pCl for the solution
- What is the percentage purity of acetic acid if 2.6 grams required 32.5 ml of 0.994 N NaOH solution to reach the endpoint? Does it conform to USP requirements for acetic acid 3%-6%?Over time, as their free fatty acid (FFA) content increases,edible fats and oils become rancid. To measure rancidity, the fator oil is dissolved in ethanol, and any FFA present is titrated withKOH dissolved in ethanol. In a series of tests on olive oil, a stocksolution of 0.050 Methanolic KOH was prepared at 25C, storedat 0C, and then placed in a 100-mL buret to titrate any oleic acid[CH₃(CH₂)₇CH=CH(CH₂)₇COOH] present in the oil. Each offour 10.00-g samples of oil took several minutes to titrate: thefirst required 19.60 mL, the second 19.80 mL, and the third and fourth 20.00 mL of the ethanolic KOH.(a) What is the apparent acidity of each sample, in terms of mass% of oleic acid? (Note:As the ethanolic KOH warms in the bu-ret, its volume increases by a factor of 0.00104/C.)(b) Is the variation in acidity a random or systematic error? Ex-plain.(c) What is the actual acidity? How would you demonstrate this?1. A solution of HClO4 was standardized by dissolving 0.4008 g of primary-standard-grade HgO in a solution of KBr: HgO(s) + 4Br- + H2O → HgBr42- + 2OH- The liberated OH2 consumed 43.75 mL of the acid. Calculate the molar concentration of the HClO4. 2. A 0.4723-g sample of primary-standard-grade Na2CO3 required 34.78 mL of an H2SO4 solution to reach the end point in the reaction: CO32- + 2H+ → H2O + CO2 (g) What is the molar concentration of the H2SO4? Using step-by-step process.