What is the titer (expressed in milligrams per milliliters) of a solution of oxalic acid dihydrate with respect to calcium  oxide if 21.49 mL of it was needed to titrate 0.2203 g of calcium oxide?

Q: Pa is equal to - atm.

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Q: Balance the following equation: - - > 4He + X 8Be 4

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Q: Carboxylic acid contains -OH and a C=O. a True b False

A: Carboxylic acid contains -OH and a C=O.

Q: A detector measures the amount of light generated by the flame and not absorbed by iron. True False

A:

Q: Pesticide residues were found in a lot of oranges; the compound identified was the epoxide of…

A: Given data:

Q: Consider the reaction 2N205(g) =4NO2(g) + O2(g) at 25°C for which the following data are relevant:…

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Q: Which of the statements about precipitation reaction is correct? It is a method that can be used…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: A 210-gram aluminum block at a temperature of 55°C is placed into an insulated container with 360…

A: The final temperature of the metal and ice is needed to be calculated if 210 g of aluminum block at…

Q: Solve for the pH level of an ammonia buffer. Given that it contains 500.0 mL of 0.3701 M ammonia and…

A: pH of buffer solution is calculated by using Henderson Hassel balch equation

Q: Based on the structural properties of 7EHE, how resistant (or sensitive) would your protein be to…

A: Protein denaturation alters the normal alpha-helix and beta sheets of a protein that uncoils the…

Q: The reaction N204(g) = 2NO2(g) has a K, = 0.140 at 25 °C. In a reaction vessel containing the gases…

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Q: 2MnO4— +  5C2O42— + 16H+ 2Mn2+ + 10CO2 + 8H2O A solution of KMnO4 was prepared and 50.99 mL was…

A: Dear student, As you have asked multiple question but according to guidelines we will solve first…

Q: Answer 1,2,3,4,5. Answer ad Show solution. No need to discuss each step of the solution. Keep it…

A: (1) PbO2 + HBr ---> PbBr2 + O2 + H2O  Here Oxidation state of Pb decreases from +4 to +2 , thus…

Q: Compute for the water activity of a bottled beef rendang containing 15g salt and 275g of water.…

A: Given that -  Mass of salt in bottled rendang = 15 g  Mass of water = 275 g  Molecular weight of…

Q: The reaction N204(s) 2NO2(3) has a K, - 0.140 at 25 °C. In a reaction vessel containing the gases in…

A: Given: Kp = 0.140 Partial pressure of N2O4 = 0.138 atm

Q: At a certain temperature, the reaction 2HF(s) = H2(g) + F2(g) has K. = 1.2 x 10-13. Does this…

A: A larger value of equilibrium constant (Kc) indicates that the reaction proceeds far towards…

Q: Calculate the density and the uncertainty of an Al cylinder using the following data. Metal AI Mass…

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Q: A spot of crude plant extract was placed on a glass plate coated with C18 silica gel. The…

A: The result is shown below. Which of the following spot is the most soluble in water?

Q: Four test tubes containing different hydrocarbons: acetone, benzoic acid, cyclohexane, and…

A: Given that, four test tubes containing different hydrocarbons: acetone, benzoic acid, cyclohexane,…

Q: Matching Type: Reactions differentiating test for oxidizable carbons A. 2,4-DNPH Test…

A: In SN1 mechanism carbocation intermediate is formed...

Q: Silver thiocyanate forms the red colored compound with ferric ammonium sulfate after reaching the…

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Q: The rate equation for the reaction A→B + C is expressed in the forms of rate of disappearance of A =…

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Q: Really hoping for solutions since I’m having a hard time with this. Pls. skip if unsure or not…

A: #(a): Given 10 μL of the solution is diluted to 10 μL + 190 μL = 200 μL to form the final solution.…

Q: The bombarded fragments leads to the formation of molecular ion which is translated into ()? mole…

A:

Q: Which of the following represents the relative leaving group abilities of the halide ions?   a…

A: Which one of the following is correct

Q: Ovalene

A: The given compound is :  The structure below is an aromatic hydrocarbon that follows the Huckel’s…

Q: Answer the following: Given that a  solution of KMnO4 was prepared and 21.68 mL was used to…

A: Given-> Volume of KMnO4(V1) = 21.68 ml = 0.02168 L Weight of Na2C2O4 = 0.2252 gm Molecular weight…

Q: Which of the following statements BEST describe the given chromatogram?     Peaks 14, 18, 20 and…

A: To determine which statement best describes the given chromatogram.

Q: Above what Fe2+Fe2+ concentration will Fe(OH)2Fe(OH)2 precipitate from a buffer solution that has a…

A: Given,  pH = 9.77  Solubility product constant of Fe(OH)2 = Ksp = 4.87 x 10-17  Calculate the…

Q: Arrange the following sets of organic compounds according to decreasing solubility in water   I.…

A: Alcohol can be defined as an organic compound in which carbon atom is attached to hydroxyl group.

Q: In general, acidic organic compounds are soluble in bases and basic organic compounds are soluble in…

A: According to the concept , like dissolves like . Polar solute dissolves in polar solvent where…

Q: Which of the following studies WILL LEAST LIKELY use the standard chromatogram of caffeine? analysis…

A: To determine: Which studies will least likely use the standard chrmatogram of Caffeien

Q: What is the %composition of the Vitamin A peak in the sample? O 7.867% 77.73% O 78.43% O 72.74%

A: To calculate % composition of vitamin A in the sample.

Q: Chemistry 19.10.-Calculate the standard potential, „E°, for this reaction from its AG° value.…

A: Given, X(s) + Y4+(aq) → X4+(aq) + Y(s)  ∆Go = 31.0 KJ = 31000 J

Q: Which of the following test will produce a green flame after heating an immersed copper wire? O…

A:

Q: HO and ?

A: Alcohol can be defined as an organic compound in which carbon atom is attached to hydroxyl group.

Q: What is the concentration of a standardized HCl solution that required 50.78 mL of HCl to titrate…

A: we need to find the concentration of HCl needed for the titration

Q: The rates of many reactions approximately double for each 10°C rise in temperature. Assuming a…

A:

Q: Consider the following balanced equation: Cl 2(g) + 2 Br (aq) → Br 2(aq) + 2 CI (aq) [CI 2] [Br ]]…

A: The rate law for the reaction can be written as: rate=kCl2xBr-y......(1) Here, x is the order with…

Q: A student wants to prepare a standard solution of BSA. They create a stock solution of BSA by add…

A: Concentration of stock solution=0.174 g10 mL=0.0174 g/mL

Q: Comparing a straight-chained and branched alcohol with the same number of carbons; the branched…

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Q: Where do ions in soil come from? (A organic matter B rain weathering of parent material D all of the…

A: We have to tell the source of the ions in the soil.

Q: He discovered that coal tar's major components were aromatic hydrocarbons, a class of compounds…

A: 1. He discovered that coal tar's major components were aromatic hydrocarbons, a class of compounds…

Q: Arrange the following compounds based in decreasing solubility in 5% HCl: NH N-CH3 O,N IV II The…

A: The solubility of given compound in 5% HCl is

Q: Alo + FeO → Al½O36) + Fe)

A: Balanced the equation--->

Q: In 2006, the synthesis of Uuo (an isotope of element 118) was reported to involve the bombardment of…

A:

Q: During the experiment, when calculating for  ΔH using the formula  ΔH = C x ΔT, can we calculate the…

A: Calorimetry is based on the principle of conservation energy, i.e. the total heat lost by the hot…

Q: Tertiary alcohol has its hydroxyl group attached to the carbon atom that is connected to 4 alkyl…

A: Given statement is false.

Q: Fehling’s Test is not a strong enough oxidizing agent to react with aromatic aldehydes. a True b…

A:

Q: The following reaction was pertormed in tthe lab: CH,OH CH3 CH3 Br vo dimerent elimination reaction…

A:

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.