Which refluxing apparatus is set up to keep moisture out? < OC OB and C OA O B T none

Q: A 0.3000 g sample of impure Na2CO3 requires 36.31 mL of a 0.1075 M HClO4 solution to reach the end…

A: Molarity of HClO4 = 0.1075 M  Volume of HClO4 = 36.31 mL = 0.03631 L Mass of sample = 0.3000 g  We…

Q: The hardness of 20,000 liters of a sample of water was completely removed by passing it through a…

A: Zeolite softener was used to remove the hardness of 20,000 liters of water sample completely.

Q: We the balanced formula unit equation for the complete neutralization of dilute H3PO4 with CaOH2 in…

A: When an acid reacts with a base salt and water will form. When phosphoric acid (H3PO4) reacts with…

Q: Part C Br₂ 100 °C

A: 2-methylcyclohexa-1,3-diene is treated with Br2 in two conditions - at low temperature and at high…

Q: You have prepared 1.000 M of NaOH solution. To determine the accuracy of the solution you prepared…

A: KHP is a monoprotic acid. Hence it will react with base NaOH as per the reaction, =&gt; KHP + NaOH…

Q: Complete the balanced neutralization equation for the reaction below. Be sure to include the proper…

A: Answer: In the given reaction an acid (acetic acid) is reacting with a base [Sr(OH)2] and we have to…

Q: How many minutes are needed to form 10.00g of Mg molten MgCl2 using 3.50 A of current

A: After passing of electricity the equivalent amount of Metal is deposited .

Q: What is the oxidation number of H in each of the following: H2(g); H2SO4; NaH For the toolbar, press…

A: Oxidation number Oxidation number  of an atom/ion is the number of electrons an atom/ion that the…

Q: A 1.9574-g of commercially available vegetable oil sample was analyzed to determine its iodine…

A:

Q: 4H"lagCrSo + 2HOn 3.0x 10 Lof asolution. All of the chromate is removed and 2.94x 10 kgof the…

A: The question is based on quantitative estimation of concentration of chromate Ion present initially…

Q: Q4 | What is the purpose of conducting the recrystalization process of the product ?

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Q: A mixture has thre components. The percentage of sand was determined to be 26.04%, the percentage of…

A:

Q: What mass of KNO3 [MW=101] is needed to prepare 250.0mL of 0.450 M KNO3 in water?

A:

Q: Calculate the Concentrations of the Diluted Solutions 1. Transfer 50 ml of a 1.50 mol/L stock…

A:

Q: For a 50ml beaker, 0.4532g of pure iron III oxide was weighed, to which 1 ml of a concentrated…

A: The objective of the question is to calculate the final concentration of the iron III cation…

Q: From 0.8 av lb of 20% w/w KOH solution, O72.6 121 142 86.2 g of 12 percent w/w KOH may be produced.

A: A question based on dimensional analysis that is to be accomplished.

Q: What is the molarity of 1 kg of KNO3 (MW=101.11g) dissolved in 2.75 L of solution?

A: Molarity is the number of moles of solute present in one liter of solution. It is represented by M.…

Q: Average the two percentages and calculate the percentage difference. given : Concentration of…

A: Average percentage - It is the average of the two percentages.…

Q: 3. The end point is the point where equal masses of reactants combine */^~²) 2-) O False True

A: 3)The endpoint in a titration is defined as the point at which the indicator changes colour.  Note:…

Q: y grams

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Q: tme oxidatien numbers calculate of the Followiing a. S in SOg S0z. 2° |2. Up in

A: Given  Molecule = SO3 Oxidation number of S = ? Species =  Cr2O72- Oxidation number of Cr = ?

Q: Consider the below redox reaction: IO¸˜¯+2TI* +2CI¯ +6H* IC₁₂¯ +2T1³ + 3H2O Find out what is oxidant…

A: The objective of the question is to identify the oxidant and reductant in the given redox reaction.…

Q: The solubility of nitrates of alkali metals in water is  C   a.  LiNO3< KNO3 < NaNO3 < FrNO3…

A: "Like dissolves like" is the thumb rule for dissolution of solute in solvent. This means covalent…

Q: Determine the molarity of a solution prepared by dissolving 155.6 g of citric acid, C3H5O(COOH)3, in…

A: Mass of citric acid=155.6 g   Molar mass of citric acid = 192.124 g/mol Moles = Mass ÷  Molar mass…

Q: A 5.00 mL sample of brandy was diluted to 1.00 L in a volumetric flask. The ethanol in 25.00 mL…

A: 3C2H5OH + 2Cr2O72- + 16H+ → 4 Cr+3 + 3CH3COOH + 11H2O

Q: Is Mn(OH)2 soluable in water?

A: Most of the hydroxide salts of metals are insoluble in water.

Q: Determination of Sulfates in water (Analysis) Background and Principles - Concept/knowledge about…

A: Determination of sulfates in water in water. In water various types of contaminants available and…

Q: 2.23 gr sample taken from a bleaching powder is dissolved and completed to 250 ml. Taken from here…

A: Answer:- This question is answered by using the simple concept of stoichiometry using balanced…

Q: NB Assume the densities of all solutions are 1.0 g/ml and their specific heat capacities 4.184 1/g.…

A: We are given thermochemical data for the neutralization reaction between HCl(aq) and NH4OH(aq) and…

Q: A 0.879 g sample of a CaCl2·2H2O/K2C2O4·H2O solid salt mixture is dissolved in ~100mL of deionized…

A: Given:Mass of CaCl2.2H2O +mass of K2C2O4·H2O = 0.879 g.Mass of CaC2O4 = 0.284 g.Volume of water =…

Q: Which refluxing apparatus is set up to keep moisture out? A OC O B and C OA OB none • Ren B PAGINION…

A: To keep the moisture out of your reaction, we have to use a drying tube and the inlet adapter in the…

Q: Five white, 500-mg uncoated ascorbic acid (AA) tablets with an average weight of 0.6152-g were…

A:

Q: Dilution is necessary for commercially available acids such as HNO3, H2SO4 etc so that the strength…

A: Comercially HNO3 is available in 68% (V/V) in water. Comercially available data of HNo3  Density=…

Q: The toxicity and solubility of an element (e.g., As, Cr, U) is never related to its oxidation state.…

A:

Q: The first goal is to make the oxalic acid standard solution.  You measure 1.5232 g of oxalic acid on…

A: Molarity of a solution can be obtained by dividing the number of moles of solute by the volume of…

Q: The first goal is to make the oxalic acid standard solution.  You measure 1.5232 g of oxalic acid on…

A: Since, Number of moles of a substance is the ratio of mass of the substance to its molecular mass.…

Q: The silver ion in a 25.00-mL sample was converted to dicyanoargentate (1) ion by the addition of an…

A: Given :  Volume of silver ion solution = 25.00 ml  Volume of EDTA solution used = 43.77 ml…

Q: 8. A 2.856-g sample of limestone was analyzed for Fe, Ca, and

A: A 2.856-g sample of limestone was analyzed for Fe, Ca, and Mg.