1. What molecular weight shall be used for the computation? Show your complete solution. 2. What is the computed weight of H2C2O4? Show your complete solution. 3. What is the % oxalic acid in the sample? Show your complete solution

Q: Calculate the grams of lead(II) nitrate to make 766 mL solutions with the following concentrations.…

A: Molar mass of lead(II) nitrate = 331.2 g / mol

Q: What volume of 0.20 M H2SO4 can be prepared bydiluting 125 mL of 6.0 M H2SO4?

A: In chemistry laboratories, acids and bases are frequently used in reactions, But we know that some…

Q: What volume (in L) of 1.40 M FeBr₂ would be required to obtain 0.890 moles of Br⁻ ions?

A: Molarity = number of moles/volume in Litre Given, molarity = 1.40 M  Number of moles of Br- = 0.890…

Q: What volume (in L) of 1.5 M Na₂CO₃ would be required to obtain 0.90 moles of Na⁺ ions?

A: Dissociation of Na2CO3                                       Na2CO3  → 2Na++ CO3-2 From the above…

Q: A standard solution of a chemical compound was prepared by diluting 10.0 mL of a 5,0 M stock…

A: Answer : V1 = 10.0 mL C1 = 5.0 M V2 = 100.0 mL C2 = (C1 × V1 / V2 ) On substituting the values into…

Q: Determine the number of moles of citric acid per 240 mL of the vegtable juice.

A:

Q: #35 30.00ml of nitric acid(HNO3) with an unknown conecntration was placed into an erlenmeyer flask.…

A: This is an acid-base neutralization reaction. As calcium hydroxide is a dibasic solution it will…

Q: An unknown sample containing a mixture of NaCl and Na2CO3 was analyzed to determine the %…

A: Here we have to determine the percentage of Na2CO3 in the mixture by given volumetric analysis data…

Q: Calculate the molarity of a solution made by dissolving  1.5g of Ba(OH)2 up to a total volume of…

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: calculate the final volume of a 0.0315M solution prepared by diluting 32.5mL of 0.153M lithium…

A: A question based on concentration terms. The volume of the final solution after being diluted is to…

Q: In the following solubility curve, the substance with the highest solubility in 100 g of water at 20…

A: Step 1:In the solubility curve the point where a straight line drawn from the temperature axis meets…

Q: Hydrogen peroxide solution for hair bleaching is usually prepared mixing 5 grams of hydrogen…

A: Given  Mass of H2O2   = 5 gram  Molecular weight     = 34 gram/mole  Volume of solution   = 100 ml…

Q: How many liters of a 3.55 M KCl solution contain 45.8 g of KCI? Molar mass of KCI = 74.55 g/mol List…

A: This can be calculated using the mathematical expression of molarity, m=n/V  Now we have to…

Q: What weight of KCN is equivalent to 30.00 mL of AgNO3 solution containing 15.00 g/liter (b) by the…

A: Solution                            Given that Here weight of KCN is equivalent to 30.00 mL of AgNO3…

Q: How many grams of KMnO4 are required to make 250mL of 0.020M KMnO4 solution?

A: Volume of KMnO4 solution V = 250 mL Concentration of KMnO4 solution (C) = 0.020 M We have to…

Q: re asked to weigh 2 g of lithium and add it to 1500 ml of distilled water +2 drops of indicator,…

A: Li reacts with water releasing H2 gas and form LiOH. Clearly, Li is the limiting reagent. Reaction…

Q: How many mL of 0.900 M K2SO4 solution should be taken to prepare 250 mL of 0.450 M K2SO4 solution?…

A:

Q: Which of the following will produce a neutral solution when dissolved. Hint - will the dissolved…

A: The salts given are KF, NaCN and NH4I.

Q: 4.62mL of  .1510mL NaOH was needed to neutraliz 50.mL of H2SO4 solution. What is the concentration…

A: In the given question we have to calculate the concentration of original sulphuric acid solution.…

Q: "To what volume should you dilute 0.200 L of 15.0 M NaOH to make 3.00 M NaOH? Make sure to show your…

A: The number of moles of NaOH remains conserved in both the solutions. Let the number of moles of NaOH…

Q: Calculations: Use the following steps to calculate the percent mass of CaCO3 in an eggshell. Use the…

A: It is given that the molarity of NaOH is 0.046 M and the molarity for HCl taken is 1M, And the…

Q: 50.0mL of 0.180 M sodium hydroxide solution is added to 50mL of .200 M lactic acid solution. The…

A: NOTE : The formula of Lactic acid given in question is incorrect. it will be CH3CH(OH)COOH

Q: 27 If 35.0 g of CH3OH (MM = 32.0 g/mol) are dissolved in 500.0 mL of solution, what is the…

A: Since, Molarity is the number of moles of solute dissolve in one litre of the solution. Thus,

Q: Give correct detailed Solution...don't give Handwritten answer..don't use Ai

A: The objective of the question is to determine the number of hydrogen atoms in each molecule of…

Q: 11. If 56.1 grams of NaCl are dissolved in 44.0 mL of Sulfuric acid, H2SO4 Sulfuric acid has a…

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: 6 What volume of 0.220 M HBr solution (in mL) is required to obtain 0.0600 moles of HBr? A) 3.67 L…

A:

Q: Just number 3 please!

A: Molarity is the term used to define the concentration of the solution. It is a measure of the number…

Q: What is the purity test of salicylic acid and commercial aspirin?

A:

Q: 16- Aluminum Al in a 3.533 g soil sample was determined by precipitating as Al₂O₁ (102.0 g/mol).…

A: Mass of sample = 3.533 gMass of Al2O3 precipitate = 0.0435 gMolar mass of Al2O3 = 102 g/molfind the…

Q: To what volume (in mL) must 27.4 mL of 17.2 M H2SO4 be diluted to produce 1.43 M H2SO4?

A: According to the question, The initial molarity of the H2SO4 =M1= 17.2 MThe initial volume of the…

Q: a. How would you prepare the KOH solution? b. After standardization, what will be the exact…

A: Given -  KOH Solution volume = 500 mL  KOH Molarity = 0.250 M  KOH molar mass = 56.106 g/mol  KHP…

Q: b. Determine the number of moles of 0.01786 M acetic acid in 200 ml. (report 3 sig. fig.) liters x 1…

A: Concentration of acetic acid =0.01786 M Volume of acetic acid =200 ml Using the data we have to…

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.