What can cause errors in the extraction of copper with nitric acid lab using a spectrometer?

Q: Calculate the % relative error if the true value is 25.00% Cu. (A) 0.47% (B) 0.29% -1.0% D -1.2%…

A:

Q: Which form if EDTA is used in any analytical experiment? Why?

A: Ethylenediaminetetraacetic acid (EDTA) is used as a metal-chelating agent. It is a chemical that…

Q: 64. This process of separation is called O recrystallization process O sublimation process O…

A:

Q: Create a flowchart for the separation and identification of the following metal cations. Make sure…

A: The flow chart is as follows,

Q: Voltammetry is limited to analysis of inorganic samples only True or false

A: Answer:  False Voltammetry is an accurate electro-analysis method and combination with…

Q: How are impurities separated from bauxite ore to get pure alumina?

A: To find: How are impurities separated form the bauxite ore to get pure alumina

Q: Write 2 recognition reactions of iron.

A: Iron- Symbol-Fe Atomic number-26 In periodic table Iron is present in first transition series and…

Q: Which among these is the most important piece of data in a gravimetric analysis?   Mass of analyte…

A: Gravimetric analysis :  Gravimetric analysis, a method of quantitative chemical analysis in which…

Q: True or False 1. Magnetite is not susceptible to residual concentration. 2.Copper is susceptible to…

A: Residual concentration is the accumulation of valuable minerals on rocks or surfaces which has been…

Q: A solution of potassium permanganate of unknown concentration was analyzed against a standard of…

A: Given

Q: Yellow (hot) Blue (cold) Blue (cold) Yellow (hot) Figure 3

A: The best statement that explains why the thermal energies in cold water and in hot water are…

Q: What are the quality control test used for magnesium citrate solution?

A: Magnesium citrate solution is a commonly used laxative that helps to alleviate constipation. As with…

Q: Nitrite ion, NO2-, is a preservative for bacon and other foods, but it is potentially carcinogenic.…

A: a) The absorbance due to the coloured product from nitrite added to sample C is, 0.967 - 0.622 =…

Q: Silver nitrate can be purchased as high purity grade and does not require to undergo standardization…

A: The secondary standard solutions are used in the companies which prepare regents, laboratory kits,…

Q: Answer and explain the 2 questions below. No copy-paste in google, please.  When is magnetic…

A:

Q: The name of the product of the hydrogenation reaction of 1-chloro-2- methyl-2-butene would be To…

A: Hydrogenation is the addition of hydrogen atom across the multiple bond of carbon atom. It takes…

Q: How do you pack the silica in a column ?

A: The objective of the question is to understand the process of packing silica in a column, which is a…

Q: 20% H2SO4 L added Au1 i

A: The values of added gold and emission intensity count can be given. To find the concentration of…

Q: how to balance PCl3 + Cl2

A: Balancing a chemical equation involves equating the number of all the atoms on each sides of the…

Q: What types of metals are usually purified by the method of zone refining? Give an example.

A: Metals are lustrous elements. They are good conductors of heat and electricity. They are malleable (…

Q: A copy of your chemistry textbook is found to have a mass of 2.52 x 10³ grams. Using unit analysis,…

A:

Q: 3.4 Why is it difficult to deposit Al-Cu alloy by evaporation or by CVD? Why does sputter deposition…

A: The question asks why it is difficult to deposit Al-Cu alloy by evaporation or CVD, and why sputter…

Q: Question 7 Status: Not yet answered | Points possible: 1.00 Consider the reaction of copper with…

A: The copper is oxidised by nitrate in the nitric acid.The hydrogen is not capable of the oxidation…

Q: If a second brass washer of 0.6003 grams had been dissolved in nitric acid, diluted to 50.00 mL and…

A: Solution

Q: You were tasked to separate the components of a mixture containing silica, sodium chloride and…

A: We are given a mixture of silica, sodium chloride, and charcoal, and we have to separate each…

Q: What is the best method to clean oil-based paints from paintbrushes? Use chemistry to back up your…

A: Oil - based paints should be washed off from paintbrushes before painting.

Q: Chemistry Explain why manganese which has an average minimum exploitable grade of 35% has a higher…

A: The concentration factor is defined as the ratio of average concentration of an element in a mineral…

Q: 0.0123 g of the powder from the tablet ( 1.4770g) was transferred to a 100 mL volumetric flask. 20…

A: From the graph equation given, y = 0.0184x + 0.007 y=absorbance x=concentration Absorbance for…

Q: A 0.8088 g sample of limestone was analyzed for Ca. The calcium was isolated as CaSO4 yielding a…

A: Number of moles = mass/molar mass

Q: Why is water not used as a solvent in extraction of nuts

A: A question based on extraction of nuts, which is to be accomplished.

Q: 2. The goal behind suction filtration is to remove soluble impurities that are on the surface of the…

A: Suction filtration is generally used in chemistry labs to remove impurities from liquid samples. It…

Q: What is the safety precaution associated with handling the crucible, clay triangle, and tripod.? At…

A: A clay triangle is a piece of laboratory apparatus that is used to support a crucible being heated…

Q: 14. Carbon is the link between the kiln gas and the lime. true or false

A: Carbon is the link between the kiln gas and the lime.

Q: A spectrophotometric method for the analysis of iron has a linear calibration curve for standards of…

A: In a 1 L volumetric cup: CFe3+ is almost 0.5 g/L x (40… 60)/100 = 0.2… 0.3 g/L (around 0.25) The…