It takes 27 microliters of solution to produce a spot with a 1.2 cm diameter. If the Cu(NO3 )2 solution contains 14 g of Cu 2+ per liter, how many micrograms of Cu 2+ ion are there in one spot of that size?

Q: Calculate the mass of ½ gallon of commercial bleaching solution having a density of 1.05 g/ml. (1…

A: Mass of the substance  = Volume of the substance × Density

Q: A mixture of cyclohexane (b.p 81 °C) and toluene (b.p 110.8 °C) need to be separated and collected…

A: Given that, a mixture of cyclohexane (b.p 81 °C) and toluene (b.p 110.8 °C) needs to be separated…

Q: What is chromatography, and how does it work?

A: Chromatography is a scientific method for extracting constituents of a mixture. The mixture is…

Q: A calibration curve of ZnCl2 conductivity (y-axis) vs concentration (mass percent, x-axis) is made.…

A: In the linear regression plot, the X-axis represents the mass percent of ZnCl2. The Y-axis…

Q: IXing salt and suga

A: There are two kinds of change we can see around  Physical change Chemical change Physical change…

Q: You are required to analyze the semiconductor wastewater samples containing with cadmium. A sample…

A: A question based on qualitative analysis of cations that is to be accomplished.

Q: Assuming all other values are accurate, what would happen to the experimental value of Rif the Mg…

A: R is a constant .

Q: Part C The absorbance of a cationic iron(II) sample solution was measured in a spectrophotometer,…

A: Answer :- Part A :- M1V1 = 0.0514 (mol) Part B :- V1 = 6.42 (mL) Part C :- Original Concentration Of…

Q: How many microliters are in 30mL?

A:

Q: Calculate the mass of ½ gallon of commercial bleaching solution having a density of 1.05 g/ml. (1…

A:

Q: 18. A 250.0 kg sample of ore contains 5.91 micrograms of gold. What is the concentration of gold in…

A: The correct option is D

Q: For questions 48-55, please refer to the following:   In order to form Ba(IO3)2, 500 mL of 0.5000…

A: Molarity of Ba(IO3)2 = 0.5 M Volume of Ba(IO3)2 = 500 ml Molarity of NaIO3 = 0.5 M Volume of NaIO3 =…

Q: Data of Candy: Mass of candy: 6.1115g Concentration of NaOH (M): 0.09639 Volume of NaOH solution…

A:

Q: A molecular biologist measures the mass of cofactor A in an average yeast cell. The mass is 21.18…

A: 1 microgram (ug)  =  1000000 picograms(pg)

Q: Drinking water usually contains 1.6 ppm fluoride (F2) to help prevent tooth decay. Consider a…

A: The volume of the reservoir in L is calculated as shown below.

Q: If the caffeine concentration in a particular brand of soda is 2.91 mg/oz,2.91 mg/oz, drinking how…

A: The caffeine concentration in the soda is 2.91 mg/oz. A single can has 12 oz.The amount of caffeine…

Q: In the filtration step, the product is washed with "two 4 ml portions of ice-cold water". Explain…

A: Filtration is a type of physical separation method. In this method usually solids are separated from…

Q: two solvents A (d=0.859 g/mL) and B (d = 1.290 g/mL) are immiscible. When 12.0 mL of solution A is…

A: Density=1.0314g/ml

Q: in the experiement for extraction of copper sulphate from impregnated vermiculite. what would be the…

A: Introduction :  Copper is extracted from various sulfide ores. The most common are bornite and…

Q: Why is it necessary to calibrate lab instruments such as a thermometer and volumetric glassware?

A: An instrument that has the capability to measure the temperatures or temperature changes in a…

Q: If we have a salt solution with a density of 1.2g/cm^3 and a metal bar with a density of 8.96g/cm^3,…

A: Given : density of salt solution = 1.2 g/cm3  Density of metal = 8.96 g/cm3  And mass of both = 100…

Q: Calculate the mass and volume (mL) of 5.0 mmol triethylsilane Mw: 116.28 g/mol Density: 0.728 g/mL

A: Given :-  moles of triethylsilane = 5.0 mmol  Molecular weight = 116.28 g/mol Density= 0.728 g/mL…

Q: 2. What’s the main purpose of the glass shields on an analytical balance? A. To calibrate the…

A: The main purpose of the glass shields on an analytical balance is to remove the air current so that…

Q: The volume dispensed from the buret amounts to 32 33 32.25 ml O 33.75 mL O 33.70 ml O 32.20 mL

A: Given,

Q: In lab this week, assume you use a 25.00-ml volumetric pipet to transfer the standard red dye…

A: Volume of stock solution taken (V1) = 25 mL Volume of the solution made in volumetric flask (V2) =…

Q: A laboratory stock solution of sulfuric acid has a concentration of 9.50 M. What volume of…

A: Concentration or volume of the concentrated or dilute solution canbe determined using the…

Q: What is the practical importance of extraction in relation to chemistry especially when it comes to…

A: Extraction is important  for  Isolating important  materials from plants  .

Q: 2. A prescription balance has a sensitivity requirement of 0.006 g. Explain how you would weigh…

A:

Q: A molecular biologist measures the mass of cofactor A in an average yeast cell. The mass is  56.54…

A: The given mass=56.54g Number of cells = 105 cells

Q: A molecular biologist measures the mass of cofactor A in an average yeast cell. The mass is 64.22…

A: Metric conversion factors are used to convert the units of numbers.  Some of the factors that can be…

Q: Geddy and Neil are measuring the melting point of their starting material prior to their lab…

A: Melting point is done so as  to measure the melting point of samples and check the purity  of…

Q: Two liquids, A and B are immicible. Liquid A has a density of 0.89 g/mL. Liquid B has a density of…

A: The solution is given below -

Q: This is my 2nd attempt to receive help with this problem. The previous expert confused me by saying…

A: According to the VSEPR theory, the geometry of the molecule depends on the number of bond pairs and…

Q: Why is it important to know the use of laboratory tools and equipment?

A: Please find your solution below : It is important to know the use of laboratory tools and equipments…

Q: What volume of iron (density 7.87 g/cm3) would be required to balance a 2.80 cm3 sample of lead…

A: Given- Density of iron = 7.87 g/cm3 volume of lead sample = 2.80 cm3 (V1) Density of lead = 11.4…

Q: To determine the phosphate concentration in a water sample, the following standard curve was…

A: The calibration curve between the absorbance and concentration of phosphate ion is given as, Given:…

Q: What is the uncertainty of 125.00 ml using a 25.00 (+/- 0.04) mL volumetric pipet? Type your numeric…

A: Uncertainty: In chemistry it is used to indicate the true value that lies between two limits.

Q: Paregoric 15.0 mL Pectin 0.5 g Kaolin 20.0 g Ethanol 1.0 mL Purified water ad 100.0 mL Mix and make…

A: A solution can be defined as the mixture that consists of two components; solute and solvent. Here…

Q: What is an analytical balance?

A:

Q: Data of Candy Mass of candy: 6.1115g Concentration of NaOH (M): 0.09639 Volume of NaOH solution…

A: The acid-base titrations such as sodium hydroxide versus hydrochloric acid can be used to determine…

Q: Calcium ions contribute to the hardness of water.  a) Based on the Ksp experiment, describe a way to…

A: Minerals of ions makes water hardness, Calcium and magnesium ions are the major reason for the…

Q: Determination of metals in soil by AAS Soil Mass of Soil ppm (mg/L) Concentration of Cu in soil…

A: The concentration in ppm (mg/l) can be calculated as, Concentration in ppm = Mass in gramsVolume in…

Q: A solution containing 15 mmole of CaSO, is diluted to 250 mL. The number of milligrams of CasO4 2H;0…

A:

Q: True or False? Why? In ion chromatography a single column containing ion exchange resin allows…

A: Now a days ion exchange chromatograpy is one of the best tool used in various field of science for…

Q: In the laboratory, what would you use for the following? (a) To measure the temperature of water…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: A 2.00 L graduate cylinder contains 1.40 L of buffer solution. The density of the buffer solution is…

A: Recall the relation of density           densityd=massmvolumeV Here, densityd of buffer…

Q: Why is the zinc powder weighed roughly while CuSO4 solution is pipetted?

A: A hydrate is a substance that contains water or its constituent elements. Hydrate are any compound…

Q: Calculate the concentration in ppm of Cd in a 2.00 mL sample which has been shown to contain 16.4 μg…

A: Given :- mass of Cd in sample = 16.4 μg                Volume of sample = 2.00 mL…

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.