3. Find the density of air at 24°C and 2.026 x 10^5 Pa. One mole of air is assumed to be 79% nitrogen (Mnitrogen = 28.0 g) and 21% oxygen (Moxygen = 32.0 g)

Q: Match each structure to its mass spectrum.

A: a.

Q: Fill in the missing parts of the table below: pH POH [H3O*] [OH} 2.93 1.88 5.23 x 10-3 9.64 x 10 10…

A:

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

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A: Formula to calculate density :    Density= mass/Volume

Q: 100 73 a. A 80 60 40 57 20 uli 90 100 10 20 30 40 50 60 70 80 miz 100 100 b. 45 59 C. В C 80 80 60…

A:

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A: It is the type 1 borosilicate glass. It is highly resistant due to presence of boric oxide and so…

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A: The water holding capacity of particles is important to determine in the field of agriculture as…

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A: Hard water is one that does not forms lather with soap. It contains soluble salts of Ca2+ and Mg2+.

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A: Ammonia reacts with oxygen to form nitrogen dioxide and water. The equation for the balanced…

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A: From the reaction it is clear that: one mole CaC2 reacts with 2 moles H2O to give one mole…

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A: a. Analyzing mass spectrum for figure (a)

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A: Density can be calculated by using the formula given below as; Density=MassVolume…

Q: STANDARDIZE THE Nas:Os.SH20 WITH KIOs. Weight of KIO, = 0.5325 g V of KIO, =250 ml N KIO, V KIOL mL…

A: IO3-(aq) reacts with S2O32-(aq) according to the reaction below: IO3-(aq) + 6S2O32-(aq) + 6H+(aq) →…

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…

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A: Correct answer is (2.) The sample is completely mixed up. Homogenous mixture has uniform mixture and…

Q: Pb2+(aq) + 2 e → Pb(s) Br2(0) + 2 e* → 2 Br(aq) E° = -0.13 V E° = +1.07 V

A: Given data are as follows:

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…

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A:

Q: The combustion of ammonia in the presence of excess oxygen yields NO2 and H2O:…

A:

Q: How can you prepare 500 ml of 0.1M HCI, if the percentage is 35%, and density = 1.18g/ml,…

A: Mass percentage or percentage by weight is one of the concentration terms that indicates the mass of…

Q: How many grams of Mn3O4 can be obtained from 1.00 g MnO2? b. how many ounces of Mn3O4 can be…

A: (a) The third sub-part seems to be incomplete, please send the complete data.   3MnO2 --à Mn3O4 + O2…

Q: Number of Drops Added 0 10 20 30 40 50 60 70 80 90 100 EXPERIMEN DATA COLLECTION AND GRAPHING…

A: We are given data for the mass of water, soap water, and 1% NaCl solution for the number of drops…

Q: If ethanol (S.G. = 0.790) were used rather than water in measuring the density of the irregular…

A: Density measures the mass of any given substance per unit volume of that substance. Mathematically,…

Q: How many kg does a 433 mg sample contain?(1000mg = 1g and 1000g = 1kg %3D %3D O 4.33 x 10-4 kg O…

A: As we know that about the following convrsons: 1000 mg= 1 g 1000 g= 1 kg So, based upon that  we…

Q: Question 4 Convert 81.9x10-6 Matm to psi. Give your answer in scientific notation (e. g. 1.23E4…

A:

Q: You have a stock solution of 150.0±0.3 mg SO²/mL that has been certified by the manufacturer. You…

A:

Q: 13: C₂H₁1C1 100 4888 8.0 5H 7.5 7.0 6.5 6.0 PPM. 2508 se ceoT 2H 134.51 $290.54 2H 2H 4.0 3.8 3.6…

A:

Q: Write a step-by-step procedure for this serial dilution. The stock concentration of the blue dye…

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Q: Which of the following is not a feature of carrier gas used in gas chromatography? a.It should be…

A: The features of carrier gas used in gas chromatography are - - > 1 -It should be cheap and easily…

Q: 50.0 ml of air were found to weigh 0.058 grams. The ratio of mass, volume of the air (in grams per…

A: Given: Volume of air = 50.0 mL Mass of air = 0.058 g

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A: Moisture content is the amount of water present in a sample. Gravimetric analysis gives a…

Q: Using the conversions above calculate : 1.How much N and K are in a 25 kg bag of 12-22-18?  2. How…

A: Fertiliser label indicates the percentage by weight of N, P as P2O5 and K as K2O.  Fertiliser label…

Q: Calculate the answer, in correct significant figures, of the expression below antilog(2.580) +…

A: Calculate the answer in correct significant digit----

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A: A plastic weigh boat or weighing paper may be damaged by a very hot sample. Usinh hot object…

Q: A student must prepare 7.00 L of 0.100 M Na2CO3 (106 g/mol). Which is the best procedure for…

A: Given that: 7 L of 0.1 M Na2CO3.  Now, 7 L of 0.1 M Na2CO3 =  7 L x 0.1 mol/L…

Q: MCQ 30: Polystyrene drinking cup can act like the apparatus of A. calorimeter B. spectrometer C.…

A: Styrene monomers are used to make polystyrene chains. Polystyrene is a low-cost, hard material that…

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A: The given statements are, A) A dispersing agent such as Na-hexametaphosphate is needed prior to soil…

Q: A bottle of fluoride rinse has a volume of 500 mL. Which of the following equivalences is incorrect?…

A: 1 mL = 1cm3 = 10-6 m3 = 10-3L

Q: 1. Prepare a 2 M NaCl soln; 1000 ml final volume; MW = 58.5 grams

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

Q: The percentage of an additive in gasoline was measured six times with the following results: 0.13;…

A: The expression for the confidence interval is shown below: Confidence interval =μ±t×σN where; μ =…

Q: 10: C4H,NO 100 08 60 48 20 8-4 4000 1.0 3500 4H 3335.35 3.5 2947.61 2851.15 3000 2752.77 4H 3.0 2500…

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Q: 2. As the director of a research laboratory you are paid to decide if there is a significant…

A: Given: Hence we have to find out whether there is any difference between two sets of data or not .…

Q: 0 30 5060 70 3600 UALA Weight percent tungsten 90 80 100 3422°C 3400 - 3200 3000 2800 2665 C 2670 C…

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

A:

Q: What will happen to the sample size if the percentage error becomes lower e.g. 5% instead of 10%?…

A: A question based on tools in analytical chemistry that is to be accomplished.

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A: Ethanol is an organic compound containing hydroxyl group attached to carbon atom.It is also known as…

Q: %Lysis СОMP 250 COMP 100 СOMP 20 n=1 87.77 81.73 65.8 n=2 81.71 50.45 63.7 n=3 86.64 55.38 59.4 n=4…

A: The solution of the question is given below:

Q: 2 NOCI(g) → 2 NO(g) +C12(g) AH° =+75.56 kJ 2 NO(g) + 02(g) → 2 NO2(g) AH° =-113.05 kJ 2 NO2(g) →…

A:

Q: gravity filtration

A: Gravity filtration – Gravity filtration is a method in which most of the work is dependent on…

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

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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.