The common logarithm of 2.68 is 0.428. Without using a calculator, determine the common logarithm of 2.68 ×10192 and of 2.68 × 10-289.

Q: . Find the molarity of the HNO3 solution and its absolute uncertainty.

A: As per the balanced chemical reaction, 2 mol of HNO3 reacts with 1 mol Na2CO3. Now, No of moles =…

Q: Which of the following is incorrect: General steps in qualitative analysis include: Method…

A: A multiple choice question based on analytical methods, which is to be accomplished.

Q: The molarity of a solution is determined by four separate titrations or replicates, where the…

A: Given observations are : 1). 0.4120  2). 0.4920  3). 0.3920  4). 0.4888  5). 0.4320  Standard error…

Q: Determine the coefficient for each ion of math] and IO3 for 0.00639M of Ba(103)2. yBa = Type your…

A: Ionic compounds are compounds made up of ions. These ions are atoms that gain or lose electrons,…

Q: 14. Complete the following. a. Make a graph of the following data points. Is the relationship…

A:

Q: Solve for x in 3x + 5 = -7x – 2q

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Q: What are the possible values of ml for each given value of l=2.

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Q: Calculate the value of n if idmax= 7.008×10-6A.

A: Polarographic technique is applied for qualitative and quantitative  analysis of reducible or…

Q: For the numbers 116.0, 97.9, 114.2, 106.8 and 108.3, find the range and 90% confidence interval for…

A:

Q: Using the Q test, decide whether the value 222 should be rejected from the set of results: 193, 222,…

A: Dixon's Q test or Q test, is used for identification and rejection of outliers from the given…

Q: how woud you dothis with out a scintific calculator    how do   you calcult  1x10^-14/1.2x10^11 by…

A: We have to do the given calculation.

Q: For question 5 could you find the best value and explain how you arrive to the best value please…

A: A question based on quantitative analysis, which is to be accomplished.

Q: how can i calculate part a

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

Q: For the numbers 116.0, 97.9, 114.2, 106.8 and 108.3, find the rangeb and 90% confidence interval for…

A:

Q: In analytical chemistry, what is a standard method? Include any sources you used to answer this…

A: Solution:  Definition of Standard method- In analytical chemistry for quantitative analysis,…

Q: The Ksp value for calcium sulfate [CaSO4] is 2.40 X 10-5 so if a professor made 1825 mL of a…

A: Ksp = [Ca2+][SO42-] if solubility is s mol/L then: Ksp = s2 Number of mol = Molarity x Volume in L…

Q: For this tme, calculate the averge solenoid Express your answer in webers

A: According to the question, we have a solenoid with length of l = 21.0 cm, Diameter = D = 2.20 cm and…

Q: For the calculation of sd, shouldn't it be (0.97-1.09) and so on... because 0.97 = x and 1.09 =…

A: The general equation to find the standard deviation is: ∑i=2n(Xi-μ)2NwhereXi = Experimental valuesμ…

Q: What is the importance of calibrating analytical balances?

A: Calibration of analytical balance is important.

Q: c- The precision of CaO %, 50.04, 48.67, 51.35 is

A:

Q: Use the exponent (EE) functionality on your calculator to do these calculations (a & c should be…

A: Significant figures of the answer will be two significant figures as the questions have .

Q: 0.080 M in HNO3 and 0.185 M in HC7H;O2 Express your answer to two decimal places. ? pH = %3D

A: The PH of mixture can be calculated as follows

Q: Determine the coefficient for each ion of math] and 10, for 0.00639M of Ba(1O,)2. yBa = Type your…

A: Given- Concentration of Ba(IO3)2 = 0.00639 M To find - Activity coefficient of IO3 Ba Formula - 1)…

Q: Determine the Ka from the following graph.   Group of answer choices 8.91x10-3 1.00x10-2…

A: Introduction: Titration is the process to find the unknown concentration of the solution using known…

Q: What are the possible values of ml for each given value of l=3.

A: Azimuthal quantum number represents the subshell in which electron is present. It given the shape of…

Q: After graphing E vs 1 n initial 2 you obtain the following best-fit linear line: y = -2.99x + 4.9.…

A: The RH slope of line is calculated first. The linear equation is as follows,

Q: What is a calibration plot or curve?

A:

Q: Calculate the pOH of a 0.05% HNO3 solution. (Densities: HNO3 = 1.51 g/cm; H20 = 1 %3D %3D g/cm3)…

A: The question is based on the concept of molarity.    it is defined as number of moles of solute…

Q: For the standard equation, shouldn't it be  (0.97-1.09) and so on... because (x-mean)

A: The general equation to find the standard deviation is: ∑i=2n(Xi-μ)2Nwhere Xi = Experimental valuesμ…

Q: Evaluate the sum. (1.613×10^4)+(9.803×10^3)

A: We have given that (1.613×104) + (9.803×103)

Q: 1. Calculate logarithms and antilogarithms. You should be able to do the first three without a…

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Q: What is value for x in the equation below? In(3.27x) = 0.72(0.39-0.79) Note: Logarithms and…

A: Solved stepwise in step 2.

Q: From the calibration curve (yellow table calibration data) calculate the concentration of sugar in…

A: Given:

Q: In this set of data 116.0, 97.9, 114.2, 106.8, 109.2, 116.0, and 108.3, find the mean, median, mode,…

A: Given,  The set of data: 116.0, 97.9, 114.2,106.8, 109.2, 116.0 and 108.3 The mean is:

Q: 4 Hume-Rothery

A: In this question we have to briefly state the 4 Hume- Rothery rules that give guidelines on the…

Q: 9.16×10-2 M HCIO, Express your answer to three decimal places. ? pH =

A: Determine pH of the given solution--

Q: I need answers for # 2-9 on this worksheet

A: Cations are postively charged species , so they are formed by metals by losing electrons.  Anions…

Q: 2Cr(s) + 3Cu2+(aq) ⟶ 2Cr3+(aq) + 3Cu(s) Calculate the Ecell

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Q: Priority of Operations: Do the following calculation in the order written without using your…

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

Q: please help me with no. 8, 9 and 1

A: The matching ester are as follows:

Q: Use the acidity model pH = −log[H+], where acidity (pH) is a measure of the hydrogen ion…

A: Introduction: the hydrogen ion concentration of a solution is expressed in terms of pH. it is…

Q: 1. What the difference between primary and secondary standard substances?

A: Since we only answer one question at a time, so we'll answer the first one. Please resubmit the…

Q: 2- 185.0 mL of .12 M C2H5NH2 with 285.0 mL of 0.21 M C2H5NH3CI Kb(C2H5NH2) = 5.6×10^-4 Express your…

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Q: Answer the questions by absolute reason

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Q: What is the fundamental difference between gravimetric and volumetric analysis? Use the editor to…

A: The difference between gravimetric and volumetric Analysis is given below ----

Q: A commercial cola brand states that the cola contains 45 mg phosphorus per 250 mL serving. Calculate…

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Q: Find the mean and median of each of the following sets of data. Determine the deviation from the…

A: The following set is given: 0.0110, 0.0104, 0.0105 Mean of the given data: Mean is the average of a…

Q: Rewrite 6 x 6 × 6 × 6 × 6 using an exponent.

A: The number that indicates the power to which another number is to be raised is known as exponanent.

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.