Match each of the following with its correct answer The mole fraction of N, gas in the air is 0.781 at 760 torr. Calculate the partial pressure of N, in air Choose Choose 372 248 What is the molar heat of combustion of methanol CH,OH ( in kJ/mol), if the combustion of 1.0 g of methanol causes a temperature rise of 3.68 °C in a bomb calorimeter that has a heat capacity of 6.43 J/0C? 193 252.9 757 593.5 A balloon originally had a volume of 5.39L at 317 K and a pressure of 755 mmHg. To what temperature ( in K) must the balloon be cooled to reduce its volume to 4.00 L at a pressure of 620 mmHg? Choose

Q: Which of the ff. wavelengths may be used for turbidity measurements? 860 nm 500 nm 370 nm 240 nm

A: The wavelength applied in the turbidity measurement are usually in the near infrared range (700nm-…

Q: 13. A sample of 0.050 mol of NaOH is added to a solution containing 0.100 mol of acetic acid…

A: Two types of buffer solution are generally used ----- 1. Acidic buffer (made of weak acid and its…

Q: if a researcher includes a plateau of data points when fitting a linear trendline, what impact can…

A: Answer. Regression analysis is a technical measurement used to analyse linear regression. It…

Q: Chemistry CO-Me 10.

A: Reaction 1 : Trans esterification, dehydration of alcohols. C-alkylation.

Q: This 'H spectrum exhibits resonances at the following chemical shifts, and with these integrated…

A: On the basis of given spectra structure of compound is determined as

Q: standard deviation

A: If there is two results having standard deviation Sa and Sb. Therefore standard deviation indicate…

Q: Check photo for question

A: The details solution for this reaction is provided below in attach image.

Q: 10. What is the pll of a solution that is 0.40 M in HCN? The K, for HCN is 4.0x100 a. 0.40 b. 9.40…

A: Dissociation constant, Ka=4.0×10-10Concentration HCN = 0.4 M HCN is a weak acid. In solution it…

Q: Group

A: Dear student I have given answer to your question in the image format.

Q: Please could someone explain this with terminology relevant to GCSE

A: Ethane is a saturated hydrocarbon while ethene is unsaturated hydrocarbon.

Q: r of significant figure is

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

Q: Consider the colors found in the orange pen. Choose the Rf value closest to that of the spot that…

A: A question based on analytical separations that is to be accomplished.

Q: [H3O'] = 5.4x10-10 M Express your answer using two decimal places. ? reset pH =

A: Given details, H3O+ = 5.4 × 10-10M To calculate the pH.

Q: I understand the use of outside sources, LUOA lessons, or any other unapproved materials to answer…

A: The correct answer with explaination are given in the following step.

Q: Hint: consider doing the (1/T) ratio first (apply division/multiplication rules to determine and…

A: Temperature is a physical quantity that describes how hot or cold something is. It is the…

Q: Pharmacy department

A: Dear student I have given answer to your question in the image format.

Q: Please correct answer and don't use hend raiting

A: Step 1: Step 2: Step 3: Step 4:

Q: find the average deviation for each sets of measurments a) 21.8, 22, 21.5 b) 17.70, 17.70, 17.70 c)…

A: Average deviation can be calculated by using the following formula:where m(X) = average value of…

Q: Sstepr Og Meé Nhe fh

A:

Q: Construct a 96% confidence interval if a sampling distribution has a mean of 10, standard deviation…

A:

Q: In order to calibrate a pipet, you obtain the following data:   # of drops mL Trial 1 30 0.72…

A: Given- Trial number Number of drops mL Trial 1   30 0.72 Trial 2 30 0.77 Trial 3 30…

Q: In Figure 7 above, the 3 columns represent 3 different samples. Which column(s) represent pure…

A: Concept:  TLC gives us an idea about the presence of the compound in the column or test tube. Single…

Q: The following are the results for the % Cu of ore sample: 24.52%, 24.75%, 24.82%, 24.69%, 24.78%…

A:

Q: Calculate the standard deviation and % error using the following data table if the theoretical…

A:

Q: Detector response is corrected to take in account dilution before being plotted on the y-axis. O…

A: True

Q: 10. Heat flow is a directional quantity. Heat flows from a warmer body to a colder body. The SI unit…

A: Heat is a form of energy. Energy is the capacity to do work. The process which takes place on it's…

Q: In refractometer, how to solve the percentage (%) of sugar solution while the given refractometer…

A: Degree Brix (oBx) is used to measure the sweetness of an aqueous solution using a refractometer.…

Q: In some of these numbered processes, particle energy is gained, and in some it is lost. In which of…

A: To solve this problem we will use the given image of state of matter .

Q: IN QUALITATIVE ANALYSIS OF GROUP 3 CATIONS , COMPLETE THIS TABLE AND WRITE THE CHEMICAL REACTIONS…

A: In this question, we have to find out the correct answer of given problem by the help of QUALITATIVE…

Q: What is the retention factor (Rf) of the most polar and least polar spot present in the standard…

A: We have to give the retention factor (Rf) of the most polar and least polar spots present in the…

Q: An object having sp.gr of 0.75 floats in a liquid having sp.gr of 0.92. How many percent is the…

A: 81.52 % of total volume of body is submerged.

Q: LIMIT TEST (IMPURITIES - BIOLOGICAL) Instructions: Note the color change of each of the samples by…

A: A question based on general chemistry that is to be accomplished.

Q: hey the answer was incorrect can you please correct it? thanks

A: Atomic number of given as the number of protons in an atom.

Q: What is MRI? How does it work (5 sentences max)? And how much does it cost each time?

A:

Q: 28-31. Supply the missing value. n 1.55 1.65 1.70 1.80 ??? 1.62 Conc. 10% 15% 25% 35% 22% ???…

A: A question base on analytical process that is to be accomplished.

Q: Wrong answer

A: Equilibrium constant at constant pressure, Kp is equal to the product of the partial pressure of the…