Probability Scores 0.05 0 0.15 2 0.35 3 0.05 6 0.3 8 0.05 9 0.05 14 Find the expected value of the above random variable.   _________

Q: What mass of precipitate (in g) is formed when 20.5 mL of 0.700 M Zn(NO:)2 reacts with 17.5 mL of…

A:

Q: Calculate the difference between AH and AU when 1.0 mol Sn (gray) of density 5.75 g cm³ changes to…

A: Enthalpy is a thermodynamic system attribute that is defined as the sum of the system's internal…

Q: For the compound below please identify the position of equilibrium (which chair conformation is more…

A: Axial group due to 1,3-diaxial interaction decreases the stability of cyclohexane derivative. So,…

Q: 6. Analyze the experimentally-determined values of R for the sets of data for CHa and CO2. Complete…

A: Given: Volume V1 = 0.06752 L Pressure P1 = 15 atm Temperature T1 = 250 K Moles n1 = 0.1 moles Volume…

Q: This reaction, 2 NH3(g) N₂(g) + 3 H₂(g), is an exothermic reaction that is at equilibrium in a 20.00…

A: Le chatelier's principle=>According to this principle when a change is made on equilibrium in the…

Q: 5. Find x if (0.0010-x) 1.8 x 104

A: Answer: This is the sort of equation can often be seen in equilibrium situations, where we have to…

Q: Question 24 For the compound below please identify the position of equilibrium (which chair…

A: At equilibrium, when forward arrow more lengthen than backward arrow then product remain in major…

Q: 38. What is the difference between using a number as a subscript and using a number as a coefficient…

A: Answer-1 Subscript is used to indicate number of atoms. For example, in the formula CaCl2 subscript…

Q: Please match Curve 1, Curve 2, and Curve 3 to its corrects answer choices. There are four answer…

A: So the curves which will have initial pH more than the final pH will be of titration of a base. This…

Q: For the compound below please identify the position of equilibrium (which chair conformation is more…

A: Given is structure of (1R,2S)-1,2-dichlorocyclohexane.The more stable chair conformation is one in…

Q: raw curved arrows to show the movement of electrons in the step of the mechanism shown below.…

A: The curved arrow mechanism is a representation of a reaction in which reactant molecules convert…

Q: ased on the given data, what is the λmax of cobalt?   0.1M Cobalt 300 0.451 325 0.467 350 0.584…

A: Given : We have to tell the lambda max for cobalt.

Q: Given the following data, calculate the 95% confidence interval. 0.452    0.453    0.448    0.456…

A: Given ,  Average = 0.4534  Standard deviation = 0.003847

Q: Mercury analysis results performed on a drinking water sample are given in the table below. Analysis…

A: The average of the given data, x = 54.1+55.5+63.8+54.4+55.8+57.96= 56.9 The value of average with 90…

Q: 37. A student recorded the following data for the alcohol content of a blood sample: % C2H5OH:…

A: The percent of alcohol content in a sample of blood is 0.084, 0.068 and 0.079.

Q: Item 9: Question Which is not a characteristic of a primary standard? It is hygroscopic. O It is…

A: It is hygroscopic is not a property of a standard.

Q: 10. When sulfur dioxide gas reacts with oxygen gas, sulfur trioxide gas forms. If 3.5 mol of sulfur…

A:

Q: 3 g of a hydrocarbon fuel is burned in a bomb calorimeter that contains 200 grams of water initially…

A:

Q: "Precision" is the ___________ of a measurement a. probability b. repeatability c. variability…

A: Precision:The closeness of two or more calculated measurements regardless of the accuracy of those…

Q: A.) Write the equation for the following nuclear reactions: 1.) Beta emission by 87 Rb 2.) Positron…

A: Since you are asked for multiple sub-parts, we are entitled to solve first three questions.

Q: Which of the following would be a correct interpretation of a 99% confidence interval such as…

A: To determine the critical values for the confidence interval for the standard deviation from the…

Q: The real gases do not follow the ideal gas law of PV = nRT, where P is the pressure, V is the…

A: The ideal gas law is PV = nRT P = pressure V = Volume n = no. of moles R = universal gas constant  T…

Q: Weight of coin 1 (g) 11.4286 Weight of coin 2 (g) 11.4633 Weight of coin 3 (g)…

A: Solution -

Q: For the compound below please choose the correct set of chair and flipped chair conformations: A 0 D…

A: The cyclohexyl ring goes into rapid inversion which is also called topomerism, ring reversal or…

Q: Calculate the 95% confidence interval for these set of data: 3.2, 3.3, 3.4, 3.3, 3.4 and 3.5 ppm

A:

Q: In a particular trial, a student got a value for R of 0.085. Calculate the percent deviation of this…

A: Percent deviation is given by: % deviation=Rexperimental-RacceptedRaccepted×100            ......…

Q: VAN der WAALS forces ARe WEAK, short-rANGE 9. How ARe vVAN der WAALS forces different electrostatic…

A: An electric monopole is a single charge while a dipole have a two  positive charge closely spaced to…

Q: 7. During reactions, the element Na gives up one of its electrons to become the cation, Na+. Which…

A: Given,  Na+

Q: Kindly answer numbers 5, 10 and 19

A: Names and chemical formula of the given compounds.

Q: Student Discipline Problems The data for a random sample of 32 months for the number of discipline…

A:

Q: Calculate the solubility of BaCrO, in water at 25 °C. You'll find K, data in the ALEKS Data tab. sp…

A: Given-> BaCrO4(Ksp) = 1.17 × 10-10

Q: Identify how many C (CARBON) atoms have sp³ hybridization for the compound below: :0: N: A B 5…

A:

Q: A. Determination of the Freezing Point of Cyclohexane. N/A 1. Mass of test tube, beaker and…

A:

Q: Calculate the mean and 90% confidence interval for the data set. Sample Value 8.0626 8.0650 3 8.0583…

A:

Q: Calculate the value required.

A: We have given that  (9.52×104) (2.77×10-5)(1.39×107 ) (5.83×102 )  = ?