QUESTION 10 When tested on Day 1, CJ scored a 100 percent; on Day 7, he scored a 50 percent. If the effort and knowledge were consistent, the test would lack external consistency Otest-retest reliability O internal consistency O interrater reliability

Q: 9. Iron has an atomic number of 26 and has an electronic configuration 18² 28² 2p 38² 3p 48² 3d. How…

A:

Q: A flask that can withstand an internal pressure of 2500 torr, but no more, is filled with a gas at…

A: Given data is as follows: The final pressure of the flask P2 = 2500 torr The final temperature of…

Q: Number

A: Carbonic Anhydrase is used for the reduction of CO2 to Carbonic acid.

Q: A body-centered cubic unit cell has an edge length of 588 pm. What is the radius of the atoms…

A:

Q: 9. How many photons are absorbed by a single atom in order for an electron to move to a higher…

A: The no of photon absorbed is the integral multiple of hv . Where v is frequency of radiation .

Q: The following question is from my textbook practice questions. It is shown in the photo below.

A: In 1H NMR, we get separate signals for that each hydrogen which is in different electronic…

Q: Table 2 Mg²+ Li¹+ Nhật ● OH¹- CO3²- PO43-

A:

Q: Consider the reaction below to answer the following questions. CH3 CH3 H3C H,O НС— ҫ—он + H;C…

A:

Q: Calculate the pH of a 0.100 M solution of the weak acid HF. pKa of HF = 3.14. 18x105

A: Given concentration of acid solution = 0.100 M  pKa = 3.14

Q: A solution has [OH¯] = 4.0 × 10-. What is the value of [H*] for the solution?

A: Given :- [OH-] = 4.0 × 10-8  To calculate :- [H+]

Q: 1. The noble gas, neon, has three isotopes of masses, 22, 21, and 20. If the isotopes have the…

A: Average atomic mass calculation: (1) Consider the given information is as follows;…

Q: 3. Which of the following is a good buffer system? a. A solution that is 0.10 M NaCl and 0.10 M HCl…

A: Acidic Buffer solution definition: buffer solution is an aqueous solution consisting of a mixture of…

Q: Calculate the concentration of Ni(H₂O)62+ ions at equilibrium in the solution formed. 2.18 x 10 10 M

A:

Q: Mg ati

A: 1. Alkyl halide react with magnesium to give alkyl magnesium halide (Grignard reagent).

Q: The base protonation constant K of morpholine (C4H₂ONH) is 2.14 × 10. Calculate the pH of a 1.2 M…

A: Given,(i) Molarity of morpholine ( C4H8ONH ) = 1.2 MKb of C4H8ONH = 2.14 x 10-6 (ii)  Molarity of…

Q: Which of the following depicts the most likely mechanistic pathway for the nucleophilic acyl…

A:

Q: The heat of fusion AH, of diethyl ether ((CH3 ((CH3)₂(CH₂)2₂0) is 185.4 kJ/mol. Calculate the change…

A: When diethyl ether (C4H10O) is melted, the solid diethyl ether is converted to liquid state. As…

Q: 1. The label on a 300 ml stock bottle reads 30% alcohol by volume. What volume of alcohol does it…

A: Given:            Volume of Stock solution: 300ml             % of Alcohol by volume(Volume…

Q: CI Assume the partition coefficient for this compound is too high. Propose a structural modification…

A: The partition coefficient is ratio of molar concentrations of chemical in a non aqueous phase and…

Q: Acetylene and oxygen react to form carbon dioxide and water, like this: 2C₂H₂(g) +50₂(g) → 4CO₂(g) +…

A: According to Le Chatlier's principle, a system in equilibrium tends to remain in equilibrium and…

Q: 9) The temperature of a sample of N2 at 4.9701 atm is changed, causing a change in volume from…

A: Given  Initial Pressure (P1)        = 4.9701 atm  Initial Temperature (T1) = 654.67 K  initial…

Q: A sphere has a diameter (d) of 25 mm. Find the volumè (V) cf sphere in mL. 4 (For sphere: V =tr³ and…

A: we have to apply this volume formula and take r=12.5 mm

Q: Sodium hydroxide reacts with acetic acid to produce sodium acetate and water. It takes 25.0 ml of…

A:

Q: 2. Consider the reaction of A Products. Concentration unit is in terms of molarity and time is in…

A:

Q: Using the activity series (Figure below), determine which combination of reactants will react with…

A: The activity series helps in determination of occurrence of a reaction whether the following oxiding…

Q: Round each number as indicated  a) 8.3158 (3 SF) b) 25225 (3 SF)

A: General rules for the significant figures are: 1) All non-zero numbers are significant. 2) Zeros…

Q: Estimate AS for the following reactions: a. 2 C10H22 (1) +31 O2 (g) b. HCI (g) + NH3 (g) ---- NH4Cl…

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: Number 1

A: Since silver nitrate is completely soluble in water Hence as per the solubility reaction AgNO3…

Q: 2A gas that has a volume of 98 liters, a temperature of 45 °C and an unknown pressure has its volume…

A:

Q: If the actual yield of the reaction was 75% instead of 100%, h was over?

A: This is a multiparts question. According to guidelines in multiparts question We can solve only the…

Q: Calculate the concentration of Ag*, if the sparingly soluble salt Ag2CO3 is added to a 0.40 M N22CO3…

A: Given: The Ksp of Ag2CO3 = 8.10×10-12 We have to calculate the concentration of Ag+ if the sparingly…

Q: 1. Predict the major product for the reaction shown here. Draw the complete detailed mechanisn for…

A: There are many bases in organic chemistry. When bases are treated with carbonyl compounds, bases…