You measured the mass of three different volumes of unknown liquid. What was the total mass of the graduated cylinder and the unknown liquid for the three measurements? Choose the masses that are closest to the observed values. 75.000g,85.000g,95.300g 75.000g,86.100g,97.200g 10.000g,20.000g,30.000g 86.100g,97.200g,108.300g Mass of Graduated Cylinder and Liquid | Complete Measurement Guide 🔬 You measured…
What was the mass of the empty graduated cylinder? Choose the mass that is closest to the observed value. 75.000 g 105.000 g 65.000 g 85.000 g Determining the Mass of an Empty Graduated Cylinder | Full Lab Guide 🧪 Understanding the Mass of an Empty Graduated Cylinder: Full Scientific Breakdown In experimental sciences, particularly…
An alkyl tosylate Multiple Choice 2 points A dihalide in which the halogens are attached on adjacent carbons is called a dihalide Vicinal Geminal Vinylic Allylic Cis Multiple Choice 2 points Determine which compound will react with sodium in liquid ammonia to form trans – 3 – hexene. cis – 3 – hexene Answer 🧪…
Determiwn which compoudn will react with sodium in liquid ammonia to form trans 3 hexene Answer ✅ Detailed Explanation: Formation of trans-3-hexene using Sodium in Liquid Ammonia Goal: To produce trans-3-hexene via a dissolving metal reduction of an alkyne using sodium (Na) in liquid ammonia (NH3). 🔬 Reaction Overview: The dissolving metal reduction process involves…
Predict which of the following alkenes reacts the fastest with HCl . ACH3CH2CH2CH2CH=CH2 B-CH3CH2CH=CHCH2CH3 C-CH3CH2CH=CHCH2CH3 D(CH3)2C=CHCH2CH3 Fastest Reacting Alkene with HCl Question: Predict which of the following alkenes reacts the fastest with HCl: A. CH₃CH₂CH₂CH₂CH=CH₂ B. CH₃CH₂CH=CHCH₂CH₃ C. CH₃CH₂CH=CHCH₂CH₃ D. (CH₃)₂C=CHCH₂CH₃ Answer: 🔍 Understanding the Mechanism The addition of HCl to alkenes follows Markovnikov’s Rule,…
When performing fluorescence versus absorbance spectroscopy on a protein solution, what can we generally say about the relative concentrations of the solutions required for each technique? Group of answer choices fluorescence spectroscopy requires a more concentrated protein solution than absorbance spectroscopy absorbance spectroscopy requires a more concentrated protein solution than fluorescence spectroscopy both techniques require…
How will each of the following changes affect the rate of an enayme-catalyzed reaction whose optimum pH is 7.4 ? Select the single best answer for each part. Part 1 of 2 Decreasing the temperature from 42°C to 37°C rate will increste rate will be unaffected rete will decrease Part 2 of 2 Decreasing the…
Why do aspartic acid and glutamic acid have a net charge of 1 at low pH and -2 charge at high pH ? Select the single best answer. Both amino acids have two COOH groups. At low pH values, both are protonated, along with the -NH3 group. Ac high pH values, both are protonated, leading…
explain this observation using molecular orbitals MO Theory Explanation of O₂ Paramagnetism Question: Explain the observation that oxygen (O₂) is paramagnetic using Molecular Orbital Theory. Answer: 🔍 The Observation Experimental evidence shows that oxygen (O₂) is paramagnetic, meaning it is attracted to a magnetic field. This is unexpected when looking only at the Lewis structure…
Identify the sulfate ion. Multiple Choice SO- SO42- SO32- SO2- S2- Identify the Sulfate Ion Question: Select the single best answer. Identify the sulfate ion. SO− SO42− SO32− SO2− S2− Answer: ✅ Correct Answer: SO42− The correct formula for the sulfate ion is SO42−. This ion consists of one sulfur atom centrally bonded to four…