Solve the equation for m. 2m² - 3m 4 = 0

Q: nutrition table lists apples with a potassium content of 4600 mg/pound. Assume an average apple is…

A: potassium content in apple = 4600 mg/pound mass of apple = 86.0 g potassium requirement = 3500 mg…

Q: At 25oC, the value of Kc in the following reaction is 82. I2(g) + Cl2(g) ⇌ 2 ICl(g) Place 1.5 mol…

A:

Q: Orbital energies in a one electron system (e.g. He*) depend on [Select all that apply.] On Ol me…

A: To determine: Orbital energies in one electron system (e.g. He+ ) depends on which quantum number

Q: Activity 2.2. Using noble gas cores, write the shorthand electron configuration of the following: a.…

A: Using noble gas cores, write the shorthand electron configuration of the following: a. Zn b. Ba c.…

Q: Find the solubility of lead(II) sulfate in 0.39 M Na2SO4 (aq). The solubility product of lead (II)…

A: Given , Solubility product of lead (II) sulfate 1.6×10-8

Q: 1.59 A graduated cylinder contains three liquids: water (density = 1.00 g/mL), corn syrup (density =…

A: Density (d) of any substance can be understood as how tightly its constituent particles are packed…

Q: 1. Balance the following equation: when solutions of sodium phosphate and barium nitrate are mixed,…

A:

Q: 4. Write the (ground state) electronic configuration for each of the following. a. antimony b. lead…

A: we have to determine the electron configuration of the given atoms and ions

Q: 4. Specify the type of intermolecular forces that exist when the following substances form an…

A: Given A. HOCH2CH2OH      (B)   SO2     (C).    NaCl

Q: 2- Give the common names for the following Alkenes: Ethene, Propene, 2-Methyl propene, and 2-Methyl,…

A: To give the common names for the following Alkenes: Ethene, Propene, 2-Methyl propene, and…

Q: Write dot-and-cross diagrams for the following compounds NaBr (sodium bromide) CO₂ (carbon dioxide)

A: According to the answering guidelines, I'm posting the solution for the first question. Kindly post…

Q: what's the difference between these two formula in structure? can you pls draw the lewis structure…

A: Compound having same molecular formula is knows as isomers but isomers are different types. Isomers…

Q: The heat of vaporization of water at 100°C is 40.66 kJ/mol. Calculate the quantity of heat that is…

A: When steam is condensed into water heat energy is released. The heat of vaporization of water at…

Q: A sample of gas has a volume of 2.50 L at 761 kPa and 75.0 °C. What is the pressure (in atm) of the…

A:

Q: Draw several molecules of methanamide and show the intermolecular hydrogen bonding that account for…

A: In this question we have to draw the structure of methanamide which shows H bonding between…

Q: WHAT IS MY OXIDATION NUMBER? Use the rules for assigning oxidation numbers to determine the…

A: we have to determine the oxidation states and fill the given blanks.

Q: 3. For each of the following compounds, categorize it as a strong, weak, or non-electrolyte. Give…

A: The substances which dissociate into ions (cations and anions) when they dissolve in polar solvent…

Q: ctrolyte, write out an ionic equation as NaCl(s)→ Na* (aq) + Cl(aq) f. CaCl₂ (soluble salt) strong…

A:

Q: Based on the data, complete the table. Species A B C Molar Mass (g/mol) 40.078 39.09 32.065 Density…

A: A physical quantity is a physical property of a material or system that can be quantified by…

Q: 395. mg of an unknown protein are dissolved in enough solvent to make 5.00 mL of solution. The…

A: The osmotic pressure maybe calculated as follows:

Q: 5. Predict the products of the neutralization reaction between Barium Hydroxide and Sulfuric Acid.…

A: 5) Barium hydroxide reacts with sulphuric acid to form Barium sulphate and water.

Q: Historically, naphthalene was used as the main ingredient in mothballs and is easily recognized by…

A:

Q: 4) Gold, which has a density of 19.32 g/cm3, is sold by the troy ounce (abbreviated oz t), which is…

A: According to the question, The mass of the gold is given by = 31.103 g The density of the gold is…

Q: When a-tocopherol reacts with radicals (such as peroxyl radicals ROO, oxygen radicals, HO), it forms…

A: The resonance structure of given compound can be explained as:

Q: Explain with the help of electronic effects, ‘generally haloalkenes undergo nucleophilic…

A: Aromatic and aliphatic compounds undergo substitution reactions differently. Depending on the…

Q: Given: molality = 0.54, pH = 2.43, Using the given equation, estimate the mean activity coefficient…

A:

Q: Calculate the mean and sample standard deviation for the following data: 90.0, 90.0, 85.0, 83.0,…

A: Mean = Σxi/n Standard deviation = √(Σxi2/n - (Σxi/n)2) n = total observation

Q: When a 4.456-g sample of margarine is burned with excess oxygen in a bomb calorimeter with a heat…

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Q: In the box below draw what you think gaseous He would look like (use a circle to represent each He…

A: Given:- 20 He atom.

Q: 4. Mechanism. Provide a complete, arrow-pushing mechanism for each of the following reaction 1. 2…

A:

Q: Nitric acid is a strong acid, and phosphoric acid is a weak acid. This means that... The PKA of…

A: We have been given a statement that nitric acid is a strong acid and phosphoric acid is a weak…

Q: C сн 3 CH3 CHF с TUPAC CH² CH3 name? -CH₂3

A:

Q: Starting with propyne and using any other required reagents, show how you would synthesize (2R,…

A: This question is based on conversion of a organic compound into another organic compound.

Q: Determine the enthalpy of vaporization, in kJ/g, of C₆H₁₄ if 14.5 kJ of heat is needed to vaporize…

A: Given: Enthalpy change when 38.05 g C₆H₁₄ vaporizes is 14.5 KJ Required: Enthalpy change when 1 g…

Q: lease show detailed mechanism how this transformation is achieved

A: Oxymercuration-demercuration is the electrophilic addition reaction to alkene. This addition takes…

Q: Example: Write the structural formulas for all the constitutional isomers that have the following…

A:

Q: 29) The major product formed in the following reaction is: Ph——Ph (a) HO₂S Ph H₂O, H₂SO4 HgSO4 Ph

A: alkyne is converted to carbonyl

Q: What is the ratio of ionized:unionized amine of glycine (pKa 9.60) in a solution at pH 8.0?

A: Amines are weak base. Amine like RNH2 and ionized amine like RNH3+. Mixture of amine and ionized…

Q: Given a container of oxygen gas with an initial volume of 280 L and a temperature of 30°C, calculate…

A: According to Charles Law at constant pressure volume of gas is directly proportional to the…

Q: A 1370 mL sample of a gas is stored at 21 °C and a pressure of 0.988 atm. The gas is expanded to…

A:

Q: Alyssa is trying to prepare 50 mL of MBP Purification Buffer which should have final concentration…

A: Given data is  Volume of buffer solu= 50 mL  concentration of  Tris (pH 7.4) = 20 mM  Concentration…

Q: 28. What will be the value of freezing point depression constant of cyclobutene having freezing…

A:

Q: Explain how you can use 1H-NMR spectroscopy to confirm the identity of the product. Provide one key…

A: Iodolactonization of pentenoic acid gives a iodolactone product, 5-(iodomethyl)dihydrofuran-2-one.

Q: Please find the temp at which the reaction becomes nonspontaneous!! The following reaction has these…

A: Given  ΔHrxn = -30.1 kJ/mol  ΔSrxn = -58.3 J.mol.K

Q: Ethylenediaminetetraacetic acid (EDTA) has a molecular weight of 292.24 grams/mol. How many grams of…

A: Molarity of EDTA solution = 0.3 M = 0.3 molL-1 Volume of solution = 100 ml = 0.1 L molar mass of…

Q: Which diene and dienophile would you employ in a synthesis of the following compound? معلم

A:

Q: Consider the reaction 2NH3(g) + 3N₂O(g) → 4N2 (g) + 3H₂O(g) for which AH° = − 879.5 kJ and AS° =…

A:

Q: Information: A student performs an experiment with three unknown liquids. The following measurements…

A: The mass per unit volume of a substance is known as the density of the substance. The density of a…

Q: 22. How many grams of each substance do you need to make the following solutions? a. 2 L of 6 M HCI…

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Q: Pu-238 undergoes alpha decay .show an equation

A: Given that Pu-238 undergoes alpha decay. The equation which represents the above nuclear reaction…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.