A student adds a small amount of phenolphthalein to an erlenmeyer flask, and it changes to pink when he adds the base, sodium hydroxide. What is phenolphthalein considered to be? a titrant an analyte an indicator O an isotitrate O a quotient

Q: Which of these is the product of brominating (E)-4-methyl-3-heptene? Check all that apply. OA.…

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Q: Determine the relative radius of the largest ion that can fit into the "hole" formed by four large…

A: Large ions are present at corners of the square so the void formed by them is square planar void.

Q: 1. Synthesize the corresponding alkyne from the given alkene. Show the steps (no need for the…

A: As per the guideline, since you have posted a question with multiple sub-parts, we have solved the…

Q: In titration of 100 ml 0.3 Mn2+ with 0.7 M EDTA (pH = 7), when 50 ml EDTA is added what is pMn²+?…

A: Given,  In titration of 100 ml 0.3 Mn2+ with 0.7 M EDTA (pH = 7), when 50 ml EDTA is added.  We have…

Q: The following can be used as carrier gas for GC except-* O Argon Oxygen O Helium

A: An inert gas that carries sample in Gas chromatography is called a carrier gas.

Q: Calculate the enthalpy of reaction for the equation using the bond energy values given. C₂H4+302 →…

A: When a bond is formed then energy is released and when it is broken then energy is released.

Q: What volume in L of a 0.724 M Nal solution contains 0.405 mol of Nal ?

A: Dimensional analysis method is used to calculate volume using Molarity and moles.

Q: Which of the characteristics below describes glycine? Check all that apply. MAIN H₂N. OH Glycine…

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Q: There are 0.0625 moles of methane available in the reaction initially... but, is all of the…

A: In the given experiment, the initial amount of methane is 0.0625 moles out of which 0.0313 moles…

Q: One chemical that is added to water during water treatment. How is it added to water and why?…

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Q: intermolecular forces must be broken in order to boil H2O? Pick all that apply. Dipole Forces…

A: Boiling point is depend on intermolecular interaction between molecules.

Q: Calculate the enthalpy of reaction for the equation using the bond energy values given. 2NH3 + 302 +…

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Q: 31 Me مفایده الكلورا CI 53 48 0 AICI3 group CI Acylat 54 - COH

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Q: Predict the order of reactivity (and justify your prediction) of the given monomers. Styrene,…

A: Order of reactivity -  depends on the ions forms in the given solutions before the reaction  Ionic…

Q: Select all the compounds that have an empirical formula of CH which has an empirical formula mass of…

A: From the given compounds, we have to find compounds with empirical formula CH

Q: Given that the actual initial rate recorded in experiment 3 is 5.0 x 10³ mol dm³ s¹, calculate the…

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Q: Electromagnetic radiation source for XPS * O Gamma ray O x-ray O UV-Visible O Infra red O Radiowave…

A: Answer of this question :-

Q: TRUE OR FALSE: A buffer can be made by mixing 0.10M HNO3 with 0.10M KNO3

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Q: What are the symmetry. elements of the following. ·Componds ? DOP PF3 C5 H5 Sq Fr CO ₂ Xe 4 Co (CN)…

A: The point group of a compound is determined from its symmetry elements.

Q: Calculate the enthalpy of reaction for the equation using the bond energy values given. HCCCH3 + H₂…

A: Given, H-C≡C-CH3 + H-H ➝ H2C=CH-CH3 Bond         bond energy (kJ/mol) C-H                      413…

Q: When limestone (solid CaCO3) is heated, it decomposes into lime (solid CaO) and carbon dioxide gas.…

A: This question is from chapter Chemical Equilibrium. We are asked to calculate the pressure…

Q: Some chemical reactants are listed in the table below. Complete the table by filling in the…

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Q: Regarding Fluoride experiment, determine which are is/true? A. Sodium ion is capable of reacting…

A: Solutions: Fluoride experiment

Q: A particle is immersed in a gas. What would happen with the gas pressure the particle experiences if…

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Q: If 3.5 cups have a mass of 632.0g what’s the density in grams per ml. 1 cup= .236 L

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Q: What kind of amine shoul be reacted with BSC produces a sulfonamide that is insoluble in NaOH?

A: Answer= ( secondary amine)

Q: At 350 °C and 101.325 kPa, the volume occupied by 48.00 mol of NH3(g) is a.bc × 10ª L. The values of…

A: From gas laws , we know  PV = nRT  Where P= pressure  V= Volume  N= number of moles of gas  R= gas…

Q: (SHOW CALCULATIONS) The density of tert-butanol is 0.775 g/mL at room temperature. What is the mass…

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Q: H₂N. D-Glutamine L-Glutamine D-Arginine L-Glutamic Acid L-Arginine D-Glutamic Acid NH IZ NH₂ OH

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Q: Which of the following is FALSE? a. D-altrose and D-talose have the same osazones. b. D-glucose…

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Q: Which of the following statements is CORRECT? a. Beta particles and gamma radiation penetrate into…

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Q: 12. Detergent molecules are phospholipidlike molecules with highly polar heads and nonpolar tails.…

A: We know that detergent molecules are phospholipids having a polar head and a non polar tail.

Q: M

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Q: HO. но!!!...... Но!.. OH ШIO HO НО НО. OH !!!!он

A: Here we have to differentiate the following given two compounds i.e carbohydrates by chemical test.

Q: A certain metal M forms a soluble sulfate salt M₂(SO4). Suppose the left half cell of a galvanic…

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Q: What volume of 0.35 mol/L strontium chloride is required to react with 133g of aluminum?

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Q: A certain metal M forms a soluble nitrate salt M M(NO3)₂. Suppose the left half cell of a galvanic…

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Q: Write the balanced chemical equations representing the following reactions. Identify the type of…

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Q: a statement about the scale of plastic production and how this has changed over time using simple…

A: Two questions based on introduction to polymer that is to be accomplished.

Q: Gamma radiation is used to treat certain types of tumors deep in the brain that cannot be accessed…

A: Gamma radiation is used to treat certain types of tumors deep in the brain which cannot be accessed…

Q: Suppose titration of 100.00 mL mixture of 0.0500 M in Br +0.08 M CI with 0.4000 M AgNO3. What is pAg…

A: Please find the below attachments.

Q: A 10 mL sample containing cyanide (CN-) is analyzed. It is mixed with 10 mL 1%(m/v) HCl to prevent…

A: 10ml sample containing CN- is analysed. It is mixed with 10ml 1% HCl. finally diluted to 25ml.

Q: 8b. Name and draw all the possible isomers for the complex anion Cr(NH3)(OH)₂C13-²

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Q: When performing a titration in the lab, which equipment is not used? 1. burette 2. pipette 3.…

A: Titration is the process of chemical analysis in which quantity of some constituent of sample is…

Q: Calculate the rate constant ( use 3 sig. figs and units) for the ozone decomposition reaction from…

A: The rate of reaction is the speed at which the reaction proceeds. It can be quoted as the rate of…

Q: Each molecular diagram represents an initial mixture of the plete reaction in each case? (Assume…

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Q: OCH3 N N(CH3)2 N. SO3H

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Q: what kind of test/reagent should be used to differentiate the two compounds in the photo? what will…

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Q: what kind of test/reagent should be used to differentiate the two compounds in the photo? what will…

A: Here we are required to distinguish ketone and aldehyde .

Q: 3. Determine the volume of hydrochloric acid needed to reach the equivalence point during the…

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