ے EI, الامممممما Mg Si

Q: 19. What type of polymer is the following, and what monomers are [५] (K=4,A=1) used for making it?

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Q: Calculate the solubility product of the following compound from the solubility data. (a) SrF2…

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Q: Chemical Formulas: Percent Composition 1. The nerve gas Sarin, which was released in a Tokyo subway…

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Q: write the (a) full and (b) condensed (noble gas) electron configurations of strontium ion.(c) which…

A: Since, Electronic configuration represent the electron present in orbital in which way. Arrangement…

Q: -CH3 H 1) which molecules rotates the same way and which doesnt? 2) which molecules have polarized…

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Q: A substance expands when it freezes. Which of the following is the most likely identity of the…

A: Generally, substances condense upon freezing rather than expanding and water is one of the few…

Q: 2 +OH- 2 OH (route IV)

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Q: 3. Why does condensation appear on the inside of the flask as is described in the methods during…

A: Condensation is the process by which water vapor convets into liquid water.

Q: The gas in a 250.0 mL piston experiences a change in pressure from 1.00 atm to 4.40 atm. What is the…

A: Boyle's law:  According to Boyle’s law, the absolute pressure exerted by a given mass of an ideal…

Q: A chemist makes 250. mL of calcium bromide (CaBr₂) working solution by adding distilled water to…

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Q: A chemist must dilute 22.0 mL of 45.9 µM aqueous magnesium fluoride (MgF₂) solution until the…

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Q: Calculate the Ksp for Li3PO4 if at equilibrium the concentration of PO43- ion is 3.30 x 10-3 M

A: We have to calculate the Ksp for Lithium phosphate

Q: The concentration of Sa* in a solution is determined by titration with a 0.1686 M Ce+ solution. The…

A: We will have to first calculate millimoles of Ce4+ present. From that we can calculate how many…

Q: 1. OsOy 2. NaHSO3, H₂0 ?

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Q: Macmillan Learning Classify the phase changes by the signs of the system's AH and A.S. AH = + and AS…

A: 1.Process which absorb heat is endothermic.  2.The process which release heat is exothermic.…

Q: Br H₂ C H -CH₂ 1) which molecules rotates the same way and which doesnt? 2) which molecules have…

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Q: calculate the solubility product constant for SrF2 given the molar concentration of saturated…

A: The dissociation of the SrF2  takes place as follows: SrF2  →  Sr2+  +  2F- The expression for the…

Q: With a calculation, explain why it is impossible to prepare an 18 M solution of ethanol in water.

A: Molarity (M) is a concentration term for a solution. The molarity of a solution is defined as the…

Q: 3. A food chemist determines the concentration of acetic acid in a sample of apple cider vinegar by…

A: 3. 20.78 mL of 1.002 M NaOH titrant is required to titrate 25.00 mL aliquot of vinegar sample .…

Q: Compound X has a molar mass of 104.01 g mol and the following composition: element nitrogen fluorine…

A: Molar mass = 104.01 g/mol Molecular Formula of X = ?

Q: For the following reaction: C3H8(g) + 3CO₂(g) + 4H₂O(1) 50₂(g) The change in gaseous moles, An = +…

A: The balanced reaction is given as C3H8(g)  + 5O2(g)⇔3CO2(g) + 4H2O(l) The number of moles of gaseous…

Q: For the following reaction: C3H8(g) + 3CO2(g) + 4H₂O(1) 50₂(g) The change in gaseous moles, An = +…

A: Le Chatelier's principle states that any change in the concentration, temperature, volume or…

Q: What product(s) are expected in the ethoxide-promoted β‑elimination reaction of…

A: Given reaction is elimination reaction. Ethoxide act as base. HCl is eliminated.

Q: Phosphorous acid, H3PO3(aq)), is a diprotic oxyacid that is an important compound in industry and…

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Q: How many milliliters of a 0.65 MM HCl solution do you need to obtain 0.0045 mol of HCl?

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Q: 7. Four blocks of water ice, each weighing 0.25 kg and at -5 °C, are added to 5.0 L of liquid…

A: Answer:- This question is answered by using the simple concept of calorimetry which states that heat…

Q: Name one colligative property and by an equation (label all variables) and 1-2 sentences the…

A: Colligative properties are those whose extent or amount or value depends on the number of components…

Q: A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains…

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Q: - 12 A virus has a mass of 9.0 × 10 mg and an oil tanker has a mass of 3.0 x 10 kg. Use this…

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Q: ing H H CH₂CH3 HMC-OH 1 CH3 NacN THE SH را ۱۱ ١٦٠١٢۱ CH3 CH3SH methanot + 0°C Snl 12⁰° I Good No I…

A: Sn2 is bimolecular nucleophilic substitution reaction.  Preference order for substrate is,…

Q: Given that the titration of 20.0 mL of 0.200 M HNO3 with 0.100 M NaOH occurs via the following…

A: The given reaction is between HNO3 and NaOH is- HNO3+NaOH→Na+ + NO3- + H2O HNO3 is a strong acid and…

Q: Question 8 A saturated solution of Li₂CO3 contains an equilibrium concentration of Li* ions of 0.368…

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Q: Write balanced net ionic equation for the following reaction. CaS(aq)+PbCl2(aq)→PbS(s) + CaCl2(aq)

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Q: A critical reaction in the production of energy to do work or drive chemical reactions in biological…

A: we have to calculate the free energy change for the given reaction

Q: Write balanced complete ionic equation for the following reaction. NaOH(aq)+ HCl(aq)→H2O(l)+…

A: Since, For write balanced net ionic equation, first balanced the equation then after change into…

Q: A railroad tank car carrying 1.5  103 L of concentrated sulfuric acid derails and spills its load.…

A: •Here from given volume and density we calculate mass of actual sulfuric acid present in it. •Than…

Q: A student requires 60.0 mL of a solution of potassium permanganate with concentration 2.45 M for an…

A: Molarity (M) is a concentration term for a solution. The molarity of a solution is defined as the…

Q: Above what temperature does the following reaction become non-spontaneous? 2 H₂S(g) + 3 O₂(g) → 2…

A: For a reaction to be spontaneous,its delta G must be negative.So let us try to calculate a…

Q: What mass (in g) of H₂O is produced from 2.00 L of H₂O2 at 0.99 atm and 21°C? The reaction is 2 H₂O2…

A: Volume of H2O2 = 2L Pressure = 0.99 atm Temperature = 21°C Mass of H2O produce = ?

Q: Cars are powered by lead-acid batteries and the electrochemical cell processes are described the…

A: we have to select the correct statement with respect to the given reaction

Q: HCIO is a weak acid (K₁ = 4.0 × 10-8) and so the salt NaCIO acts as a weak base. What is the pH of a…

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Q: 1- what if B = benzene, A = methanol, what are the dominant interactions between A and B, B and B…

A: (1) To identify the dominant interaction between A and A, B and B and A and B and their dependence…

Q: (a) Determine a ductile-to-brittle transition temperature as that temperature corresponding to the…

A: The graph between temperature and the impact energy is given below:   (a)The average of the maximum…

Q: 1. Spectrometry involves measurement of a) interactions between light and matter b) wave behavior of…

A: The correct options of the MCQ questions are given below-

Q: 1. Draw the major product of the following reaction. 2. Draw the major product of the following…

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Q: Rank the elements or compounds in the table below in decreasing order of their boiling points. That…

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Q: A brick has a mass of 4.0 kg and the Earth has a mass of 6.0 × 10²7 g. Use this information to…

A: 1mole brick = 6.022x1023 bricks   so to find the mass of 1mole brick, we just need to calculate the…

Q: 180 (a) 160 (b) (c) 140 120 OL 100 PPM 80 60 @ 40 20 0

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Q: ough of a monoprotic weak acid is dissolved in water to produce a 0.0112 M solution. The pH of the…

A: We have given pH and concentration and have to calculate Ka.

Q: Question 14 A mixture contains 0.0100 M of both Ba2+ ions and Pb2+ ions. If NaF is slowly added to…

A: The two reactions that can take place upon adding NaF are- Ba2++ 2NaF→BaF2 +2Na+Pb2++ 2NaF→PbF2…