Magnesia contains Mg?* and 02-. Which of these ions is larger? Explain.

Q: QUESTION 1 What are the standard units of density for a solid | and a liquid

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Q: a solution that is 0.21 M in HCHO2 and 0 13 M in NaCHO2 (K.(HCHO2) = 1.8 × 10 4) Express your answer...

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Q: 7)ln molecules below, circle the group that showsthe most down fieldin both 'H and C NMR shift. CH3-...

A: 7. A molecule is given below CH3-CH2-CH2-O-CH(CH3)2-CH2(Cl)-CH=CH-CH3. We have to indicate the most ...

Q: An aqueous solution contains 0.413 M hydrocyanic acid. How many mL of 0.319 M potassium hydroxide wo...

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Q: The molar heats of fusion and vaporization of ethanol are 7.61 and 26.0 kJ/mol, respectively. Calcul...

A:   Given Data : Molar heats of fusion ethanol ,                  Q 1   = 7.61 kJ /mol Molar heat vapo...

Q: Computation. Compute for the amount of NaHCO3 that reacted with 9.4 g citric acid. 3 NaHCO3 (MW:84g/...

A: Given, 

Q: Consider the reaction: 2 CO(g) + O2(g) = 2 CO2(g) What will be the shift in equilibrium if some O2 i...

A: Given chemical Reaction equation :- 2 CO(g) + O2(g) ⇌ 2 CO2(g) Reactants => CO and O2 PProduct =&...

Q: If a system has 5.00 x 10° kcal of work done to it, and releases 5.00 x 10' kJ of heat into its surr...

A: Since you have posted multiple questions, we are entitled to answer the first only. 1) Given: Work d...

Q: Draw the hyperconjugation interaction that lessens the electrophilicity of the carbonyl on the struc...

A: The answer is as follows:  

Q: Aluminium metal reacts with sulphuric acid, H2SO4, to yield aluminium sulphate and hydrogen gas. Cal...

A: Aluminium metal reacts with sulphuric acid, H2SO4, to yield aluminium sulphate and hydrogen gas. The...

Q: Report predicted pKa, observed pKa and percent error from graph please if you could please explain :...

A: To report predicted pKa, observed pKa and percent error from the graph.

Q: EXPERIMENT: DETERMINING HEAT OF REACTION   Why do we want to have mostly ice and only a little wat...

A: We want to have mostly ice and only a little water (about 75% ice to 25% water) in the small beaker ...

Q: False For weak electrolytes, such as acetic acid, at very low concentrations the molar conductivity ...

A: The answer is as follows:  

Q: Which of the following equilibria would not be affected by pressure changes at constant temperature?...

A: Answer: Pressure of any system of given volume at constant temperature is always directly proportion...

Q: (b) Na20(s) + 2HI(g)→ 2Nal(s) + H20(1) AG (Na,0(s)) =-376.56 kJ/mol AG (HI(g)) = 1.30 kJ/mol f AG (H...

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Q: Which of the following is the best option for transferring 20 mL of a solution? A Use a 5ml serologi...

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

Q: Pilocarpine is a medication used in eye drop to manage angle closure glaucoma. It works by activatin...

A: Prodrugs are the inactive form of parent drug that do not show activity until gets metabolized chemi...

Q: wavelength

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Q: A systematic error A arises from the limitations on the ability to make a physical measurement. B is...

A: To define: Systematic error.  

Q: The molar conductivity at infinite dilution of H+ and NO3- ions at 298K are 349.8 Scm2mol-1 & 71.44 ...

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Q: Nitrogen (N,) gas and hydrogen (H,) gas react to form ammonia (NH,) gas. Suppose you have 9.0 mol of...

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Q: Suppose a 250. mL flask is filled with 0.50 mol of Br,, 0.10 mol of BROCI and 0.40 mol of BrCl. The ...

A: Calculate the equilibrium molarity of OCl2 ?

Q: The reaction of P4, a common elemental form of phosphorus, with Cl2 yields PCl5. Calculate the mass ...

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Q: Hepten-2-one is a ketone that also contains a C=C double bond between carbons 6 and 7. If this subst...

A: Alkene is reduced to give alkanes using Pt as a catalyst in presence of H2.   

Q: Consider this reaction: H,CO, (ag) – H,0 (aq) + CO, (ag) At a certain temperature it obeys this rate...

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Q: A systematic error (A can be discovered and corrected. (B Cannot be corrected nor detected arises fr...

A: The correct option is:  

Q: 1. How many MOLECULES of sulfur dioxide are present in 6.52 grams of this compound? molecules. 2. Ho...

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Q: How many significant figures does the difference 218.7201 – 218.63 contain?

A: For calculation of difference between two numbers, answer should be in least number of decimal numbe...

Q: Two different atoms have six protons each and the same mass. However, one has a negative charge whil...

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Q: Br 1. PPH3 2. n-butyllithium H. 3.

A: Wittig reaction is the reaction which is used to produce alkene by the help of carbonyl compound. Tr...

Q: Use the information below to answer the following question: C2H2(g)+ 5 O2lg)→ 4 CO2(g)+2 H2O(g) + 25...

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Q: When is the fugacity equal to the partial pressure of a gas? Fugacity is equal to partial pr...

A: Fugacity  is representing the actual behavior of real gases which distinctly different from the beha...

Q: In a reaction where a carboxylic ester and water react to produce an alcohol and a carboxylic acid a...

A:                           Answer  In a reaction where a carboxylic ester and water react to produce ...

Q: What is the appropriate size of volumetric flask to use if you want to dilute a 75.00 mL solution of...

A: It is observed that the concentration of the solution is inversely related with the dilution. From d...

Q: Create 3 different lewis structures that are not resonance structures for a compound. Note that the ...

A: The three Lewis structures fulfilling all the requirements are drawn in the following step. 

Q: The complete mechanism for a reaction is considered to occur in two steps, one of which is slow and ...

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Q: Determine the pH during the titration of 69.3 mL of 0.448 M hydrofluoric acid (Ka = 7.2x10-4) by 0.4...

A: Answer: In this question, we have to calculate the pH of three types of solutions in various steps a...

Q: What must be the minimum concentration of hypobromous acid in 1.00L buffer solution of a pH 8.02 hyp...

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Q: Determine the concentration of 7.13 g zinc nitrate (MW = 189.4 g/mol) dissolved in 200.0 mL distille...

A: The solution is as follows:    

Q: Which is more acidic CHECH or CH2-DCH2?

A: Given that : We have to identify which of the compound is more acidic :

Q: 1. Provide acceptable IUPAC names for the following compounds НО. LF Но. OCH3

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Q: When 17.8 grams of aluminum are reacted with 82 grams of chlorine, determine the theoretical yield (...

A: The balanced equation for the reaction of Aluminum (Al) and Chlorine (Cl2) is ,   2  Al  +   3 Cl2  ...

Q: Seoyeon needs to prepare a 250 mL solution of 0.1000 M Na2CO3. Which glassware should she use to pre...

A: All the instruments mentioned can be used to measure the volume of the solution. Although for titrat...

Q: Dtermine the formal charge of N and the number of lone pairs present.

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Q: What is the appropriate size of volumetric flask to use if you want to dilute a 75.00 mL solution of...

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Q: Nitrogen dioxide decomposes according to the reaction: 2 NO2(g)  2 NO(g) + O2(g); Kp = 4.48 x 10-13 ...

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Q: Which of the following CANNOT be found in a safety data sheet of a chemical? (A Hazard Identificatio...

A: Safety data sheets in the laboratory contains useful informations about the identification of hazard...

Q: - Write a paragraph about the difference between a chemical and physical change. Give examples of ea...

A: To differentiate: Chemical and physical changes.  

Q: Which of the following statements is/are incorrect?

A: 1. False  Hydroflouric acid is highly reactive and reacts very easily with glass. Thus, it should ne...

Q: 4. A solution of 2.5 x 104M NazS2O3 was used for the iodometric titration of an ozone- containing sa...

A: