What is the formula for the area of a circle?

Q: es a 0.20M aqueous so your answer as a perc

A:

Q: Of the following reactions below, which represents the second ionization energy of calcium? O Ca(g)…

A:

Q: 18. What carboxylic acid was used to make lithium butyrate? O 3-methylbutanoic acid acid…

A:

Q: The pressure of a sample of gas is measured at sea level with an open-end mercury manometer.…

A:

Q: xplain how rse of time

A: An antibiotic will be a type of antimicrobial substance active against bacteria. It is the most…

Q: OH 2,2- 2,2,3- 2- 4- 3,3- iso sec- di tert- tri cyclo iodo acid hex 3-

A:

Q: An electrolysis cell containing MSO4 solution is operated for 1.0 h at a constant current of 0.200…

A: Given,  An electrolysis of MSO4 solution for 1.0 h at a constant current of 0.200 A. If the current…

Q: 4. Which of the following compounds can form hydrogen bonds with water? ethanol ethane ethene more…

A:

Q: How many protons (P), neutrons (n) and electrons (e) are present in 18173Ta-3 ? a. 76 p 105 n 73 e…

A:

Q: Question 25 The correct order of increasing strength of adsorption is Alkanes >> Esters >> Ketones…

A: Mixture is formed by mixing different substances physically.

Q: What are the different methods of changing the electrochemical potential?

A: there is various methds of this. i can say the names,but if i try to explain each process this will…

Q: 4. Lactic acid is found in milk and is present in human muscle tissue during exertion. It has also…

A: Henderson-Hasselbach equation. this equation shows the relationship between pH of a solution, the…

Q: Using the text submission box below, for each of the following pairs, note which of the two is the…

A: Nucleophiles are the species that donate electrons to the electrophile to form a bond. The…

Q: CH3 CH3

A: -> When HI reacts with ether there is formation of alcohol and alkyl iodide .

Q: Stage 1: 3 Fe + 3 Br2  3 FeBr2 Stage 2: 3 FeBr2 + Br2  Fe3Br8   The reaction in the first stage…

A: For mass of FeBr2 we only need to do calculations in stage 1 because amount of Fe in reaction is…

Q: draw 2-cyclohexene-1-ol

A:

Q: 5. In the Dumas method for determining the molar mass of an unknown volatile liquid, a sample of a…

A: We have find out the molar mass of the unknown and   temperature be when the pressure is 1.20 atm…

Q: Which gas below would be traveling with the greatest velocity at room temperature? 1.O2 2.CH4 3.…

A:

Q: Write each question in scientific notation:   a. 4100000   4.1×1074.1×107 0.41×1060.41×106…

A: We are either given the whose number or in decimal form in each case and we have to convert them to…

Q: H₂C. H₂C CH3 Compound 1 Compound 3 CH3 CH3 Apply your understanding of intermolcular forces to…

A:

Q: true or false of these three potential leaving groups (-OH, -Br , and -OCH3) , -OH is the poorest.

A:

Q: An atomic orbital represents: O the region of electron density for a covalent bond O a fixed path…

A: Here we have to define atomic orbital.

Q: Question 1 (a) An unknown compound, X, has the molecular formula C9H8O4. A student used a back…

A: (a) Before solving this question, we need to know the following two unit conversions: 1 cm3 = 1 mL…

Q: 31. 9 CH3-C-NH-CH3 What is the correct IUPAC name for the compound above? O dimethylamide O…

A: For IUPAC naming of organic compound select the principle carbon chain i.e longest carbon chain and…

Q: 1.73 g of Ca(OH)2 was u 1.00 I of a saturated solu

A: Molarity is defined as number of moles of absolute dissolved per liter of solution.

Q: Discuss the fundamentals of fluorescence

A:

Q: Illinois Central College CHEMISTRY 130 Laboratory Section: Name SHOW YOUR WORK PRELAB: Exp.7…

A: Given,  The mass of CO2 = 22.0 g.  The total pressure of gas collected over water at 35 °C = 790…

Q: Calculate the boiling point of solution when 10 grams of glucose (C6H12O6) is dissolved in 100 g of…

A:

Q: Should the elemental symbol for lead be written as Pb or PB? What confusion could arise if the wrong…

A: Atom is made up of nucleus (proton and neutrons) and electrons are revolving around it.

Q: Draw structural formulas for an aldehyde or ketone and alkyl (or aryl) bromide that could be used in…

A:

Q: True or false SN1 substitution reactions involve a carbanion intermediate.

A:

Q: structure is cof indicated? degrees 109.5 degres 90 degrees O 180 degrees Question 39 Calcium…

A: Given: Minimum energy required to knock out the electron = 4.60 × 10-19 J. Longest wavelength of…

Q: Canvas Ā Question 50 The spheres below represent Li, Be, B, and F (not necessarily in that order).…

A: Atom is made up of protons , neutrons and electrons.Nucleus of an atom consist of protons and…

Q: The temperature of a 15-g sample of lead metal increases from 22 °C to 37 °C upon the addition of…

A: Specific heat capacity is amount of heat required to raise temperature of a substance by one degree…

Q: A 1.0347-g a chloride-containing sample was analyzed by precipitating 0.6244 grams of AgCl (MW =…

A: First of all we have to calculate molar mass of the sample by balancing the equivalents.

Q: Give the net ionic equation for the reaction (if any) that occurs when aqueous solutions of aluminum…

A: When aqueous solutions of aluminium Acetate and lithium nitrate treated with each other then…

Q: ) A buffer solution is prepared by combining 135 ml. 0.225 M NHs (ag) and 115 mi 0.105 M HCI (ag).…

A: #7:  NH3(aq) is a weak base and NH4+(aq) is its conjugate base.  Weak base, NH3(aq), along with its…

Q: 28. i -C-N- The functional group above is referred to as a(n) O amine amide O acid anhydride ester

A:

Q: What is the correct pairing of peptides shown with the - combination indicated on the Ramachandran…

A: The Ramachandran plot shows the statistical distribution of the combinations of the backbone…

Q: Describe how the adsorption process assists in the removal of hazardous gaseous from confined space.…

A: Adsorption is the surface dependent phenomenon in which one substance concentration is attach or get…

Q: Ration strength when 250 ml solution contains 750mg active ingredients.

A:

Q: Use the following theoretical equation A2B3 + 3 C2D --> A2D3 + 3 C2B Calculate the number of…

A:

Q: What mass of LiOH would need to be dissolved in water to make 300.0 mL of a solution with a pH of…

A: Given:  pH = 12.05  Volume of solution= 300 ml

Q: true or false osmium tetroxide is an oxidizing agent.

A: Osmium tetroxide is an oxidizing agent . This statement is true of false given below with…

Q: 7. Using the table below as a guide, construct a table for the following molecules. You can use a…

A: In the given question seven compounds are listed and various informations about them like shape,…

Q: 24. CH3-NH-CH3 The compound above would be classified as a primary secondary tertiary quaternary 25.…

A:

Q: -) A buffer solution is prepared by combining 135 mL 0.225 M NHs (ag) and 115 mi 0.105 M HCl (aq).…

A: Here a buffer solution is prepared by mixing 135 ml of 0.225M NH3 and 115 ml of 0.105M of NH4Cl. We…

Q: You were tasked to prepare 477 ml of 3.00 M HNO3. If you were provided a stock solution of 70.5%…

A: Given that -  Volume of HNO3 tasked = 477 mL  Molarity of HNO3 tasked = 3.00 M  Stock HNO3 Solution…

Q: 1. For the reaction: C(s) + CO2(g) →2CO(g) .Drive the relationship between Kp and Kec. d. (Kp=KcRT)…

A: there is relationship between different equilibrium constants.  Kc is the equilibrium constant in…

Q: What is the empirical formula for C4H10O2? O C₂H5O O CH,O O C₂H4O O CHO2 O CHO

A: Given that, C4H10O2 Change into empirical formula ?