Chemistry concepts and calculations

What is the concentration of [H^+] in molars, millimolars, and micromolars for a

What is the concentration of [H^+] in molars, millimolars, and micromolars for a solution of pH 5? If you mix 10mL of a 0.1 M HCl solution with 8mL of a 0.2M NaOH solution, what w…

What is the concentration of a solution in parts per million if 20.0 g of Na_2 S

What is the concentration of a solution in parts per million if 20.0 g of Na_2 S is dissolved in 40.000 g of solution? The health of fish depends on the amount of oxygen dissolved…

What is the concentration of acetic acid in the 0.100M pH 5.000 buffered solutio

What is the concentration of acetic acid in the 0.100M pH 5.000 buffered solution? Note 1: Based on the notation you use, you may write that the acetic acid concentration as eithe…

What is the concentration of ammonia in a solution if 24.80 mL of a 0.1165 M sol

What is the concentration of ammonia in a solution if 24.80 mL of a 0.1165 M solution of HCl are needed to titrate a 100.0 mL sample of the solution? Collect and Organize In the t…

What is the concentration of formate ion in a solution that is 0.10 M formic aci

What is the concentration of formate ion in a solution that is 0.10 M formic acid and 0.20 M HCl? A soluton of the salt, ammonium formate. (CVH.CHO, s A solution of the salt, ammo…

What is the concentration of gold ion in a saturated solution of Aucl_3, if the

What is the concentration of gold ion in a saturated solution of Aucl_3, if the Ksp is 2.9 times 10^-23 at a given temperature? What pH is required to prevent cloudiness (the form…

What is the concentration of phosphate in the original lake water sample if the

What is the concentration of phosphate in the original lake water sample if the unknown lake water sample in the option had been diluted by taking 25.0 mL of lake water and diluti…

What is the concentration of the dye in a solution witha percent transmittance r

What is the concentration of the dye in a solution witha percent transmittance reading of 40.2% at 640 nm? Need help answering B and C of the following questions below. I included…

What is the concentration of the final solution when 50 mL of 2.0 M HNO_3, is ad

What is the concentration of the final solution when 50 mL of 2.0 M HNO_3, is added to 100 mL. of water? (A) 0.34 M (B) 0.50 M (c) 0.67 M (D) 1.0 M What is the molarity of 1000. m…

What is the conclusion about the selectivity on NaOCI? (If your results were inc

What is the conclusion about the selectivity on NaOCI? (If your results were inconclusive consult the IR posted on blackboard for further analysis and/or support). At the end of t…

What is the conclusion about the selectivity on NaOCI? (If your results were inc

What is the conclusion about the selectivity on NaOCI? (If your results were inconclusive consult the IR posted on blackboard for further analysis and/or support). At the end of t…

What is the configuration of the product yielded in the following reaction? Will

What is the configuration of the product yielded in the following reaction? Will the relative configuration of the product be cis or trans? A) (2R, 3R) B) (2S, 3S) C) (2R, 3S) D) …

What is the confirmatory test for ammonium ion, NH 4 + ? A white solid will prec

What is the confirmatory test for ammonium ion, NH4+? A white solid will precipitate. Production of ammonia gas, NH3, and blue litmus paper turning red because it is acidic. Produ…

What is the conjugate acid of CO_3^-2? CO_2^-2 HCO_3^- H_2CO_3 HCO_2^-2 none of

What is the conjugate acid of CO_3^-2? CO_2^-2 HCO_3^- H_2CO_3 HCO_2^-2 none of the above What is the pOH of an aqueous solution at 25.0 degree C that contains 3.98 times 10^-9 M …

What is the conjugate acid of HCO_3^-? co_3^2- H_3O^+ H_2CO_3 CO_2 in the acid-b

What is the conjugate acid of HCO_3^-? co_3^2- H_3O^+ H_2CO_3 CO_2 in the acid-base reaction between H_2CO_3 and NH_3, which of the following is a conjugate pair? H_3CO_3 and OH^-…

What is the conjugate acid of NH_3 ? NH_3 NH_2^+ NH_3^+ NH_4^+ NH_4 OH for a buf

What is the conjugate acid of NH_3 ? NH_3 NH_2^+ NH_3^+ NH_4^+ NH_4 OH for a buffer prepared by combining 0 370 mole of formic acid (HCOOH) and 0.230 mole of sodium format (NaCOOH…

What is the conjugate base of HSO^-_4 in the reaction below? CO^2-_3 + HSO^-_4 H

What is the conjugate base of HSO^-_4 in the reaction below? CO^2-_3 + HSO^-_4 HCO_3^- + SO^2-_4 CO^2-_3 SO_4^2- OH^- H_3O^+ HSO^-_4 Calculate the pH of a 0.021 M NaCN solution. […

What is the conjugate base of H_2PO^-_4 ion? a) H_3PO_4 b) H_2PO^-_4 HPO_4^-2- d

What is the conjugate base of H_2PO^-_4 ion? a) H_3PO_4 b) H_2PO^-_4 HPO_4^-2- d) PO_4^3- How many equivalence regions are observed in the titration of 0.00100M H_3PO_4 with stron…

What is the coordination number for each of the following complexes? [Fe(CN)_4(C

What is the coordination number for each of the following complexes? [Fe(CN)_4(CO)_2]^2- [Mg(EDTA))^2- [Cu(NH_3)_4]^2+ Na(Au(Cl)_2] Enter the coordination numbers, in the order th…

What is the coordination number of a sphere in s hexagonal closest packed struct

What is the coordination number of a sphere in s hexagonal closest packed structure? In a cubic dose packed (or face-centered cubic) structure? How do the coordination numbers in …

What is the correct IUPAC name for the molecule shown below? 2, 2, 3-trimethyl-6

What is the correct IUPAC name for the molecule shown below? 2, 2, 3-trimethyl-6-heptyne 2, 2, 3-(3-butynyl)butane 5, 6, 6-tirmethy 1-1-heptyne sec-butyl-tert-buty lacety lene 5-t…

What is the correct IUPAC name of the following compound? A. 1, 4-dibromo-3-nitr

What is the correct IUPAC name of the following compound? A. 1, 4-dibromo-3-nitrobenzene B. 1, 4-dibromo-2-nitrobenzene C. 2-nitro-1, 4-dibromobenzene D. 1-nitro-2, 5-dibromobenze…

What is the correct K_sp expression for PbBr_2? K_sp = [Pb^2+][Br_2^2] K_sp = [P

What is the correct K_sp expression for PbBr_2? K_sp = [Pb^2+][Br_2^2] K_sp = [Pb^2+][Br]^2 K_sp = [2Pb^2+][Br^-] K_sp = [Pb^2+]^2[Br^-] In whivch of the following solutions would…

What is the correct answer to G Dr. Caras was characterizing a cytochrome (an ir

What is the correct answer to G Dr. Caras was characterizing a cytochrome (an iron containing protein) from a new strain of bacteria. He obtained the following values in eight mea…

What is the correct complete ionic equation? Pb^2+ + 2NO^-_3 + Gamma rightarrow

What is the correct complete ionic equation? Pb^2+ + 2NO^-_3 + Gamma rightarrow PbI_2 + K^+ + NO3^- Pb^2+ + 2NO^-_3 + 2K^+ + 2 Gamma rightarrow Pb^2+ + 2I^- + 2K^+ + 2NO_3^- Pb^2+…

What is the correct description of this disaccharide? the alpha-anomer of two D-

What is the correct description of this disaccharide? the alpha-anomer of two D-glucose units joined by an alpha(1 right arrow4) linkage The alpha-anomer of two D-galactose units …

What is the correct electron configuration of chlorine? 1s^2 2s^2 2p^6 3s^2 3p^5

What is the correct electron configuration of chlorine? 1s^2 2s^2 2p^6 3s^2 3p^5 1s^2 2s^1 2p^6 3s^2 36p^6 1s^2 2s^2 2p^6 3s^1 3p^6 1s^2 2s^2 2p^6 3s^2 3p^6 If 92.8 grams of sodiu…

What is the correct electron dot diagram for sulfur? How many bonding pairs of e

What is the correct electron dot diagram for sulfur? How many bonding pairs of electrons total are in the covalent molecule SF_2? a) 0 b) 1 c) 2 d) 3 e) 4 How many lone pairs of e…

What is the correct form dar the ions present in ammonium phosphite 17 Predict t

What is the correct form dar the ions present in ammonium phosphite 17 Predict the formula of the compound formed when ions fal·um and nitrogen combine a) CaaNs c) CaNa d) CagNz e…

What is the correct form dar the ions present in ammonium phosphite 17 Predict t

What is the correct form dar the ions present in ammonium phosphite 17 Predict the formula of the compound formed when ions fal·um and nitrogen combine a) CaaNs c) CaNa d) CagNz e…

What is the correct formula of the salt formed in the neutralization reaction of

What is the correct formula of the salt formed in the neutralization reaction of hydrochloric acid with calcium hydroxide?                 CaCl                 CaCl2              …

What is the correct name for the following compound? 1-bromo-3-ethyl-4-isopropyl

What is the correct name for the following compound? 1-bromo-3-ethyl-4-isopropyl cyclohexane 5-bromo-1-ethyl-2-isopropyl cyclohexane 4-bromo-2-ethyl-1-isopropyl cyclohexane None o…

What is the correct order of decreasing ACIDITY of the following compounds? What

What is the correct order of decreasing ACIDITY of the following compounds? What is the correct order of decreasing BASICITY of the following compounds? Arrange the following alky…

What is the correct order of decreasing basicity of the following compounds? Whi

What is the correct order of decreasing basicity of the following compounds? Which one of the following does not react with AgNO3/ethanol? I need #2-#4 checked. I'm not sure if I …

What is the correct order of reagents to achieve the following synthesis? CH_3CH

What is the correct order of reagents to achieve the following synthesis? CH_3CH_2CH_2MgBr H_20 MgBr; H_20 HBr NBS, light, CCl_4 Zn(Hg)/HCL A B, C E, C E, D E, B, C Aromatic rings…

What is the correct order of stability for the following radical intermediates a

What is the correct order of stability for the following radical intermediates and how can you tell? ( more to less stable) at is the correct order of stability for the following …

What is the correct order of stability the following carbocations (more stable o

What is the correct order of stability the following carbocations (more stable of 2) a. 1 2 3 b. 1 3 2 d. 3 2 1 30.) Nucleophilic substitution and elimination reactions often comp…

What is the correct order to add the reagents in order to perform the following

What is the correct order to add the reagents in order to perform the following transformation? Explanation if possible please. A. 1) CH3CH2COCl/AlCl3, 2) NBS/hv B. 1) CH3COCl/AlC…

What is the correct symbol for an alpha particle? a. ^4_2 alpha b. ^4_1 alpha c.

What is the correct symbol for an alpha particle? a. ^4_2 alpha b. ^4_1 alpha c. ^2_4 alpha d. ^2_2 alpha e. ^0_0 alpha A homogeneous mixture of two or more substances is called _…

What is the correctorder of increasing the amount the freezing point reduction f

What is the correctorder of increasing the amount the freezing point reduction for a1.5 molal solution ofC12H22O11(s), MgCl2(s),KBr(s), AlI3(s)? C12H22O11(s) < KBr(s) < MgCl…

What is the cottcci Lewis structure for O_2? 10. The central atom in the chlorit

What is the cottcci Lewis structure for O_2? 10. The central atom in the chlorite anion. CIO_2 is surrounded by A) one bonding and three unshared pairs of electrons. B) two bondin…

What is the current way to authenticate users in a mobile/global fashion? In oth

What is the current way to authenticate users in a mobile/global fashion? In other words, assume a mobile application. And if there is a database server in the backend, how would …

What is the de Broglie wavelength in meters of a mosquito weighing 1.55mg and fl

What is the de Broglie wavelength in meters of a mosquito weighing 1.55mg and flying at 1.38 m/s ?

What is the de Broglie wavelength in meters of a mosquito weighing 1.55mg and fl

What is the de Broglie wavelength in meters of a mosquito weighing 1.55mg and flying at 1.38 m/s ?

What is the deBroglie wove length of an electron traveling of 99.00% of the spee

What is the deBroglie wove length of an electron traveling of 99.00% of the speed of light (mass of electron -9.1095 x 10^-31 kg? 1 0. The resolution limit of a microscope is roug…

What is the definition of K_a? Write out the equilibrium reaction of a generic a

What is the definition of K_a? Write out the equilibrium reaction of a generic acid HA, that defines the equilibrium constant K_a. Write the general expression you would use to ca…

What is the definition of K_b? Write out the equalibrium reaction of a generic b

What is the definition of K_b? Write out the equalibrium reaction of a generic base, B, that defines the equilibrium constant K_b. Write the general expression you would use to ca…

What is the definition of a Lewis acid? A. any molecule or ion that can form a n

What is the definition of a Lewis acid? A. any molecule or ion that can form a new covalent bond by accepting a pair of electrons to be shared. B. any molecule or ion that can for…

What is the definition of a how? Which of the following reaction is the slowest?

What is the definition of a how? Which of the following reaction is the slowest? a) CH_2CH_2CHBrCH_2 + OH b) CH_2CH_2CHBrCH_2 + H_2O c) CH_2CH_2CH_2CH_2Br + OH d) CH_2CH_2CH_2CH_2…

What is the definition of a reflux? What happens to the solvent during a reflux

What is the definition of a reflux? What happens to the solvent during a reflux experiment? What are three characteristics of a "good" solvent to use for refluxing? You are asked …