Discuss the appearance and use of each pipette.         a. Ostwald folin pipette         b.  Volumetric pipette         c. Mohr pipette

Q: Suppose a biochemist has 10 mL of a 1.0 M solution of a compound with two ionizable groups at a pH…

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Q: H₂O (g) + CO (g) = H₂ (g) + CO₂ (g) K = 0.036 If 0.564 M of H₂ and CO2 are introduced into a…

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Q: 3. Draw the complete molecular orbital diagram (energy diagram like you have seen in class) for the…

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Q: In a continuous fibre reinforced composite where the fibres are well aligned, the strength in the…

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Q: Now that you have the contribution from the X-19 isotope (2.715) and from the X-21 isotope (18.00),…

A: Given the contribution from the X-19 isotope = 2.715 amu contribution from the X-21 isotope = 18.00…

Q: Correctly classify the following reaction: CH3CH=CH2 + H₂CH3CH₂CH3 a) Elimination reaction b)…

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Q: Given Ca(OH1₂₂ CST = Ca2+ (99) + 2011 (99) k₁= 6.5×10-6 H₂2₂0111 = H+ (aq) + OH (99) K2=10x10-14…

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Q: Weak acid and the conjugate of that weak acid, can be the components of a buffer system.  True

A: Buffer solution is solution which resist pH change by addition of small amount of Strong Acid/Base.…

Q: What is the area in cm² of a sheet of paper that is 8.50 in x 11.0 in?

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Q: MeCN n-BuLi; Et₂C=O Me OH Xan CN Me

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Q: An atomic radius is about 100 pm. Convert the radius to inches. (1pm = 10°¹m)

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Q: What is the formula for the nitrite ion ? What is the name for CIO™ ? ion

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Q: Chemistry Of the bonds C-C, CC, and CC, the C-C bond is __________. A. strongest/shortest B.…

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Q: Based on the octet rule, which line-bond structures is/are correct? 1. 2. 3. 4. 5. HH H-C-C=C-H I H…

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Q: solution is prepared by dissolving 32.0 g urea, (NH2)2CO, molar mass = 60 g/mol), in 150.0 g water.…

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Q: Me. EtO₂C CO₂Et Me NaOEt EtO₂C Me

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Q: How many moles of nitrogen atoms are there in 1.64 x 1023 molecules of dinitrogen trichloride,…

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Q: Why are alcohols usually bad electrophiles? You must support your answer with data on the…

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Q: Consider the reaction: N₂(g) +202 (g) = N₂O4 (9) Write the equilibrium constant for this reaction in…

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Q: Calculate the volume, in milliliters, of a 0.520 M KOH solution that should be added to 4.000 g of…

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Q: How many atoms of hydrogen are in (7.5x10^-2) moles of hydrogen (H)?

A: The number of moles of hydrogen (H) = 7.5×10–2 mol

Q: each answer in terms of quantum numbers: (a) Tell how many orbitals there are in each of the…

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Q: X tetracyanoethylene (A) Dipole-dipole interactions SEG London dispersion forces -0=1 -3=1…

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Q: 6. Tell what type of orbitals (such as 1s, 3d, and so on) is described by each of the following sets…

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Q: Curved arrows are used to illustrate the flow of electrons. Follow the curved arrows and draw the…

A: Here we are required to draw the resonating structure of the given compound

Q: 4. Draw one viable structure of a molecule with formula C5H9N that contains each of the following (3…

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Q: Calculate the amount of heat needed to boil 156. g of ethanol (CH,CH,OH), beginning from a…

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Q: SINGLE AND DOUBLE REPLACEMENT REACTIONS 1. Find all the pairs of ions in the following list which…

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Q: Curved arrows are used to illustrate the flow of electrons. Using the provided resonance structures,…

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Q: Calculate the concentrations of acetic acid (pK₁ = 4.76) and sodium acetate necessary to prepare a…

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Q: The density of gasoline is 0.65 g/mL. What is the mass in pounds of 45.0 L (about 12 gal) of…

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Q: A 0.308 N oxalic acid (MW 90g/mole) contains 1.386 grms of the solute. O True False

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Q: 4. Consider a sample of gas at 393 K and 22 atm. (a) Calculate the molar volume V (L/mol) of the…

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Q: 1. Describe the preparation of a 4500ml solution of Nator 1500. Oppm starting from a solution of…

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Q: Some options Choose Correct option for the main hardening those in cement s. a) Trucall ciam…

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Q: 1. Can you name an organic compound using rules of nomenclature for inorganic compound? why or why…

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Q: Compound trans [Mn(en)2C12] [Mn(en) (H2O)4] Ca2[VC16] (NH4)2[FeC14] (NH4)3[FeC16] [Pd(NH3)4]…

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Q: If 43.3 mg of Al(OH)3 react with 14.6 mg of HCl, how much AlCl3 is formed?

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Q: 1. How can the water displacement method be used to measure the density of tan irregularly-shaped…

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Q: 3. The ratio of radiation's energy to it's frequency corresponds to what constant?

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Q: Lance obtains a silvery metallic unknown. He weighs the metal and finds that he has 60.55g. When he…

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Q: Q3. When the orgo students did the experiment, they weighed out 2.105 g of Salicylic acid  and mixed…

A: Answer: Molecular formula of Salicylic acid=C7H6O3 Molecular formula of Acetylsalicylic acid= C9H8O4…

Q: Consider the reaction: PC13 (9) + Cl₂(g) → PC15 (9) Write the equilibrium constant for this reaction…

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Q: rences to access important values if needed for this question. The reduction of nitric oxide with…

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Q: 5. Lance obtains a silvery metallic unknown. He weighs the metal and finds that he has 60.55g. When…

A: Given,The weight of metal = 60.55 gVolume of water in the graduated cylinder = 25.2 mLThe final…

Q: NOCICH ste 2. 140 OPSA

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