3. If you were asked to measure 25.0 mL of a liquid and to transfer it to another container, which of the following glassware could you use? Choose all that apply. Give reason(s). a) A 50-mL buret with smallest divisions of 0.1 ml b) A 50 mL beaker with smallest divisions of 10 mL c) A 50-mL volumetric flask d) A 50-ml graduated cylinder with smallest divisions of 1 ml e) A 25-ml pipet

Q: 2. Draw the line structure of the major product of the reaction below. Explain why this the major…

A: -> In presence of acid like H2SO4 first of all there occur protonation and after removel of water…

Q: Briefly explain differences between acidic , neutral and alkaline ph

A: Acids liberates H+ ions in the aqueous solution while Alkalis (or Bases) liberates OH- ions in the…

Q: A 15.08 g piece of Mg is placed in a container containing 1.0 L of 3.0 M HCI (aqueous). Calculate…

A:

Q: A certain gas obeys the van-der-Waals equation with a = 0.50 m6 Pa mol-2. Its volume is found to be…

A:

Q: 5. Consider the reaction, H₂ + 12 → 2HI. The equilibrium constant values have been determined for…

A: According to Van't Hoff equation ln(K2/K1) = (- deltaH0 /R) [1/T2-1/T1] ln (16*10-3 /3.2*10-3) =(-…

Q: 3. What are the number densities of U-235 and U-238 in 10.4 g/cc UO₂ fuel if the fuel is power…

A: Given: Density of Uranium oxide (UO2) =10.4 g cm-3 Fuel enrichment (ωi)                    = 3.4573…

Q: ОН PBr3

A:

Q: 1. Given the solid below, calculate the following: a. Volume b. Density if its mass is 104.72 g.…

A: The given solid is a Cuboid. The length of the solid(l)= 5.30 cm  The width of the solid(b) = 2.5 cm…

Q: Predict the product for the following reaction. 1. CH,CH₂CH₂MgBr/ether 2. H₂O

A:

Q: I am having trouble distinguishing between primary, secondary and tertiary amines. I read that…

A: The N-H stretching frequency of amines is observed in the region of 3400-3200 cm-1  in the IR…

Q: The following fictitious unbalanced REDOX reaction is made of some teachers initials and some…

A: Answer: Given reaction is a redox reaction and to balance it we will use ion-electron method.

Q: Shown below is the equilibrium between methylammonia and the methylammonium ion. H H3C-N-H H…

A: Given : pKa = 10.62  Ionization of methyl ammonia = 1/5  So, ionization of methyl ammonium = 4/5

Q: 10. Rank the following protons in the order of increasing pka. HB Me O A HB <HA <HD <Hc B HD <Hc<HB…

A: As we know, Higher the acidic strength, lower the value of pKa. Carboxylic acid hydrogen is more…

Q: 11. What was Rutherford's contribution to the atomic model? A. Electrons are not bound to the…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Determine whether the following example is either a systematic or random error: Eggs are sold by…

A: A question based on analytical process that is to be accomplished.

Q: The diameter of a red blood cell is 6×10−6m6×10−6m. How many centimeters is this

A: As we know,           1m = 100 cm = 102 cm.

Q: The figure below is a plot of vapor pressure versus temperature for dichlorodifluoromethane, CCl2…

A: Normal boiling point of any compound is that temperature at which the vapor pressure of compound…

Q: Substance X is known to exist at 1 atm in the solid, liquid, or vapor phase, depending on the…

A:

Q: Anwita is on a geology feild trip and finds a rock that contains 38% of the original potassium-40,…

A: Half life of potassium-40= 1.25×10^9 Initial amount of potassium -40 = 100 gm Final amount of…

Q: Liquid nitrogen has a density of 0.808 g/ml, and boils at 77 K. Researchers often purchase liquid…

A: To calculate the ratio, we would first calculate the volume of nitrogen gas in L after vaporization.…

Q: On a 16.5 ounce bag of potato chips, the manufacturer states that the single serving is one ounce,…

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Q: Answer questions a-c about the Bronsted acid-base reaction below using the identifying letters A-D…

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Q: ОН Na2Cr2O7/H2SO4/H2O

A:

Q: The rate of effusion of He gas through a porous barrier is observed to be 6.14 × 10-4 mol/h. Under…

A: Introduction Although the effusion phenomena had been recognized for a very long time, it wasn't…

Q: 16. 17. 18.

A: We have to name the given organic compounds.  Note: According to Q&amp;A guidelines of Bartleby, we…

Q: f. 1.00 mL of 0.175M NaOH diluted to 375 mL (M₁V1 = M2V2) g. 5.00 x 10-³ M Ba(OH)2 solution h. 2.055…

A: f) Given, Initially M1 = 0.175 M V1 = 1.00 mL Later (after dilution) M2 = ? V2 = 375 mL First we…

Q: The most abundant isotope of Hydrogen has a mass of 1 amu.  Therefore, the average atomic mass on…

A:

Q: Draw a molecular level picture which illustrates that what happens as the approaching atoms begin to…

A: We have to Draw a molecular level picture which illustrates that what happens as the approaching…

Q: 23. What is the charge (oxidation state) of the cation in Hg20 (mercurous oxide)? 24. What is the…

A: Mercurous oxide has formula Hg2O and it is an inorganic oxide containing zero overall charge.…

Q: ose a small sample of pure X is held at 177. °C and 4.5 atm. will be the state of the sample? ose…

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Q: Determine the mass in grams of 5.47 × 10²¹ atoms of barium. (The mass of one mole of barium is…

A: Molar mass of any element is the mass of Avogadro number of atoms. That is the weight of 6.022 × 10…

Q: The basicity constant kb for morphine (a weak) base is 7.4 x 107 at 25°C. What is the hydroxyl ion…

A:

Q: Which of the following is NOT a valid pair of resonance structures? [36] •[0-8] A) C) [ s • [0-9] D)

A:

Q: Why are spontaneous and non-spontaneous reactions often coupled?

A: Spontaneous reaction: the reaction which take place on its own without any initiation are…

Q: What weight of water must be added to 50lb of a 45% brine solution to yield a 20% solution? b. 55.1…

A: =&gt;Since you have posted multiple questions so we are answering first question(53). For remaining…

Q: Calculate the mean and 90% confidence interval for the data set. Report your answer with the correct…

A: Given values are 8.0720, 8.0580, 8.0710, 8.0750, 8.0600, 8.0550. we need to find the mean and 90%…

Q: Which of the compounds below is an example of a network solid? A) C25H25(S) B) NaCl(s) C) SiO₂ (s)…

A: from the given options we have to identify the network solid

Q: Which compound will be more likely to exist as a hydrated solid? O KCl O CuSO4

A: Some compound when comes in contact with water vapors present in the atmosphere absorbs them into…

Q: A student dissolves a Jefferson nickel to make 100.00 mL of solution in a volumetric flask. The…

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Q: A 0.693 mol sample of Ar gas is confined in a 17.1 liter container at 27.1 °C. If 0.693 mol of He…

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Q: Highest freezing point

A: Solution is made up of two up of two components: solvent and solute. Freezing point  is the…

Q: An atom has 13 protons, 12 neutrons, and 11 electrons. Is this atom positively charged, negatively…

A: Here we are required to find the charge over the atom.

Q: Density is an intensive physical property. Look-up the meaning of an intensive property of matter…

A: Intensive properties — Those properties of substance which doesn't depend on mass and volume of…

Q: c. 1.52g of HNO3 in 575 mL of solution. Be sure to convert to molarity. d. 1.50 x 10-³ M Sr(OH)2…

A: c). Molarity = (Number of moles /Volume of solution in Liters) Given 1.52 g of HNO3 Given mass of…

Q: Sketch an energy-level diagram for the conversion of reactants to products in an endothermic…

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Q: 1. Hg(OAc)2, EtOH 2. NaBH4, NaOH

A: Alkene on reaction with mercuric acetate followed by reaction with NaBH4 gives alcohol and the OH…

Q: Which of these two gases has the larger number of molecules? Flask A Flask B

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Q: 2. How many units of unsaturations doe C13H14Br2Cl2 have?

A:

Q: What type(s) of intermolecular forces are expected between NOBr molecules? ball & stick - + labels…

A: we have to determine the intermolecular forces present in NOBr molecule

Q: my molecule is: 3-ethyl-1-hexene Draw the line-angle structure (and explain how you are doing this!)…

A: Line-angle structure of  3-ethyl-1-hexene: Line-angle structures are drawn as follows, 1. Carbon…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.