STARTING AMOUNT X A strand of spider's silk has a diameter of 3.50 micrometers. How wide is the spider's silk in nanometers ?

Q: Calcium phosphate (Ca3(PO4)2) is a chemical that can be added during water treatment and the…

A: Mass of Ca3(PO4)2 = 37 g = mpercentage purity = 94 %Actual mass of Ca3(PO4)2 = M

Q: Give the formal charges for the labeled atom in the bisulfate ion, shown below. B :O: B A D- 0—s—o—H…

A:

Q: Predict the major product of the following reaction: 8 B₂ hv ? He

A: Alkanes when treated with bromine in the presence of light undergo free radical substitution…

Q: 6. Using acetylene as your only source of carbon atoms, propose a synthesis for hexyl butanoate…

A:

Q: Be sure to answer all parts. The following IUPAC name is incorrect. Explain why it is incorrect and…

A: The given compound is a hydrocarbon, alkane. The IUPAC name of an alkane can be written on the basis…

Q: Balance the following chemical reaction 3. For basic conditions Cu + NO3 → Cu+² + NO₂

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Q: sealed one liter reaction vessel was loaded with 0.245mol n2o and 0.574 mol o2. the system…

A: Volume of container = 1.0 L Initial moles of N2O = 0.245 mol initial moles of O2 = 0.574 mol…

Q: Decide whether each pair of elements in the table below will form an ioni space provided. element #1…

A: Genereally, an ionic bond is formed a metal and a non-metal with large electro-negativity…

Q: T = 23 The expression you should be evaluating for the number of moles (nn) is: n=PV/RT Where: P…

A: The temperature is T = 23 °C = (273+23) K = 296 K.The pressure is P = 21.1 mmHg =  atm.The universal…

Q: 2. A drug appears to follow first-order elimination kinetics. If the plasma concentration following…

A: 2) The given drug appears to have first-order elimination kinetics.Initial plasma concentration= 65…

Q: The reaction between aluminum and iron (Il) oxide is used in the welding process. If 120 g of Al are…

A: a) Balanced chemical equation for the reaction:The reaction between aluminum (Al) and iron (III)…

Q: Draw all four carbocation intermediates possible upon protonation of the diene below. Draw all…

A:

Q: For the reaction 21Br(g), → 1₂(g) + Br₂(g) Kc=3.57x10³ at 150°C. Suppose that 0.25M IBr in a flask…

A:

Q: Determine the average atomic mass of an element X with 2 isotopes A and B from the following data:…

A: The average atomic mass of an element is determined by using isotopes of that element. Here, the…

Q: n which of the following cases would recrystallization be favored over extraction when purifying a…

A: In chemistry, more preciously in analytical chemistry, Recrystallization is a kind of experimental…

Q: For the gas phase isomerization of dimethyl maleate, cis-CH3OOCCH=CHCOOCH3 → trans-CH3OOCCH=CHCOOCH3…

A: The Arrhenius equation shows the relation between the rate constant and temperature. where k = rate…

Q: Complete combustion of 4.70 g4.70 g of a hydrocarbon produced 15.1 g15.1 g of CO2CO2 and 5.15 g5.15…

A: Mass of hydrocarbon (CnHn) = 4.70 gMass of CO2 = 15.1 gMass of H2O = 5.15 g Hydrocarbons contain…

Q: 4. How many electrons would be transferred in the redox reaction below as balanced? 6 Cu(NO3)2(aq) +…

A: Redox reaction is defined as a reaction in which oxidation and reduction take place simultaneously.…

Q: The freezing point of water is 0.00 °C at 1 atmosphere. How many grams of cobalt(II) acetate (177.0…

A: mass of cobalt(II) acetate dissolved = ?molar mass of cobalt(II) acetate = 177.0 g/molmass of water…

Q: The energy associated in pka for the deprotonation of the following base is H

A: For the given reaction, determine the energy associated with the pKa.

Q: Consider the reaction CO(g) + Cl2(g) →COCl2(g) Using the standard thermodynamic data in the tables…

A:

Q: 5. Rank the following molecules by basicity. The most basic molecule is 1, while the least basic is…

A: The strength of a conjugate base depends on the strength of the acid from which it is producedStrong…

Q: 13. What is the AG, of Ce3+? The AG, of H+ is 0 kJ/mol and the AG, of H₂O() is -237.2 KJ/mol. Make…

A: Given Data:To determine:

Q: 211. What is the a. 0.0016 M b. 0.0032 M c. 0.032 M d. 0.016 M e. 0.16 M concentration of NaOH in a…

A: Given,pH of the solution = 11.5Volume of the solution = 2.0 L

Q: Choose all correct answers for the following. Percent Transmittance is defined as:   Question 6…

A: Transmittance is defined as the amount of light that is transmitted after passing through the…

Q: What to react phosphoric acid with to make ferlizer, chemical reaction and the science behind it. (…

A: Answer :---- Here, phosphoric acid (H3PO4) reacts with the ammonia (NH3) to produce the ammonium…

Q: Which statement about electrochemical equilibrium for a specific species of ion (e.g. Na+) is true?…

A: Given Statements:The size of the potential is inversely proportional to the size of the ion…

Q: Br2, CH3CH₂OH

A:

Q: (b) a 2p electron in O2, F¹, Na¹+, and Mg2+. Is the calculated Z* consistent with the relative sizes…

A: Zeff using slater rules --> 2P electrons in O2-,F-,Na+,Mg2+

Q: Use the graph below to answer the following questions. Assume one atom produces one count per…

A: Answer:For a nuclear decay reaction,Here:Also,

Q: A frequency of 2.4 × 10¹5 Hz is used on a magnesium surface with work function of 3.7 eV. Mass of…

A:

Q: 3. Draw the mechanism for the reactions or H₂O H₂SO4, HgSO4

A: The hydration of internal alkene yields ketone as the major product. The mechanism involves - Step…

Q: A certain reaction is first order in H₂ and first order in I₂. Use this information to complete the…

A: Givenorder of rate wr.r.t H2 = 1order of rate wr.r.t I2 = 1Given table

Q: NO₂ 1) Zn, HCI 2) CH3CH₂COCI

A: Zn and HCl act as reducing agent. It convert No2 to NH2

Q: Which orbitals overlap to form the bond indicated in Figure 4?* Osp³-sp³ Osp²-sp² Osp³-sp² sp³-sp…

A: Hybridization refers to mixing of valence orbitals of same atom and recasting them into equal number…

Q: 1) (CH3)2CHCH₂CH₂COCI, AICI3 (1eq) 2) H₂O+

A: Given an ethyl benzene and (CH3)2CHCH2CH2COCl and a Lewis acid AlCl3 .

Q: Cyclohexane derivatives exist primarily in the most stable of the available chair conformations.…

A: We will provide the stable conformation of the cyclohexane derivative.

Q: Figure :0: A E ما - 4 :0: چھ کھائیں B 0: F م م :: • 6 CH 3 :: OH „NH₂

A: In the field of science, delocalization of pi-electrons is a phenomenon where electrons are freely…

Q: Enter the structure corresponding to the IUPAC name. 3-methylhexane draw structure...

A: The steps for drawing the structure - Step 1- First draw the parent carbon chainStep 2- Then do the…

Q: Please draw structure using ChemDraw. Thank you!! 1. (S)-2,3-epoxypropan-1-ol with sodium cyanide…

A: nucle

Q: Of the bonds found in the following structure, which is most polar (think about electronegativity)?…

A: Polarity of the bond in the compound can be determined by calculating the electronegativity…

Q: Gallium is a metal which forms compounds with a wide variety of uses. Some of the applications of…

A: Gallium (Ga) consists of two isotopes.The isotopic mass of  = 70.9247050 amuThe abundance of  =…

Q: A multi-nutrient fertilizer contains several different nitrogen containing compounds. The fertilizer…

A: The mass percent of a substance is defined as the ratio of the mass of the substance and the mass of…

Q: In a neutralization reaction O a base and a salt react to form water and an acid O an acid and a…

A: Acid: Compound which gives H+ ion on dissociation, is called Acid. E.g. HClHCl (aq)…

Q: Derive the work of reversible isothermal compression of a van der Waals gas. How does it compare to…

A: The ideal gas law also called the natural gas equation, is the quation of state of a hypothetical…

Q: Classify the following pair of compounds. Select the single best answer. O O not isomers identical…

A: Isomers and Constitutional isomers are compounds which have same molecular formula but different…

Q: Which option gave the CORRECT Products Y and Z? Br CH₂Br CH₂ CH₂CH₂OH Y KMnO4 / K₂Cr₂O7 Heat NI

A: Alkyl bromide reacts with alcohol to form an ether by the Williamson ether synthesis. The reaction…

Q: Classify the carbon atoms in each compound as 1°, 2°, 3°, or 4°. Be sure to answer all parts. [1]…

A: Details

Q: . Nitric oxide reacts with chlorine gas according to the reaction: 2 NO(g) + Cl₂(g) = 2 NOCI(g) K₂ =…

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Q: Choose the best explanation for the proposed curved arrow mechanism for an electrophilic addition…

A: Ciured arrow mechanism is used to illustrate the flow of electrons. In the given question it has…

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.