A piece of unknown metal has a mass of 217 g. The metal absorbs 1.43 KJ of heat, its temperature increases from 20.5 °C to 35.1 °C. Determine the specific heat of this metal, and predict its identity.

Q: H₂O B-2 FORMULA EQUATION: MgCO3 (s) + H₂SO4 (aq) 1) OBSERVATIONS: What two things did you see happen…

A: Magnesium carbonate reacts with dilute Sulphuric acid to yield Magnesium sulphate , water and Carbon…

Q: 5. Show the conjugate acid of each species. Which conjugate acid is the strongest. NH₂ d) CH₂C=C: b)…

A:

Q: Draw a three-dimensional line structure for the following compound (2R,5S)-5-amino-2-hydroxyhexanal…

A: The three dimensional line structure of the given compound is drawn below.  The enantiomer of this…

Q: s ∆G is greater than ∆G° for the reaction NH4NO3(s) → N2O(g) + 2 H2O(l) ( effective pressure of…

A: The given reaction is  NH4NO3(s) → N2O(g) + 2 H2O(l) Given data effective pressure of N2O(g) = 2 atm…

Q: = O ELECTRONIC STRUCTURE AND CHEMICAL BONDING Identifying carbon hybridization in simple organic…

A: Hybridization of carbon (C) in hydrocarbons: • Alkane -C-C- in this case all bonds are single and…

Q: For the analysis of trace metals it is necessary to prepare solutions of very low concentrations…

A: The volume of a final solution is determined by the dilution equation. It is given as: M1V1=M2V2…

Q: Starting with the following equation, Fe₃O₄(s) + CO(g) → Fe(l) + CO₂(g) calculate the mass in grams…

A: According to given question,

Q: 3. Fill in the following table: Solution Distilled water Apple juice White vinegar Cola Coffee Dish…

A:

Q: Do we need 405 J of work done on the system so its volume changes from 2.0 L to 6.0 L against a…

A: Work done on the system or by the system can be calculated on considering change in volume of gas.

Q: You Answered A sample of Cu has an original mass of 57.3 mg, and after 24.0 hours the sample mass is…

A:

Q: Draw resonance structures for CO32-, showing the delocalization of charge using curved arrows.

A: we have to draw the resonance structures of CO32-

Q: Determine the formula for each compound or element. calcium chlorate: Ca(CIO3)₂ calcium chloride:…

A: The molecular formula of a compound is the representation of elements in proportionate amounts in…

Q: 3. Arrange the following alcohols in terms of increasing acidity beginning with the least acidic: FF…

A:

Q: Step 1: How many moles of NaOH are present in 19.0 ml. of 0.140 M NaOH? moles of NaOH: mol

A: Molarity = Moles of solute/ Volume of solution(L)

Q: energy required to remove the second electron from a gaseous lithium in the gound state is 1.212 x…

A: Ionisation energy: The energy required to remove an electron from an isolated gaseous atom in its…

Q: 4. Arrange the following phenols in terms of increasing acidity beginning with the least acidic: ОН…

A: Phenol is acidic in nature as it can easily release H+ ion. After loss of H+ ion, there is formation…

Q: OH бо C3H60 CH3COOH NaClO

A: Here main reagent is NaClO in Acetic acid. C3H6O is acetone  which is used as solvent for this…

Q: A solution is made from 1.5×10−3 M in Zn(NO3)2 and 0.130 M in NH3.   a. After the solution reaches…

A:

Q: Complete the following table. Mass of Sample 4.73 g C6H6 9 9 Submit Answer Moles of Sample 0.220 mol…

A: Given,4.73 g C6H60.220 mol H2O2.74 × 1022 molecules CO2Required,                  Mass of Sample,…

Q: N2O4(g)⇌2NO2(g) Kp=0.140 (at 298 K) Calculate Kc

A:

Q: What is the pH of a 0.146 M aqueous solution of sodium fluoride, NaF? (Ka for HF = 7.2x10-4)

A:

Q: How would you improve the quality of an NMR spectrum?

A: NMR spectrum provides information about the structure of molecule. The chemical shift values are…

Q: Can anyone go a bit deeper into the connection between solubility and concentration? solutions can…

A: There are three types of solutions - saturated, unsaturated and supersaturated solutions.

Q: o Attempt 4 Glucose generally exists in ring (cyclic) form. A Haworth projection shows the…

A: Here we have to verify the incorrectness in the alpha and beta form of glucose in the given…

Q: 2. Find the pH of a solution prepared by dissolving 12.43 g of tris (MW = 121.135 g/ mol) with 4.67…

A:

Q: 14. The concentration of the original unknown protein solution is determined to be 0.2173 mg/mL.…

A: Given, Concentration of the protein solution = 0.2173 mg/mL Concentration of the protein solution =…

Q: If 37.8 mL of silver nitrate solution reacts with excess potassium chloride solution to yield 0.344…

A: Balanced chemical equation for the reaction of Silver nitrate and potassium chloride is as follows:…

Q: What is the hybridization of the central atom in the bromine trifluoride (BrF3) molecule?

A:

Q: Consider the molecular orbital model for these diatomic species: 0₂ O₂+ 0₂ Fill in the correct…

A: Given,  O2  O2+  O2-  We have to draw the above molecules MO

Q: Draw the Lewis Dot Diagrams for each element below: K N FL Mg Ar C S AI

A: Some elements are given : K, F, Ar, S, N, Mg, C, Al   Lewis Dot diagram of these element are to be…

Q: Write the net ionic equation for the acid-base hydrolysis equilibrium that is established when…

A: Here, we have to write the net ionic equation for the acid-base hydrolysis equilibrium that is…

Q: A system gains 657 kJ of heat, resulting in a change in internal energy of the system equal to +221…

A:

Q: 13. In a certain chemical reaction, 7.29 g of compound A is added to 5.70 g of compound B. Once the…

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

Q: Convert the following units s (state any assumptions you have to make to do the calculations): 380…

A:

Q: A chemist is studying the following equilibirum, which has the given equilibrium constant at a…

A: Given data :

Q: At a particular temperature a 2.00-L flask at equilibrium contains 5.10 x 10-4 moles of N₂, 2.50 x…

A:

Q: ample alculate AS° for the equation below using the standard ntropy data given: 2NO(g) + O₂(g) →…

A: Entropy is a measure of randomness or disorder of the system. The greater the randomness, the higher…

Q: You find that when attempting to synthesize longer polymer structures (e.g. degree of polymerization…

A: Degree of polymerization: the number of monomeric units in a macromolecule or polymer or oligomer…

Q: / d. e. f. H3CO_H Br K(s) MgBr 1. ОН Н 2. Н30+ H OH при NaOH H. H OCH3

A:

Q: Calculate the total AS when 1 mole of ice is heated from -23°C to 27°C. Take the Cp of water and ice…

A: Here we have to determine the entropy change to convert 1mole of water ice at -23°C to water liquid…

Q: When analyzing an IR spectrum, the most significant peaks usually are: a) Given by stretching…

A: IR spectroscopy is used to determine the functional groups present in the sample. Different…

Q: A sample of solid ammonium chloride was placed in an evacuated container and then heated so that it…

A:

Q: you have 2 solutions, one with a pH of 9 and another with a pH of 12, which one would have more OH-…

A: POH is equal to negative logarithmic of hydroxide ion concentration

Q: For the balanced equation below, calculate the percentage yield of hydrogen when 5.63 g of magnesium…

A: Given balanced chemical equation is Mg(s) + 2H2O(l) ----------> Mg(OH)2 (s) + H2(g)  Mass of Mg…

Q: "The dissolving of NH4NO3 is used in chemical cold packs. If 33.7 g NH4NO3 is dissolved in 88.9 mL…

A:

Q: B 55 2-butanol apien Now list the peaks you would see in the IR spectra of these compounds, outside…

A: Fingerprint region in an IR spectrum is the 1400 cm-1 - 600 cm-1 range.

Q: The pK, values for the dibasic base B are pKbl = 2.10 and pKb2 = 7.38. Calculate the pH at each of…

A: pkb1 = 2.10 pkb2 = 7.38 [B] = 0.95 M [HCl] = 0.95 M V = 50.0 mL

Q: Use the following data to calculate AvapHo for water at 298 K. Avap Ho for water at 373 K is 40.7…

A:

Q: calculate ph of 0.28 M solution of NaOH 0.091 M solution of Ca (OH)2 0.040 M2 solution of HClO4

A:

Q: Out of Methyl Ethyl Ketone, Toluene, Cyclohexane, Methanol, and acetone. Identify the functional…

A: Different functional groups.