A piece of unknown substance weighs 56.6 g and requires 3.56 kJ to increase its temperature from 312 K to 403 K; what’s its heat capacity, C in J/°C?

Q: What is anode used for in Transmission Electron Microscope (TEM)? O Move electron beam during…

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Q: Calculate the pH of a buffer solution that is 0.41 M in HOCl and 0.50 M in NaOCl. [Ka(HOCl) = 3.24 x…

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Q: Consider the reaction: CaCO3(s) CaO(s) + CO₂(g) Using standard thermodynamic data at 298K, calculate…

A: “Since you have posted multiple questions, we will provide the solution only to the first question…

Q: Calculate the pH change that results when 15 mL of 2.7 M HCI is added to 600. mL of each of the…

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Q: QUESTION 4 What description of the organic product of this SN1 reaction is most accurate? ch7 d3…

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Q: Using the thermodynamic information in the ALEKS Data tab, calculate the standard reaction free…

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Q: Part A What is the pH of a buffer prepared by adding 0.708 mol of the weak acid HA to 0.608 mol of…

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Q: но лд 18 ха

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Q: How many signals would be present in the ¹HNMR? 02 O 3

A: Number of different proton give different signal in 1H NMR...

Q: Identify whether the bonding in a compound fe would be primarily ionic or covalent a. Iron and…

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Q: A. What atom besides carbon and hydrogen is in this compound? B. Determine the chemical formula.…

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Q: Write a summary of Importance of Biodiversity

A: Given question is about biodiversity. We need write to about importance of biodiversity.

Q: A correct skeletal outline for XeO3 is shown below. Starting from this structure, complete the Lewis…

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Q: 1. Answer the following questions regarding the TLC plate below. A B C unk S.E a) Which compound (A,…

A: Thin layer chromatography (TLC)  is used for the identification of unknown compounds and for the…

Q: A solution of phosphate (pKa = 2.1, 6.8, 12.4) contains 0.0100 mol H2PO4- and 0.0250 mol HPO42-.…

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Q: A volume of 500.0 mL of 0.170 M NaOH is added to 525 mL of 0.200 M weak acid (K, -7.52 x 10-³). What…

A: First we need to calculate moles of both acid and base using their molarity and volume. Using moles…

Q: STARTING AMOUNT X What is the change in enthalpy in joules when 5.44 x 104 mol of AgCl solid…

A: Moles of AgCl = 5.44 x10 —4 mol

Q: A sample of propane gas, C3H8, has a volume of 1.50L at 4.315 x 105  Pa and 15.00 Celsius. Calculate…

A: Given : volume = 1.5 L             Temperature = 15° C  Tip : at stp 1 mole = 22.4 L

Q: tetraphenyl phosphonium chloride (TPPCl) powder (FW=342.39) is 89.0 percent pure. How many grams are…

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Q: 2. Draw all mechanisms & provide major product. DAYO DAR 10 1. LAH 2. H30* 2:0 OH 300, H +A1H3

A: LiAlH4 also known as Lithium alluminium hydride (LAH)  is one of the most powerful reducing agents…

Q: What is the ¹H NMR splitting pattern of the indicated hydrogen? O singlet O doublet

A: Spin splitting = (N +1) Where N = number of neighboring hydrogens

Q: Chromiun metal can be produced by the reduction of Cr2O3 with elemental silicon.  2 Cr2O3 + 3 Si…

A: Given: 2 Cr2O3 + 3 Si --> 4 Cr + 3 SiO2

Q: A. What does it mean to have the [M+2] peak at 138? B. Determine the chemical formula. Predict the…

A: If there is 1Br atom in a molecule it gives M+ and M+2 peaks with 1:1 intensity ratio because there…

Q: 1. Draw structure of the following compounds? A) ethyldimethylamine B) N,N-dimethylbutanamide C)…

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Q: Which of the following is a polyatomic ion? NaCIO C1¹ CIO ¹ Cl₂06

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Q: chemist prepares a solution of aluminum chloride (AICI3) by measuring out 36.6 μmol of aluminum…

A: A homogeneous mixture of two or more substances is known as a solution. The species which present in…

Q: Why did you measure 60 ml and not 59.04 ml to make up this final solution?

A: Rules for significant figures: All non-zero digits are significant Captive zeroes are significant…

Q: A chemist titrates 50.0 mL of a 0.4173M nitrous acid (HNO₂) solution with 0.2299 M KOH solution at…

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Q: If a biopolymer molecule is attracted to the partial charges found on the water molecule, the…

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Q: PROBLEM F.5 Write the IUPAC name for each of the following compounds. (a) (b) OH (c) N

A: Steps for IUPAC naming-  1- first see the functional group present in the compound 2- find the…

Q: In the temperature-composition diagram shown here, the vaporization temperature of the pure solute…

A: Given phase diagram:

Q: You are asked to compound a 1000 mL bag of Dextrose 15% solution. The pharmacy stocks Dextrose 50%…

A: Initial concentration of  stock dextrose solution = 50% Final concentration of dextrose solution =…

Q: Use the figure below to answer the following: a) Determine the energy difference between the 6s and…

A: To calculate the energy difference between 6s and 5p states, 4d and 5p states, and between the 6s…

Q: Consider the following chemical reaction at equilibrium: HF(aq) + H₂O(l) ⇌ H₃O⁺(aq) + F⁻(aq) If…

A: According to the Le chatelier's principal, " if any stress (change in pressure, temperature and…

Q: Complete the balanced chemical reaction for the following weak base with a strong acid. In this…

A: We know HClO3 is a strong acid so in solution it gives off its proton& dissociates into…

Q: 5. Draw both the reactants (propanol and propanoic acid) and the products for the reaction below.…

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Q: Vitamins and minerals are nutrients for the body. An example of vitamin is Vitamin C. Look up the…

A: We need to find the molecular formula of Vitamin C and determine its average molecular mass, other…

Q: What is the order of increasing acidity for the following compounds? (least acidic to most acidic)…

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Q: Calculate the energy emitted by a mole of hydrogen atoms that see their electron pass from level 5…

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Q: We start with a sample of pure A(g). The following equilibrium is established 2 A(g) B(g) + C(g)…

A: Given: Total pressure = 8.33 atm Temperature = 25.0oC = 298 K Partial pressure of A(g) = 5.26 atm

Q: Organize the following elements by their electro negativity (largest to smallest): sulfer, calcium,…

A: Given elements  sulfer, calcium, oxygen, magnesium, aluminum

Q: =0: 0: нн OCH₂CH3 H2C о: OCH₂CH3 осн он —

A: Mechanism of the given reaction.

Q: 6) We observe several chemical reactions in everyday life. Often these reactions cause color change,…

A: A chemical change is a method in which an element changes to another new compound having different…

Q: Assume that you started with 3.78g of the mixture and you recovered 1.45g of Benzoic acid and 0.34g…

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Q: A 10.0L tank at 10.5°C is filled with 2.31g of carbon dioxide gas and 16.8g of chlorine…

A: Ideal gas equation: PV = nRT Where, P = pressure in atm; V = volume in L; R = 0.082 L atm mol-1K-1;…

Q: Are noble gases considered to have electro negativity? Why or why not?

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Q: Please show complete solution and given 1. For each of the following pairs of variables, which…

A: In first question we used the ideal gas equation-  PV  = nRT  in the second question used the Boyle…

Q: Draw the product(s) formed by heating the compound shown in basic ethanol. NaOEt EtOH OH O

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Q: what is the pH of the solution if 16.0 mL of 0.100 M NaOH is added to 20.0 mL of 0.150 M HCl? Is the…

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Q: Convert 3.74 x 1019 particles CrN to moles

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