A sample of calcium oxalate powder with a porosity of 46% and weighing 123.4 g was found to have a bulk volume of 105 mL when placed in a 100 mL graduated cylinder. Compute for the density. Show your solution.

Q: A synchrotron is an extremely powerful source of X-rays. The X-rays also can be geerated by…

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Q: The easiest fusion reaction to initiate is 2H + ³H → He + ¹ n Calculate the energy released per…

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Q: 1- The acid-dissociation constant for chlorous acid, HCIO₂, at 25C is 1.0×10². Calculate the…

A: We are authorised to solve only one question at a time. Please post rest of the questions…

Q: 2.50 moles of CH4 molecules contain ___ moles of H atoms. 1.51 x 10^24 0.625 5.00 10.0 2.50

A: . • The values provided in the question are:-        i) Number of moles of CH4 = 2.50 mol    • We…

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Q: A 0.678-g sodium carbonate sample with 98.6% purity requires 36.8 mL of sulfuric acid solution to…

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Q: 7.Finish off the after reactions with the main products and the lost reaction conditions. Point to…

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Q: Calculate the boiling point of a solution of 86.3g ethylene glycol (C2H6O2) in 143.2g of water.…

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Q: balance the equation H2SO(aq)+Pb(OH)4(s) -> Pb(SO4)2(s)+H2O(I)

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Q: HOW

A: EON is an extremely long period of time.

Q: Draw the Lewis Dot Structures of the following ionic compound. I 1. KBr 3. A1,0, 2. CaF₂ 4. Na,O the

A: Given-> ->KBr , CaF2 , Al2O3 , Na2O ->Ionic compounds are in form of ions .

Q: When [Zn2+] = 0.35 M, [H2] = 0.0025 M pH = 3.00, calculate E for the redox reaction below at 25°C:…

A: Given,  2H+ + Zn → H2 + Zn2+   E°cell = 0.76 V Zn2+] = 0.35 M, [H2] = 0.0025 M,                 pH =…

Q: An electroplating experiment was done from a solution with Al³+ ions. After a current application of…

A: Given, Al3+(aq) + 3e-  ➝ Al(s) current (I) = 1.3 A time (t) = 50 min = 50 × 60 s = 3000 s Mass of…

Q: when 8.4 mol of PCl5 (g) is mixed with 1.8 mol of PCl3 (g) and allowed to come to equilibrium in a…

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Q: Name the tripeptide using the three letter amino acid abbreviations separated by a hyphen. (For…

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Q: For the following question(s), consider the following balanced equation. Mg3N2   +   6H2O →…

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Q: Modify isoleucine to show its structure at pH 1 and pH 13. Modify each amino acid by adding or…

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Q: Given the reaction: Fe2++ Cr2O72- → Cr3+ + Fe3+  (acidic) Write the letter of the correct answer.…

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Q: What is the oxidation number of Na(s)?

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Q: Sketch the plane of the axis from the following Miller indices. (i) (211) (ii) (101)

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Q: Chemistry Draw these components semi-developed a) pentan-2,3,4-trione b)heptyl ethanoate c)…

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Q: 7. (a) Use 2-D structural formulae to illustrate the two geometric isomers of pent-2-ene. Label each…

A: #7.(a): Pent-2-ene forms geometric isomerism(cis/trans) due to restricted rotation around the-C=C-…

Q: 4. From smallest to biggest value of solubility, order the following salts with their Ks.p between…

A: We are authorised to solve only one question at a time. Please post rest of the questions…

Q: 2CH3CH₂ + Pb2+. SH

A: Thioalcohols react with heavy metals like Pb2+ to form insoluble compounds.

Q: If 150.0 mL of 2.5 mol/L Na2SO4 is mixed with 125 mL of 0.26 mol/L AgNO3, determine the…

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Q: Activity 2: Problem Solving. Show your complete solution. Suppose that we have an equilibrium at…

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A: General electronic configuration of first row of d block element is [Ar] 4s2 3d1-10

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A: Statement 1 is incorrect as there are six atoms in same plane

Q: If the temperature is measured to be 242.06 K and the pressure to be 37.7 kPa at the summit of Ojos…

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Q: Methanol can be synthesized by combining carbon monoxide and hydrogen. CO(g) + 2H₂(g) CH₂OH(g) A…

A: 1. Here since we can see that reactant are hydrogen gas and carbon monoxide so if argon is added to…

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Q: A 5.00-mL sample of vinegar was pipetted into a flask, two drops of phenolphthalein indicator were…

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Q: Provide the IUPAC name for this compound. O

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Q: 4. 49 Cr-> 49 V + 24 23 5, 238U- 23A Thị 92 90 6. 214 Bi-> 214 Po+ 83 84

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Q: Benzoic acid, ,ionises in water to produce benzoate, ,and hydronium, H3O+ ions. The acid ionisation…

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Q: a) Unlike benzoic acid, hydrochloric acid ionizes completely. Calculate the pH of a 0.30M HCI…

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Q: d. Determine the major product of the following reaction. Draw the mechanism of its formation. ( off…

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Q: QUESTION 11 Determine the molar solubility of MX (Ksp-8.3x108) in 0.748 M NaCN. The metal ion M…

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Q: What is the IUPAC name for the above?

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Q: The element X has two naturally occurring isotopes: X50 (relative abundance = 30.15%, mass = 50.3)…

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

Q: For the reaction 2HNO3 + Mg(OH)2 → Mg(NO3)2 + 2H₂O, how many grams of magnesium nitrate are produced…

A: 5.9 g of Magnesium nitrate, Mg(NO3)2  are produced from 5 g of Nitric Acid HNO3

Q: ) Draw the valid Lewis structure, identify the (b) molecular group geometry, (c) electron group…

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Q: 1. What is the conjugate base of each of the following acids: a. HCIO4 -: 3. PH4 : 4. HCO3: b.H₂S:…

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

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Q: a) b) C) Ď HBr CH3CH₂OOCH₂CH3 1. Hg(OAc)2, H₂O 2. NaBH4 1) BH₂ / THF 2) H₂O2 NaOH (aq) cold

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Q: 2+ Cu(aq) + 2e → Cu(s) Agaq) +eAg (s) Complete the cell notation for the reaction: Ag-(aq) Cu(s)…

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Q: The hydrogen ion concentration of a 0.01M formic acid solution is 1.25 x10³ M. What is the percent…

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Q: Write the conjugate acid of each of the following: a. HSO3: 3. PO43: h. F : 4. CQ: 5. H₂O:

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Q: What type of isomerism is exhibited by the following pair? [Co(SCN)(NH3)5]Cl2 [Co(NCS)(NH3)6]Cl2…

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Q: trial #a It was 64.8 Determine the molality of each unknown solution, using Kr = 4.50 °C/m for…

A: As per Bartleby guidelines, I am allowed to answer one question at a time. Please re upload the…