Measurements mt. 25 25 20 20 Exercise 4. 15 15 Mass = 51.842 g 10 10 What is the mass of the irregular piece of material in kg? a. Initial volume of water Final volume of water b. Volume of irregular material C. d. Density of irregular material AMA

Q: What is the pH of a 1.00x 10 molar solution of LICI? Report your answer with 2 places past the decim...

A: The acid-base nature of the salt solution depends on the nature of the acid and base from which the ...

Q: 12:02 1 Question 18 of 25 Submit Draw the major product of this reaction. Ignore inorganic byproduct...

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Q: Consider the reaction at 298 K. 2 C(graphite) + 0,(g) → 2CO(g) AH° = -221.0 kJ/mol Calculate the qua...

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Q: A gas mixture with a total pressure of 2900 torrtorr is used by a scuba diver. If the mixture contai...

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Q: my clamp, Volumetric flask, buret 23. The end point in a titration of a 50.00-mL sample of aqueous H...

A: Given :-  HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)  Volume of HCl solution = 50.00 mL  Volume of NaOH ...

Q: In the reaction CH4 + C12 --> CH3CI + HCI, which is the nucleophile? A) CH4 B) C12 C) HCI D CH3CI E ...

A: Given- CH4+Cl2-->> CH3Cl + HCl

Q: 14. Which is the Bronsted base in the equation? [Fe(H2O)6]*3 + H20 = [Fe(H2O)50H*2 + H3O* [Fe(H2O)5O...

A: Bronsted Lowry Acid-Base concept : According to it, an acid is a substance which can donate H+ to an...

Q: Which of the products in the halogenation of 2-methylbutane will make up for the highest percentage ...

A: Halogenation of 2-methylbutane  

Q: A patient needs 100 g of glucose in 6 hrs. How many litres of 5% glucose solution should be given? O...

A: 5% solution of glucose is  5g of glucose in 100 ml of water  To make 5g to 100g we should multiply i...

Q: The compound below is treated with chlorine in the presence of light. CH3 -CH3 ČH3 Draw the structur...

A: In presence of light free radical mechanism occur and reaction proceeds through formation of most st...

Q: The pressure, P, the temperature, T, and the volume V of an ideal gas are related by PV= nRT, wheren...

A: Given: temperature increased by ΔT = 0.04  And nR = 1  

Q: 6. A 190 lb worker in a factory received an exposure to AB which has a molecular weight (MW) of 278 ...

A: 1 lb = 0.454 kg Given, Total urine excreted - 2060 mL Concentration of A in urine - 1.28 ng/mL MW of...

Q: by moving bound argy expeciment fos C1N kd, calculate the jonic mobitity enf kt jf applied potendial...

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Q: If tripling the concentration of a single reactant Rin a multi-reactant reaction (while leaving all ...

A: Rate = k [R]x

Q: 1. The structures of six organic compounds are shown below. H EH H2N (b) (c) NH2 NH2 H2N OH (d) (e) ...

A: A molecular formula made of the chemical symbols of the constituent elements of a certain compound w...

Q: 5. Based on the graph, overall, what happens to the solubility of gascous solutes like CO, when temp...

A: Answer: This graph is giving us the interpretation of solubility of a gas (CO2) with respect to temp...

Q: A solution contains 1.21x10-2 M silver acetate and 8.27x10-3 M lead nitrate. Solid sodium iodide is ...

A: Given: Concentration of CH3COOAg = 0.0121 M Concentration of Pb(NO3)2 = 0.00827 M  

Q: Refer to the chemical reaction below: PBC12 (s) E Pb2+ +2CI- Calculate the solubility product consta...

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Q: 6. How much heat does a 15-gram piece of aluminum metal release as it cools from 260°C to 35°C? 4.18...

A: Detail mathematical calculation to find out the heat released is given below

Q: It takes 30.5 kJ of energy to raise the temperature of 300 g of a substance from 30.0°C to 80.0°C. W...

A: Given, Amount of energy (Q) = 30.5 kJ = 30.5 × 1000 J = 30500 J Mass of a substance (m) = 300 g Init...

Q: Vhat is the pOH of a 0.0250 M HI solution? А. 0.944 В. 12.398 С. 1.602

A: Given : Molarity of HI = 0.0250M

Q: Number of Molecule valence electrons Formal Charge Electron-Group Geometry Molecular Geometry Resona...

A: The table can be filled using the Lewis structures of the given molecules 

Q: The change in entropy, ASan, is related to the the change in the number of moles of gas molecules, A...

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Q: You have a 258.3 mL sample of 1.659 M HA (Ka = 5.97⋅10−75.97⋅10-7).  Calculate the pH of the best bu...

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Q: To fill a prescription, the registered pharmacy technician dissolves 1807mg of aluminum hydroxide in...

A: In order to solve this question, it is necessary to convert all the units to grams.

Q: A student created a solution in a 100 mL volumetric flask by adding 3.753 g KNO3 and 25.77 mL 0.358 ...

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Q: Consider an 50.0 mL analyte solution containing 0.50 g of KHP, titrated against 0.10 M sodium hydrox...

A: Answer: This question is based on acid-base titration where acid is the analyte and base is the titr...

Q: A solid piece of aluminium is reacted with hydrochloric acid. How many moles of aluminium are requir...

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Q: ? a. HO. b. NH, N. d.

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Q: Arrange the compounds by their solubility in water. Most soluble in water Least soluble in water Ans...

A: "Like dissolves like" is a thumb rule for dissolution of solute in solvent.  Highly polar compound c...

Q: Match the point in a titration to the pH range Equivalence point of a strong acid/strong base titrat...

A: EQUIVALENCE point is where the concentration of acid and base is equal

Q: Draw the enantiomers of each molecule. If a molecule does not have an enantiomer, draw the given mol...

A:   Optical activity : The property of rotation of planeplolarized light (PPL) is called optical activ...

Q: Calculate the cell potential for the following reaction that takes place in an electrochemical cell ...

A: Al(s)|Al3+(aq),( 0.115 M)||  Al+3(aq),(3.89 M)∣Al(s)  

Q: The base protonation constant K, of azetidine (C;H,NH) is 1.5 × 10-8. Calculate the pH of a 0.31 M s...

A: The pH of the solution can be determined by using ICE table and equilbrium expression for the given ...

Q: Titration of the I2 produced from 0.1187 g of primary- standard KIO3 (Molar Mass= 214.0o g/mol) requ...

A: The reactions given are, Given: Mass of KIO3 reacting = 0.1187 g. And volume of Na2S2O3 required = ...

Q: What happens to the value of AH for a thermochemical reacti reaction is reversed? *

A:   Heat of a reaction :  Heat energy change measured at constant temperature and pressure is called e...

Q: H H H H H H H H

A: Given : We have to edit the structure of butane to make butanoic acid.   

Q: IS

A: [HCl] = 0.0075 M HCl ----> H+ + Cl-

Q: Gaseous butane (CH,(CH,) CH,) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide ...

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Q: The normal boiling point of cyclohexane is 80.74 °C. At 20.00 °C, the vapour pressure of cyclohexane...

A: The vapour pressure of cyclohexane at the given temperature can be determined by using ideal gas equ...

Q: How many grams of Ba(OH)2 are needed to prepare 2.50 liters of 0.200 M barium hydroxide solution?

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Q: In the following structure there are [ Select ] o bonds and [ Select ] T bonds. H N.

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Q: Fe,0.t 3 Ha ca) a) AH" a AG at 230°C

A: The reaction given is, => Fe2O3 (s) + 3 H2 (g) → 2 Fe (s) + 3 H2O (g)   

Q: Identify the polyprotic acids. Select all H3PO4 HCI H2CO3 H2SO3 HCIO3 HNO3

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Q: Show your complete solution for the ff: Calculate AS° for CaCo, (s) CaO(s) + CO, (g) b. 2H,(g) + O, ...

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Q: What is the freezing point of an aqueous 1.00 m NaCl solution? (Kf = 1.86 OC/m) (Assume complete dis...

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Q: pH - 8.80 Express your answer using two significant figures. Enter your answers numerically separate...

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Q: The partial pressures of the following reaction are given H,(g) + 1/2 0,(g) → H,0(g) H,(g) = 0.50 at...

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Q: The base protonation constant K, of 1-H-imidazole (C;H,N,) is 9.0 x 10-8. Calculate the pH of a 0.57...

A: We have to predict the pH of solution.  

Q: What is the change in internal energy if the heat absorbed by the system is 97 J and the work being ...

A: Using first law of thermodynamics internal energy = heat + work

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.