. Calculate each of the following: a. the mass of a copper pipe in which the copper has volume of 70.5 cm3 b. the mass of a titanium rod having a volume of 0.81 cm Common Metals Density (g/cm³) 2.70 4.51 7.87 8.96

Q: At 100°c and 2 bar pressure, the degree of dissociation of phosgene is 6.30 x 105. Calculate the equ...

A: The reaction given is, => Given: Degree of dissociation = 6.30 × 10-5  Temperature = 100 oC And ...

Q: What is the cell potential for the following reaction at 25 °C?  Ni(s) + Cu2+(0.010 M) → Ni2+(0.001...

A: Given, Ni(s) + Cu2+(0.010 M) → Ni2+(0.0010 M) + Cu+(1.0 M) SRP: E° Ni2+/Ni = -0.25 V; E° Cu2+/Cu+ = ...

Q: For the following process, determine the change in entropy for the system (ASsys), the surrounding (...

A:

Q: Calculate the percentage of nitrogen, N, in dinitrogen trioxide, N203. A. 46.7% B. 18.4% C. 36.8% D....

A: The molecular weight of N2O3 is (14×2+16×3)=76 gm/mol Weight of nitrogen in N2O3 is (14×2)=28gm

Q: Which of the following will you use to find the Ka value for bromocresol green? Select one: a.The g...

A: the Ka value for bromocresol green, we can calculate from 

Q: A 30.0030.00 mL Ba(OH)2Ba(OH)2 solution of unknown concentration was neutralized by the addition of ...

A:

Q: For Drug A, the difference between the effective dose 50 and lethal dose 50 is 4mg. For Drug B, the ...

A: Therapeutic index is defined as the difference between the amount (concentration) of the drug that i...

Q: Use these bonds and atoms to do the following: 1. Construct a model of methane. Write down its dash ...

A: Since you have asked multiple questions, we will answer the first one for you. To get the remaining ...

Q: Draw the hyperconjugation interaction that lessens the electrophilicity of the carbonyl on the struc...

A: The answer is as follows:  

Q: Question 18 The cell notation for the Galvanic cell is Cd(s)/Ca2*2(s)/" The Standard Reduction Poten...

A:

Q: II. Directions: Using Lewis structure, show how an ionic compound is formed between each pair of ele...

A:

Q: What are the variables in a van’t Hoff plot?     K vs T     K vs 1/T     ln K vs 1/T     ln ...

A: To explain: The variables in a van't Hoff plot.    

Q: One method for the decomposition of carbon dioxide proceeds as follows: 2CO2(g) Which of the followi...

A:

Q: Consider the structure shown. :ö: Determine the number of shared and unshared electrons in the struc...

A:

Q: What is the concentration (M) of KCl in a solution made by mixing 25.0 mL of 0.100 M KCl with 50.0 m...

A:

Q: Fermentation is a complex chemical process of wine making in which glucose is converted into ethanol...

A:  the given reaction., C6H12O6 -----> 2C2H5OH + 2CO2 Molar mass of glucose = 180 g/mol Given Mass ...

Q: Briefly explain (1-2 sentences) the differences between obtained results (Optical vs Mass Spectral) ...

A: ICP-AES is based on measurement of excited atoms and ions at the characteristics wavelength and used...

Q: How many moles of NaOH are present in 12.5 mL of 0.210 M NaOH?

A:

Q: Gaseous ethane (CH, CH,) will react with gaseous oxygen (O,2) to produce gaseous carbon dioxide (CO,...

A:

Q: When an open-chain monosaccharide converts to a monosaccharide in cyclic form, an acetal is produced...

A:

Q: True/False.  HBrO3 is a strong acid. Why? c. Rank these acids from strongest to weakest: HF, H2O, H...

A: Those compounds which lose a proton in presence of any base or those compounds which decrease the pH...

Q: Put some water in cup. Sprinkle black pepper all over the surface. What does the pepper do? Tell you...

A: Polar molecules dissolve in polar solvents whereas non polar molecules dissolve in non polar solvent...

Q: Which of the following changes will affect the rate constant of a reaction 1. Increasing or decreasi...

A: The rate constant is affected by  1) increasing or decreasing the reaction temperature

Q: Use Grubbs test to decide if the maximum value is an outlier.

A: Ans: option 4 Normal probability plot of mass spectrometry measurements

Q: (b) Na20(s) + 2HI(g)→ 2Nal(s) + H20(1) AG (Na,0(s)) =-376.56 kJ/mol AG (HI(g)) = 1.30 kJ/mol f AG (H...

A:

Q: CI Ca) (b) (с) CI (d)

A: Lowest  Energy conformation have minimum  Steric Interactions and it can be drawn into Cyclohexane f...

Q: How many grams of gas are present in each of the following cases? b. 8.75 L of C₂H₂ at 378.3 kPa and...

A: We have to predict the mass of gases.  

Q: Question 15 Consider the reaction: N204(g) 2 NO2(g). What is AS° at 25 °C? AHf, kJ mol" AGF, kJ mor1...

A:

Q: An analyst obtained the following data for the percent compound Z in triplicates (n=3) of an insecti...

A: Given., the percent compound Z in triplicates (n=3) of an insecticide preparation: 7.47, 6.98, and 7...

Q: WHICH STATEMENT IS TRUE ABOUT WATER? A. IT EXHIBITS HYDROGEN BONDING B. IT DISSOLVES NONPOLAR COMP...

A: option A correct.

Q: At 2000 °C, N2(g) + O2(g)  2 NO(g); Kc = 4.10 x 10-4 What is Kp for this reaction?     2.17 x 10-...

A:

Q: I. Directions: Draw the lewis structures of the neutral atom and the ion of each element. Determine ...

A: Lithium (Li) atomic number = 3 Number of valance electrons = 1  

Q: Using the data in the table, calculate the standard entropy changes for the following reactions at 2...

A:

Q: Question 3 Given the dissociation constants for each deprotonation, what is the dissociation constan...

A: In order to get the overall equation, the two chemical equations are added together. On addition of ...

Q: - Write a paragraph about the difference between a chemical and physical change. Give examples of ea...

A: To differentiate: Chemical and physical changes.  

Q: Write the equation for the addition of an electron of a chlorine atom

A: The atomic no of chlorine is 17,so its electronic configuration is 1S22S22P63S23P5,so to get the sta...

Q: Name the following nitriles using IUPAC and/or common nomenclature. IUPAC common NC

A:

Q: Consider the reaction: N2O4(g)  2 NO2(g). What is ΔS° at 25 °C?      ΔHf°, kJ mol-1 ΔGf°, kJ mol...

A:

Q: When 17.8 grams of aluminum are reacted with 82 grams of chlorine, determine the theoretical yield (...

A: The balanced equation for the reaction of Aluminum (Al) and Chlorine (Cl2) is ,   2  Al  +   3 Cl2  ...

Q: 3.Show the steps involved in the following synthesis Br çO,H CI

A:

Q: finish the reaction

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly repos...

Q: 1. Determine the enthalpy of formation of the reaction: [4 NH: + 5 O2 -> 4 NO + 6 H2O] NH: = -80.89 ...

A: The correct option is:  

Q: What is the appropriate size of volumetric flask to use if you want to dilute a 75.00 mL solution of...

A: The question can be solved using mole concept as:  

Q: 1. Answer the following questions:  a. At STP, 5.50 mol of gas occupies approximately what volume i...

A: Answer: Ideal gas equation will be used to solve the following questions and it is shown below: PV=n...

Q: The components of angular momentum are as follows: I. L, = yp; - "Py II. L. = xp,- yPx П. L, 3 ур. —...

A: Angular momentum L→ is the cross product of the position vector r→ and the linear momentum vector p→

Q: Which of the following statements is true? A Liquids can be weighed using a weighing paper. B In wei...

A: Find out the true sentence from given four sentence and explain why it is correct while others are n...

Q: An aqueous solution contains 0.413 M hydrocyanic acid. How many mL of 0.319 M potassium hydroxide wo...

A:

Q: Which of the following is not a way of expressing data reliability:   Statistical Tests   Sampling...

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: Consider the following natural fatty acids. Of these, which is predicted to have the LOWEST melting ...

A: To identify: The fatty acid with the lowest melting point.  

Q: t is a good practice when leaving an operating equipment unattended? Record the equipment using a vi...

A: When we have to leave and the equipment is already operating then we should do following thing.

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.