The boiling point of hexane at 1 atm is 68.7C. Estimate its vapor pressure at 50C.

Q: MULTIPLE CHOICE Question 3 Soil samples from a site show contamination by lead, lithium, and mercury...

A: Mercury  based batteries are in use from long time.  Batteries have lead acid solution currently. Th...

Q: For the reaction below, Kc = 1.10 × 10-8. Note Kc is sometimes called K. What is the equilibrium con...

A: Given: Kc = 1.10×10-8 Initial concentration of HONH2 = 0.140 M

Q: The change in the internal energy of a system that absorbs 2,500 J of heat and that does 7,655 J of ...

A: Given-> Heat absorbed = 2500 joule Work done on surrounding = 7655 joule  

Q: 2. Complete the tables from the data saved in your lab book. Use only a sampling of the data for pre...

A: Answer - Table -1 Ideal gas  1MW = 4 g/mol Volume            Pressure          PV Product ( P x V) 7...

Q: Q: Indicate the effect caused by the following situations on the value of the weight molecule of a s...

A: The Weight of solute is affected only in the condition  when solute is lost .

Q: A high-altitude balloon contains 30.0 L of helium gas at 1.00 kPa. When the balloon moves to an alti...

A: Given data---> V1=30.0 L P1= 1.00 kPa P2= 25.0 kPa V2= ?

Q: MULTIPLE CHOICE Question 11 Why are POPS so dangerous to organisms? They acidify water, so they can ...

A: POP's are so dangerous for organism because these are persistent, resisting normal processes that br...

Q: Determine the rate of formation of HBr considering the mechanism of chain reaction, i.e.: (a) Initia...

A:

Q: According to the video, the unknown compound could be a benzoic acid or mandelic acid. Use the infor...

A: This Technique is Called Mixed melting point Technique in which Unkown is added to Known compounds.

Q: 24.1 ml sample of 0.644 m formic acid (hcho2) is titrated with 0.644 m naoh. calculate the ph after ...

A: Given: Concentration of HCOOH = 0.644 M Volume of HCOOH sample = 24.1 mL = 0.0241 L                 ...

Q: Answer the question in full details and complete paragraphs, using lots of information about the top...

A: Polycarbonates are type Of thermoplastics having carbonate groups and are optically  Transparent. 

Q: 1.0mL of 6.0M HCl is added to 100mL of a buffer that contains equal moles of acetic acid (CH3COOH, K...

A: Initial pH of the buffer containing equal moles of acetic acid and sodium acetate can be given as: p...

Q: e) .SH COCI2 HO excess PhMgBr d) Ph NOH f) 1) nBuLi 2) НСНО 3) с. Н2SO4 Ph

A: Detail mechanistic pathway is given below to find out the product

Q: pH (calculated and theoretical) of prepared buffer solutions Show all work with units.  The answers...

A:

Q: When 12.0 mL of a 3.90x10-5 M potassium sulfide solution is combined with 15.0 mL of a 2.94x10-4 M s...

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

Q: Use the Activity Series of Metals to solve the following. Select Reaction or No Reaction to describe...

A: Solid Chromium metal will react if the reactivity of chromium is higher than other metal ion present...

Q: consider the reaction: H2(g) + NO(g) arrow forward N2O(g). What is the order of reaction with respec...

A: Detail solution is given below

Q: Be sure to answer all parts. At 430°C, the equilibrium constant (Kp) for the reaction 2NO(g) + 0;g) ...

A: Recall the given reaction,  2 NO (g)  +  O2 (g)  <----->  2 NO2 (g), the equilibrium constant ...

Q: Question 13 When people fail to protect wetlands and wetland organisms, such as mangrove stands and ...

A: A question based on environmental pollution that is to be accomplished.

Q: Give two examples of the topics listed below that happen in everyday life. 1. Endothermic process 2....

A: 1. Endothermic process2. Vaporization3. Sublimation4. Exothermic process5. Freezing

Q: 1. This titration curve could represent 20 ml of 0.1 M with 0.1 M NaOH. The buffer region(s) is/are_...

A: When a poly protic acid is titrated with a strong base then there are 'n' equivalent points and 'n' ...

Q: A chemist titrates 80.0 mL of a 0.1023 M butanoic acid (HC,H,CO,) solution with 0.4765M KOH solution...

A: In this question we will do an acid-base reaction between butanoic acid which is a weak acid and KOH...

Q: For H3PO3, Ka1= 4.06x10^-2 and Ka2= 3.92x10^-7. Calculate the pH of 0.295 molar solution H3PO3

A:

Q: The specific heat of liquid bromine is 0.226 J/g-K. How much heat (J) is required to raise the tempe...

A: Below attached file showing the details answer All the best 

Q: Determine the rate of formation of HBr considering the mechanism of chain reaction, i.e.: Terminatio...

A:

Q: the injector is kept at higher temperature than the column so that it will move quickly. If the samp...

A: In the given problem we have to check whether the given two statements are correct or not in referen...

Q: Experiment 1: Preparation and pH of Buffer Solutions Test Data:     Mass of Sodium Acetate :4.0 g ...

A: Given, mass of sodium acetate = 4.0 g Volume of Sodium Acetate Solution= 100.00mL Acetic Acid Concen...

Q: Consider the reaction below. Which of the following would increase the partial pressure of B at equi...

A: Answer: This question is based on Le-chatalier's principle, according to which on changing any param...

Q: For the experiment of the determination of the unknown powder using mixed melting points technique, ...

A: The procedure for the determination of the melting point range for a mixture of unknown compound and...

Q: 3a. Draw the structure of 2-butene and the product from the reaction of 2- butene and Br2/CCI4. 3b. ...

A: Alkene follows markovnikov rule in addition of hydrogen halide 

Q: If water is added to a 0.70 molar solution of CuSO4, what will change? O Molarity will increase O Mo...

A: Dilution of the solution: When we dilute a concentrated solution with pure water, the mole of solute...

Q: Which of the following is/are true about the peptide bond? It has a triple bond character There is ...

A: Amino acids can be defined as the organic compounds containing carboxyl group and amine group.

Q: 6. A mixture that weighed 1.0105 g may contain NaOH, Na,CO; and NaHCO. It was dissolved in 100 mL of...

A: A question based on solutions that is to be accomplished.

Q: elect all statements that are correct O From the Lineweaver-Burk plot the equilibrium constant (Keg)...

A: 2,4,6 are correct

Q: 10. H2 (g) + C¿H4 (g) → C¿H6 (g) 11. 2C,H, (g) + 702 (8) → 4CO2 (g) + 6H2O (g)

A:

Q: 4. For the acid hydrolysis of ethyl acetate, the rate constant at different temperatures is given in...

A: The data given is,  

Q: the reaction is represented as N2g) + H2g)=NH3(g)

A: At equilibrium ,    Kc = (concentration of product)/(concentration of reactant ) Kc= [NH3]/( [N2]1/2...

Q: Please identify the gas law described in each of the following statements with formulas. Thank you s...

A: Identification of gas law:

Q: HBr 100 °C

A: At high temperature thermodynamically controlled product predominates  At low temperature kineticall...

Q: Arrange the salts by their molar solubility in water. value for Most soluble Least soluble

A:

Q: What should be the pH range of an indicator that has a Kb of 5.21x104? A) 9.72 to 11.72 B) 5.72 to 7...

A:

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

A:

Q: Be sure to answer all parts. Given the value of the equilibrium constant (K) for equation (a), calcu...

A: Given -> O2(g) ---> 2/3(O3)(g).   Kc = 8.70 × 10-9  

Q: average K= 2.3116, Fe = 0.006 please help! 3. Suppose you had prepared Beaker D, where the initial c...

A: Given: Initial concentration of SCN- = 0.0012 M Initial concentration of Fe3+ = 0.006 M And the equi...

Q: The molar heat capacity of a compound with the formula C2H6SO is 88.0 J/mol-K. The specific heat of ...

A: Given,  The molar heat capacity of a compound with the formula C2H6SO is 88.0 J/mol-K. The specific ...

Q: excess oxygen in a bomb calorimeter. The calorimeter, which alone had a heat capacity of 2.67 kJ/oC ...

A: Temperature difference (□T ) = 27.95 - 24.32 = 3.63 °c Mole(n) = 1.45 /60 = 0.0242 mol  Using energy...

Q: To 0.360 L of 0.150 M NH 3 H is added 0.140 LL of 0.110 M MgCl 2.

A: first calculate the moles of every compound used n(NH3)= (0.150 mol/L )(0 .360 L) = 0.054 moles NH3 ...

Q: 50.00 45.00 40.00- 36.00 30.00 3 25.00 20.00 15.00 10.00 5.00 MM CM 0.00 0.00 120 6.00 10.00 1 14.00...

A: Area of sorbitol peak is calculated in the following step. 

Q: 8. While studying the adsorption isotherm of acetic acid on charcoal, if 2.5 gm of charcoal be taken...

A: We use the Freundlich equation to plot Freundlich adsorption isotherm curve. Here adsorbate is aceti...

Q: Determine the value of delta Smix for a gaseous mix that contains 0.25 bar of 1-butene and 0.18 bar ...

A: Given:-   Determine the value of ∆Smix   for a gaseous mix that contains 0.25 bar of 1-butene and 0....

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.