Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Assignment CHEMISTRY
Q1 - Explain how much portion of an atom located at (i) corner and (ii) bodycentre of a cubic unit cell is part of its neighbouring unit cell.
Q2- What is the two dimensional coordination number of a molecule in square close-packed layer
Q3- A compound forms hexagonal close-packed structure. What is the total number of voids in 0.5 mol of it? How many of these are tetrahedral voids?
Q4- A compound is formed by two elements M and N. The element N forms ccp and atoms of M occupy 1/3rd of tetrahedral voids. What is the formula of the compound?
A 135 mL sample of a 15.0 M ethylene glycol (rm C_2H_6O_2) solution is diluted to 1.50 L.What is the freezing point of the final solution.
A solution contains a mixture of sugars .59 mole fructose .50 mole glucose, .50 mole maltose, .50 mole sucrose dissolved in 1.00 kg of water. What are the freezing point and boiling points of the solution?
An Ideal gas is in a 375mL Container. Pressure inside is 1012 mmHg. Temp is 31.3 deg Celsius. How manly moles of Ideal Gas are there?
A cylindrical glass tube 15.0 cm in liength is filled with ethanol. The mass of ethanol needed to fill the tube is found to be 9.64g.
Explain how can you determine whether one of these two suspected compounds was identical to the unknown compound without using any for of spectroscopy.
Zach Thomas makes a buffer composed of 25 mL of 0.20 M acetic acid and 25 mL of 0.20 M sodium acetate. If he adds 10 mL of 0.20 M HCl to the solution, what is the pH of the solution after he adds the HCl? (pKa of acetic acid = 4.76)
A tank contains helium for filling balloons. It holds 6.75 L of He at 49.6 atm and 25.1 °C. What would be the volume of this helium at 1.66 atm and 10.7 °C
There are two carboxylic acid functions in 3-nitrophthalic acid. The pKa of the acid function is at the 2-position is approximately 2, whereas that at the 1- position is about 3. Which of the two is the more acidic and why
Write a balanced chemical equation for the neutralization reaction upon which this titration is based, and indicate clearly which atom is being protonated. Then, calculate the equilibrium constant for the neutralization reaction.
Describe at least four methods that could be used to attempt to separate the oil and water at home. Based on the four methods postulate which method would work better than the others.
Calculate the individual concentrations of C and of D in the following unknown mixture: Compound C: Absorbance at 365nm = 0.150 Absorbance at 470nm
Sodium bromate is used in a mixture which dissolves gold from its ores. Calculate the mass in grams of 4.68 mol of sodium bromate.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd