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!
A sample of iron has a mass of 257.0 lb and a volume of 0.523 ft3. What is its specific gravity? and What are the units of specific gravity?
The giant muscle protein titin is a roughly 30,000 amino acid long filament which plays a number of important roles in muscle contraction and elasticity. The I-band region of titin, largely composed of immunoglobulin-like (Ig) domains, is believed to be responsible for the molecule's extensibility and passive elasticity. The Ig domains are observed to unfold one by one; using molecular force microscopy, the force needed to unfold a single titin domain can be measured. Single domains unfold at an applied force of 1000 pN, and extend by a length of 26 nm. Interestingly, the domains don't refold until the applied force is lowered, to about 100 pN. (a)What is the work done in unfolding a single titin domain, per molecule? (b)!What is the energy of unfolding per mole? (c) If a single folding/unfolding cycle is done on the molecule, what is the net work done on the system? If the system is kept at constant temperature, what becomes of the energy in this work?
Arrange the following elements in order of increasing ionization energy, and explain how you know the order
A 150 -g sample of water is cooled from 30 degrees C to 15 degrees C, thereby losing approximately 9420 J of heat. What is the change in E in J.
Draw Lewis dot structure and predict molecular geometry - Show the Lewis structures of the following molecules and then predict their geometry.
Which corresponds to approximately 2.65 * 104 mol of electrons at the voltage of a fuel cell and calculate how much heat energy is absorbed?
Which halide has he lowest boiling point? Explain your choices. (CH3)2CH2Br vs CH3CH2CH2Br c. Which is a better nucleophile? Explain our choice.
How many seconds are required to produce 4.94 mg of chromium metal from an acidic solution of potassium dichromate, using a current of 0.234 A?
A 20.0-mL sample of 0.800 M HBr solution is titrated with 0.800 M NaOH solution. Calculate the pH of the solution after the following volumes of base have been added.
An experiment requires 44.0 g of ethylene glycol, a liquid whose density is 1.114 g/mL. Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?
Calculate the heat given off when 177 g of copper cools from 155.0 Celsius to 23.0 Celsius. The specific heat capacity of copper is .385 J/g C
A sample of gas occupies 10.5 L at 600 torr and 50C. What volume will it occupy at STP?
Petroleum consumption in the US in 1990 supplied about 34.6E15 kJ of energy. Of this quantity, about 14.3E15 kJ was supplied by foreign sources.
Isothermal Pressure Increase Prediction, Estimate the pressure increase needed to decrease isothermally by 1% the volume of
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