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 calorimeter contains 27.0 grams of H2O at the temperature of 14.5 degree Celsius. When 1.40 grams of a substance that has a molar mass = 46.0 is mixed, it dissolves via the reaction and the temperature of the solution increases to 26.5 degree Celsius.Compute the enthalpy change, , for this reaction per mole of .
(Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 and 1.00 ] )
The density of an unknown substance was determined by adding a weighed piece to a graduated cylinder containing 37.3 mL of water. After the substance was submerged the water level was measured at 46.2 mL. The substance weighed 100.0 g. What was it..
how many grams of glucose must be dissolved in 563 greams of ethanol to prepoare a 2.40 x 10 -2 m solution?
Briefly comment on whether or not this experiment shows that you can successfully model the packing of atoms in a liquid by randomly packing
there is a difference between the average distance r between the electron and the nuckeus and the most probable distance between the electron and the nucleus. (a) derive the expression for the average distance r between the electron and the nucleu..
A 4.78-g sample of aluminum completely reacts with oxygen to form 6.67 g of aluminum oxide. Calculate the mass percent composition of aluminum in aluminum oxide
At 25ºC the solubility product constant, Ksp, for magnesium phosphate, Mg3(PO4)2, is 1.0´10-24. The solubility product constant for magnesium fluoride, MgF2, is 7.0´10-11.
What is the pseudoformula of ascorbic acid, given that ascorbic acid contains 3.41 mol of carbon, 4.53 mol of hydrogen, and 3.41 mol of oxygen
A solution is prepared by condensing a 4.00L of a gas at 27 degress and 748 mmHG pressure into 58g of benzene. calculate the freezing point of the solution.
stable conformation, CH3 at 0,120d, H at 240, then on the other side has H at 0, 120, CH3 at 240d?? and is this a gauche conformation?
Specify the number of protons, neutrons, and electrons in the neutral atom iron-56. Enter your answers as integers separated by commas. The ion has _____ protons and _____ electrons
Examine the structures of the following compounds. What functional groups can you identify within the compounds? (They may have more than one.) What structural features do many of these compounds have in common?
That concentration (g / ml) should be prepared with a substance weight of 200g/mol melocular to give an absorbance of 0.8? Assume that the substance has a molar absorbance coefficient of 16,000 and that the cell has a light path length of 1 cm.
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