What is the total energy
What is the total energy, in kJ, needed to raise 20 g of CH4O (methanol) from - 120 °C to 100 °C? Show your work.
(Change in Hvap=37.4 kJ/mol, Change in Hfus=3.18 kJ/mol, C CH4O(s)=68.39 J/mol, C CH4O(l)=81.56 J/mol, C Ch4O(g)= 44.06 J/mol)
Now Priced at $5 (50% Discount)
Recommended (93%)
Rated (4.5/5)
A solution is prepared by diluting 225 mL of 0.1885 M aluminum sulfate solution with water to a final volume of 1.450 L. Calculate the number of moles of aluminum sulfate before dilution.
or a certain reaction, kc=2.2*10^_4 and kf=0.284 M^-2 *s^-1. Calculate the value of the reverse rate constant, kf, given that the reverse reaction is of the same molecularity as the forward reaction.
Nee High and Low Jack are partners in an accounting firm and share net income and loss equally. High's beginning partnership capital balance for the current year is $285,000, and Jack's beginning partnership capital balance for the current year
Assuming each quadrant of the pizza to be the same, find the center of mass of the uneaten pizza above the axis (that is, the portion of the pizza in the second quadrant). Find the -coordinate.
If the vial weights 185.56 g when filled with liquid mercury (d=13.53 g/cm^3), what is its volume? How much would the vial weight if it were filled with water (d=0.997 g/cm^3 at 25 C)?
What is the freezing depression if .25 moles of sodium chloride was dissolved in 350ml of water?
A transformer connected to a 120-V (rms) ac line is to supply 12. V (rms) to a portable electronic device. The total equivalent resistance of the system is 5.0 Ohm. What should the ratio of primary to secondary turns of the transformer be?
Compute the variable overhead rate and efficiency variances. What relation can you see between this efficiency variance and the labor efficiency variance?
1943902
Questions Asked
3,689
Active Tutors
1417857
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
A spider takes advantage of the shape of tree limbs to build a web. The tree is neither negatively nor positively impacted.
A certain animal lives in the shallow ocean water, just off the coast. It spends its whole time drifting along in the current, where it can use
The transgenic camelina plants offer several advantages: camelina has a relatively short life cycle and good resilience to abiotic stress,
Question: The plasma membrane evagination and subsequent bulk movement of of substances out of the cell is called?
The knowledge gained from studying transgenic Strongyloides species can be pivotal in finding novel targets for anti-parasitic treatments.
There are many advantages to having a transgenic Strongyloides species. This is a great model organism because it is very easy to culture
Describe the five common steps of a signal-transduction cascade and explain how each contributes to the specificity and amplification of cellular responses