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1. What are the differences in preparing soap and detergent?
2. What will be the best thing to use in handwashing and dishwashing? Is it soap or detergent?
Why?
3. What will be the best thing to use in cleaning bathroom and countertops? Is it soap or
detergent? Why?
4. Why does the local government prohibit people living in the barrios to launder or to do
laundry in nearby rivers and lakes?
5. What are the tips you can give to make laundering more effective?
6. Why were you able to get a paper clip to float in water?
7. What happened to the surface tension when we added liquid soap?
8. How does surface tension affect the cleaning result of soap and detergent?
9. How do surfactants help in cleaning process?
11. Which is effective in removing oily stains in tap water and distilled water? Is it soap or
detergent?
12. How does the hardness of water affect the cleaning performance of soap and detergent?
13. How do builders help in the cleaning process?
I want my assignment answer
Consider the element Uranium, U. Determine which isotopes are naturally occurring. Look up the masses of each isotope in amu, and the natural abundances. Calculate the average atomic weight, and compare this to what you find in the periodic table. Given the atomic mass numbers of the isotopes, is the atomic mass number consistent with these atomic mass numbers? Why or why not? If it seems inconsistent, can you explain this apparent inconsistency
A pycnometer, nominally 10 ml, was found to have a volume of 9.9872 ml, when filled
exactly to the top of the capillary in the stopper. The pycnometer was filled with benzene
(an organic liquid), and weighed. The mass of the filled pycnometer was found to be
21.8743 g. The pycnometer empty was weighed, and found to have a mass of 13.1455 g.
Calculate the density of the benzene. Compare this to the density of benzene at 25.0 0C
that you find in the literature
how many nitrogen molecules are in a box measuring 9.00cm H x 21.00cm L x 14.50cm W
Explain why carbon monoxide is sometimes a product of an alkane combustion
reaction.
You need to make an aqueous solution of 0.195 M barium bromide for an experiment in lab, using a 500 mL volumetric flask. How much solid barium bromide should you add?
If a = 0.244 atm-L2/mole2,and b = 0.0266L/mole, find the weight of H2 stored in a 100-cm3 cylindrical tank at 100oC and 100 atm ( or 10, 132.5 KPa) by using (a) the ideal gas equation (b) the van der Waals equation.
** to solve for the mass of H2, use the successive approximation method
A 5.0 L ballon has a pressure of 1.0 atm at sea level, where the temperature is 28°C. The balloon was let loose and ascended to a height in the temperature where the temperature is 11°C. What will be the volume of the balloon if the atmospheric pressure at the new altitude is 0.65 atm?
draw the tripeptide efh in its predominant ionization state at ph 5
