Water has a surface tension of about 72 erg/cm2. When you add liquid detergent (dish soap) to water, the surface tension drops to 26 erg/cm2. (a) Draw a possible structure and orientation for a detergent molecule at an air/water interface. (b) Estimate the pressure inside soap bubbles of 10 mm, 0.1 mm and 0.001 mm diameter. (c) Calculate the minimum energy (based on creating new surface) to form 1 liter of pure water drops of sizes 10 mm, 0.1 mm and 0.001 mm diameter.
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Chemistry, 22.06.2019 10:30, zayam1626
Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space
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Chemistry, 23.06.2019 00:20, cmflores3245
4. propanol and isopropanol are isomers. this means that they have a) the same molecular formula but different chemical properties. b) different molecular formulas but the same chemical properties. c) the same molecular formula and the same chemical properties. d) the same molecular formula but represent different states of the compound
Answers: 3
Chemistry, 23.06.2019 07:20, prettydoll19
Which statement explains which component is likely to be more powerful in explaining a scientific phenomenon? a) component c, because a theory is often passed on possibility and not certainty b) component d, because a hypothesis is often based on possibility not certainty c) component c, because the ability to explain several occurrences in the natural world is a characteristic of a hypothesis d) component d, because the ability to explain several occurrences in the natural world is a characteristic of a theory
Answers: 3
Water has a surface tension of about 72 erg/cm2. When you add liquid detergent (dish soap) to water,...
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