A helium-filled weather balloon is held at ground level. The volume of the balloon is 4800 m. The pressure of the helium is 98 kPa.
Ihe balloon is released and rises to a height where the volume of the balloon is 7200 m.
(0 Calculate the new pressure of the helium. Assume that the temperature stays constant.
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pressure =
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Calculate the ratio of h+ ions to oh– ions at a ph = 6. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 6. are they the same? why or why not? record your explanation in table a. what is the concentration of h+ ions at a ph = 6? mol/l what is the concentration of oh– ions at a ph = 6? mol/l what is the ratio of h+ ions to oh– ions at a ph = 6? : 1

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

What is the name for the remnant of an asymptotic giant that has lost its shells? black dwarf white dwarf yellow giant black hole