Abridge is made with segments of concrete 91 m long (at the original temperature). if the linear expansion coefficient for concrete is 1.2 × 10−5(◦c)−1, how much spacing is needed to allow for expansion for an increase in temperature of 56◦f? answer in units of cm.

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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