A student does an experiment to determine the specific heat of iron metal. The student repeats the experiment 5 times and gets the following values for specific heat (all in J/g oC): 0.463, 0.449, 0.451, 0.427, and 0.480. The accepted value for the specific heat of iron is 0.450 J/g°C. Required:
a. Calculate the student's percent error. Does the percent error evaluate the accuracy or the precision of the student's measurements? Explain
b. Calculate the standard deviation for the student's data set. Does the standard deviation evaluate the accuracy or the precision of the student's measurements? Explain.

the answer is 1260

you spend 7 hours in school for 1 school day with 5 school days in 1 school week with 36 school weeks in a school year.

7*5*36= 1260 it's all about multiplying

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.