Answers: 1
Mathematics, 21.06.2019 14:00
(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?
Answers: 2
Mathematics, 21.06.2019 16:30
Read the following two statements. then use the law of syllogism to draw a conclusion. if the tv is too loud, then it will give me a headache. if i have a headache, then i will have to rest.
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Mathematics, 21.06.2019 20:30
Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?
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Mathematics, 21.06.2019 21:50
Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?
Answers: 1
1.) -2(6 - 2x) = 4(-3 + x) 2.) 5 - 1(2x + 3) = -2(4 + x)...
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