Chemistry, 13.09.2019 00:10 fonsworth5
An administrator in a very large company wants to estimate the mean level of nitrogen oxides (nox) emitted in the exhaust of a particular car model in their very large fleet of cars. historically, nitrogen oxide levels have been known to be normally distributed with a standard deviation of 0.15 g/ml. what is the parameter of interest that the administrator wants to estimate?
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What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?
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Chemistry, 22.06.2019 16:50
Answer asap need by wednesday morning calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 best answer will be brainliest
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Chemistry, 23.06.2019 00:30
An unknown insoluble substance displaced the water shown. it's mass is indicated on the triple beam balance. mass = a. 694 b. 693.5 c. 693.0 d.693.8
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Chemistry, 23.06.2019 04:20
The equation below shows the reaction of zinc with hydrochloric acid (hcl). zn (s) + 2 hcl (aq) β> zncl2 (aq) + h2 (g) what will happen if the concentration of hcl is decreased? a. more zncl2 will be produced. b. the reaction rate will slow down. c. the hydrochloric acid will become more acidic. d. the reaction will produce water instead of hydrogen gas.
Answers: 1
An administrator in a very large company wants to estimate the mean level of nitrogen oxides (nox) e...
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