Chemistry, 30.11.2021 21:50 blueyish6422
What is the pH of a solution of H2SO4 that has [H3O+] = 5.45 ร 10โ5 M? Round to the nearest hundredth. (I don't know why they put this in middle school)
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The lewis diagrams for magnesium and fluorine are shown below. what is the correct chemical formula for magnesium fluoride? a. mgf b. mg2f c. mgf2 d. mg2f3
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How does science use models to gain a better understanding of concepts?
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In a laboratory determination of the atomic weight of tin, a sample of tin is weighed in a crucible. nitric acid is added, and the reaction proceeds to give a hydrated tin(iv)oxide plus no2and h2o. the hydrated tin(iv)oxide is then heated strongly and reacts as follows: sno2.xh2o(s)๏ฎsno2(s)+ xh2o(g)the sno2is finally cooled and weighed in the crucible. explain the effect on the calculated atomic weight of tin that would result from each of the following experimental errors: (a)considerable spattering occurs when the nitric acid is added to the tin.(b)the hydrated tin(iv)oxide is not heated sufficiently to change it completely to tin oxide.
Answers: 2
What is the pH of a solution of H2SO4 that has [H3O+] = 5.45 ร 10โ5 M? Round to the nearest hundredt...
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