Calculate the H positive from the pH equation: pH equals -log (H positive). This would be 10 to the -6.49. Let's call the acid HA. To calculate Ka in this equation, Ka equals H positive times A- over HA. HA is going to be the 0 0121. So, Ka=(10^-6.49)^2/0.0121. This equals 1.05*10^-13/0.0121. Ka then equals 8.65*10^-12.
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I' really don't know I'm sorry
8 moles I think I’m not sure
beryllium, magnesium, strontium,barium<span>, and </span><span>radium. </span>
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Is it prescribe to you?If so than yes if not then no need to
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