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how do I caluclate (H3O+)

  1. how do I caluclate (H3O+) in a solution if the PH is the following 1.81
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    2. dada78 asked by dada78
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  2. How do i caluclate the roots of the equation for:x^2-3x-12=0 (x^2-4)=0 (x+3)=0 x^2=4 x+3+0 x=4 x=-3 Am i on the right path or
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    2. Mary asked by Mary
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  3. What is the final concentration of 35.7mL of 52.0% m/m solution that is diluted to 65.9ml?i am not sure how to caluclate this...
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    2. danny asked by danny
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  4. Caluclate the total mass of copper needed to react with 100g of iodine to make 512g of copper(ii) iodide.PLEASE work it out for
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    2. naseeb asked by naseeb
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  5. I wondered if someone would check my work concerning an Atwood's Machine. (I am led to believe the answers for these two
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    2. Miaow asked by Miaow
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  6. a student kicks a 2 kg soccer ball with a force of 50 N. Caluclate the acceleration of the soccer ball. Please show your work
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    2. Exoctic_DrEaMs asked by Exoctic_DrEaMs
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  7. Nitrogen Gas Occupy A Volume Of 413 At Pressure Of 217 Mmhg Caluclate Its New Volume When The Volume Increases To 612 Mmhg
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    2. Aminu Dahiru asked by Aminu Dahiru
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  8. a force of 3.5 N is applied to a spring which obeys Hooke's law and produces and extension of 0.07m.calculate the spring
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    2. ablin asked by ablin
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  9. measurments sociologists use to calulate prejudicemeasurments socoligist use to caluclate prejudice
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    2. Cary asked by Cary
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  10. Caluclate the delta H for this reaction using standard enthalpies of formation. (The standard enthalpy of formation of liquid
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    2. Ashley asked by Ashley
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