Recent content by gradeaswimr

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    Kinetics Homework Help: N2O5 Decomposition @ 70°C

    http://www2.wwnorton.com/college/chemistry/gilbert/concepts/chapter14/ch14_3.htm#2
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    Acid-Base System: Identify Bases & Weaker Acid

    lets say you make apple pies and i like to pick out the apple slices from the pies. if i pick out the slices at the same rate you make the pies, we're at equilibrium. let's say someone gives me a bunch of apple slices. will you have to make more pies to attain equilibrium once more, or will i...
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    Equilibrium of H, OH, CrO4 and Cr2O7

    yes, H2O should not be present. corrected the coefficients? so you got hte correct expression?
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    Equilibrium of H, OH, CrO4 and Cr2O7

    right. in the reaction cC + dD <=> aA + bB : k = ([A]^a * [B]^b )/ ([C]^c * [D]^d) but i think you should double check your balanced equations to make sure that all your coefficients are correct. if they're flawed, your equilibrium expression will be flawed as well.
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    Trigonometry - Finding degrees of triangle

    no. your given 2 sides of triangle ARS find the 3rd side. then notice triangle ART. notice what you're given and determine your goal. :smile:
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    Stoichiometry Help: NaHC O3 & CaCO3 Data Table

    however much acetic acid used was how much reacted. base your stoich on the amount of acetic acid consumed and you should be fine. goodluck & goodnight
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    Stoichiometry Help: NaHC O3 & CaCO3 Data Table

    do you know what a limiting reagent is?
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    Stoichiometry Help: NaHC O3 & CaCO3 Data Table

    so you reacted each one with vinegar?
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    Stoichiometry Help: NaHC O3 & CaCO3 Data Table

    the grams...grams of what? converting to moles of what?
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    Stoichiometry Help: NaHC O3 & CaCO3 Data Table

    i'm confused. what exactly happened in the lab? did you react calcium carbonate and acetic acid? then wahts "NaHC O3...CaCO3"?
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    Stoichiometry Help: NaHC O3 & CaCO3 Data Table

    um...its late, I am tired, those numbers appear so random to me. show all your calculations? just check the tutorials. if you can convert something to moles, you can find basically anything.
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    Stoichiometry Help: NaHC O3 & CaCO3 Data Table

    read the sections called "molar ratios" and the one called "given grams get grams" - those seem like good tutorials http://dbhs.wvusd.k12.ca.us/webdocs/Stoichiometry/Stoichiometry.html
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    Stoichiometry Help: NaHC O3 & CaCO3 Data Table

    can you show the work with units cause its late and i got my own ap chem final tomorrow.
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