What is needed to calculate

  1. Calculate the energy needed to produce 10 moles of Cl2O7 using this balanced equation.2Cl +70+ 100kCal==2ClO7 please explain
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    2. lulu asked by lulu
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  2. Calculate the volume of 2.45 M NaI that would be needed to precipitate all of the Hg+2 ion from 185 mL of a 2.44 M Hg(NO3)2.AND
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    2. Marsha asked by Marsha
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  3. Can someone please check my work?Calculate the mass of (NH4)2S2O8 needed to prepare 250mL of a 0.100M solution. I got 5.705 g.
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    2. Rachel asked by Rachel
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  4. Tris is an abbreviation for tris (hydroxymethyl) aminomethane, which is a weak base. Calculate how many grams of tris
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    2. Cassandra asked by Cassandra
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  5. a) Calculate how many cm3 of 1.00 moldm-3 HCL are needed to decrease the pH of 1.00 dm3 of HCL by one unit. Ignore the small
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    2. Aaliyah asked by Aaliyah
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  6. Calculate the mass of NaOH needed to prepare 100ml of 0.20molar solution.B. Calculate the mass of solid KHP needed to react
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    2. Abraham asked by Abraham
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  7. a student needed 1000 ml of a 0.10 buffer of ph 4.0. calculate the amount of sodium acetate and acidic acid needed for this
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    2. bay asked by bay
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  8. for each quantity, decide whether circumference or area would be needed to calculate it. Explain or show your reasoningthe
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  9. Is there a formula to calculate the dimensions of the arcs on a flat piece of paper needed to form a parabolic dish?Say I was
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    2. Anonymous asked by Anonymous
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  10. A titration is performed by adding .600 M KOH to 40.0 mL of .800 M HCl.Calculate the pH before addition of any KOH. Calculate
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    2. Summer asked by Summer
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