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Calculate the heat required to melt 27.1 g of solid methanol at its melting point.
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If 30.0 mL of 0.500 M KOH are needed to neutralize 10.0mLof HCl of an unknown concentration, what is the molarity of HCl?
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at STP, 1.5 L of a gas weighs 2.71 g. Give the molar mass of the gas
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A student placed 18.5 of glucose () in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100.- mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 35.0- sample of this...
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oxidation number of p in po43-
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When 1*10-5 mole of NaOH is added to enough water to make 1.0 L of solution, the resulting solution has a pH of: a. 5 b. 6 c. 7 d. 8 e. 9
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poem about the types of acids and bases
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How many moles of NBS are consumed for every one mole of ascorbic acid reacted?
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The decomposition of nitric oxide to N2 and O2 is second order with rate constant of 0.0796 M-1s-1 at 737 degrees C and 0.0815 M-1s-1 at 947 degrees C. Calculate the activation energy for the reaction. Could you show the workings please as I am having difficulty with this one.
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CH4 WHAT IS IT ? AND HOW MANY ISOMERS DOES IT HAVE?
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- A. AgNo3 (aq) + NaI (aq) --> AgI (s) + NaNO3 (aq)
- B. S8(s) + 8O2 (g) --> 8SO2(g)
- C. Na3PO4 (s) + 2H2O (l) --> H2 (g) + 2NaOH (aq)
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