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if you evaluated 5 solvents as possible recrystallization solvents do you think it is generally true that the solvent
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predict a melting point if you combined and mixed 10 mg each of the three reference samples for solubility naphthalene
in carrying out the rst standardization in this experiment a student used 05899 g of potassium hydrogen phthalate khp
how do you find wave length of light emitted by hydrogen
prepare 25ml 1m sodium acetate-acetic acid buffer solution both 05m note you will be provided with a 5m acetic acid
suppose it is a hot summer day 1040 of and you have left a can of hairspray outside so the gas within it is now at the
1 select all of the factors which affect the rates of chemical reactionstemperaturecatalystsrelative energy of the
the light-emitting decay of excited mercury atoms is first-order with a rate constant of 165e6 1s a sample
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prelab assignment for lab - buffer capacity1 describe what a buffer consists of and what purpose it serves2 a student
1 in procedure ii of part 2 of the lab you will add the correct ratio of water to ice so that the final temperature of
1 using the ph measurements classify your substances as acids bases or neutral strong or weak2 what is a buffer3 what
in a constant-pressure calorimeter 600 ml of 0330 m baoh2 was added to 600 ml of 0660 m hcl the reaction caused the
if the heat of combustion for a specific compound is -15000 kjmol and its molar mass is 3669 gmol how many grams of
the following reaction is used to prepare iodine2nai s 2h2so4 aq mno2 ----------gt na2so4 aq mnso4 i2 g 2h2o iwhat
consider the following reaction 2 c5h6harrc10h12c5h6 is placed in a container and the concentration is monitored over
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gallium metal reacts with dioxygen to produce gallium oxide how many grams of o2 are required to react completely with
givenkspag2cro4 12times10-12kspbacro4 21times10-10for a solution which is initially 0005 m in ba2 and 0005 m in ag it
consider the transitions involving only the n1 through n5 energy levels of the bohr model of a hydrogen atom photons of
a soft-drink bottling plant discharges a wastewater with a dissolved solids concentration of 10000 mgl nacl at a rate
chromium metal will react with oxygen gas to produce chromiumiii oxide molar mass 1520 gmol according to the equation