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A .500g unknown sample is

A .500g unknown sample is titrated with 40mL of .187M KMno4 by the following reaction:5Fe{2+} + MnO4{-1} + 8H{+1} -> 5Fe{3+} +
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2. asked by Julie
3. 426 views
a 2.500g sample of an unknown compound containing only C, H and O was burned in O2. The products were 4.776g of CO2 and 2.934g
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2. asked by Tc
3. 1,014 views
An unknown material absorbs 1,930 J of heat when it changes from 25 °C to 35°C. The sample weighs 500g. What is the specific
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2. asked by Katie
3. 518 views
if the ration of water drops to EDTA is 6.7 for the known sample and 10 for the unknown sample what is the concentration of the
1. 3 answers
2. asked by alex
3. 1,150 views
a distribution of scores has 6, but the value of the mean is unknown, a researcher plans to select a sample from the population
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2. asked by herry
3. 543 views
A 0.642 g sample of an unknown gas was collected over water at 25 C and 1.04 atm. The collection cylinder contained 151.3 mL of
1. 2 answers
2. asked by Anonymous
3. 1,993 views
a 1.32g sample on unknown containing KHP as a component was titrated with 22.48mL of 0.105 M NaOH to a pheolphthalein end point.
1. 1 answer
2. asked by Anonymous
3. 773 views
A 0.18 g sample of unknown was placed in a flask and dissolved in 125 mL of deionized water. A solution of HCl (0.13 M) was used
1. 1 answer
2. asked by Taylor
3. 588 views
A 0.12 g sample of unknown was placed in a flask and dissolved in 125 mL of deionized water. A solution of HCl (0.10 M) was used
1. 1 answer
2. asked by Stephanie
3. 576 views
Now if your lab partner determined that there were 1.157 x 1020 atoms of Mn in an unknown sample of KMnO4, how many milligrams
1. 1 answer
2. asked by Drew
3. 525 views