Friday
May 24, 2013

# Posts by Faith

Total # Posts: 161

chemistry
how can H2O and ethanol be seperated

chemistry
how can sand and iodine crystals be seperated

chemistry
state what will be observed on heating Pbco^3

MATH ( ms. sue)
i understand you divide 56 by 15 but it comes out to 3.733333333 and i don't understand how to convert that into 3 11/15

math HELP
How would I change the improper fraction 56/15 to mixed number in lowest terms? the problem is 2 2/3 x 1 2/5 Ive figured out how to get to 56/15 but get stuck finishing it... MULTIPLYING WITH MIXED NUMBERS

Math
bu ne lan boyle

chemistry
why is AgNO3 stored in an amber bottle

Chemistry
what is the concentration of hcl when 55 ml of this hcl solution neutralize 15ml of .9m ca(oh)2

chemistry
6.0g of impure and hydrous Na2SO4 were made up to 1dm^3 of solution neutralize 22.20cm^3 of 0.1mol/dm^3 of HCL.calculate: a)concentration of Na2CO3 in mol/dm^3. b)concentration of Na2CO3 in gram/dm^3. c)percentage purity in carbon.

chemistry
6.0g of impure and hydrous Na2SO4 were made up to 1dm^3 of solution neutralize 22.20cm^3 of 0.1mol/dm^3 of HCL.calculate: a)concentration of Na2CO3 in mol/dm^3. b)concentration of Na2CO3 in gram/dm^3. c)percentage purity in carbon.

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