Why we are use 0.005M Sulphuric acid, in control of absorbance
performance test UV Spectrophotometer calibration
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Answer / manish
Because K2Cr2O7 is only stable in the solution pH below 2.0
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Answer / ramakrishna
Bcz K2Cr2O7 is easily dissolved in 0.005 M H2SO4 and stable in the solution PH below 2.0
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What is the formula for Tapdensity /
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Organic Chemistry 
