1/ Calculate the volume of 0.280-M NaOH solution needed to completely neutralize 27.4 mL of a 0.560-M...

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Chemistry

1/ Calculate the volume of 0.280-M NaOHsolution needed to completely neutralize 27.4 mLof a 0.560-M solution of themonoprotic acid HBr.
2/ To determine the molar mass of an organic acid, HA, wetitrate 1.047 g of HA with standardized NaOH.Calculate the molar mass of HA assuming the acid reacts with37.17 mL of 0.469 M NaOHaccording to the equation
HA(aq) + NaOH(aq) â†’ NaA(aq) + H₂O(â„“)
3/
2 NaBH₄(aq) + H₂SO₄(aq) â†’ 2H₂(g) + Na₂SO₄(aq) +B₂H₆(g)
What volume, in mL, of a 0.504 M solution ofNaBH₄ is required to produce 0.539 g ofB₂H₆? H₂SO₄ is presentin excess.
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3.7 Ratings (374 Votes)

1 calculate mole of HBrno of mole molarity volume ofsolution in literno of mole of HBr 0560 M 00274 L0015344 moleHBr react with NaaOH in equimolar proportion therefore See Answer

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