?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=PENGARUH+HNO3DAN+NaOH+PADA+ANALISIS+Cr(III)%0D%0AMENGGUNAKAN+ASAM+TANAT+SECARA+SPEKTROFOTOMETRI%0D%0AULTRAUNGU-TAMPAK&rft.creator=+MARDIAN+BAGUS+SAPUTRA+%2C+1117011031&rft.subject=+&rft.subject=QD+Chemistry&rft.description=Telah+dilakukan+penelitian+pengaruh+HNO3+dan+NaOH+pada+analisis+Cr(III)%0D%0Amenggunakan+asam+tanat+secara+spektrofotometri+Ultraungu-Tampak.+Tujuan%0D%0Apenelitian+ini+dilakukan+perbandingan+terhadap+konsentrasi+optimum+pada%0D%0Apengaruh+HNO3+dan+NaOH%2C+waktu+kestabilan+dan+pengaruh+ion-ion+pengganggu.%0D%0AHasil+penelitian+diperoleh+konsentrasi+optimum+pada+pengaruh+HNO3+adalah+4%0D%0AmM%2C+waktu+yang+diperlukan+untuk+mencapai+kestabilan+adalah+setelah+menit+ke+5%2C%0D%0Apada+pengaruh+NaOH+terhadap+kompleks+Cr(III)+dengan+asam+tanat+konsentrasi%0D%0Aoptimum+adalah+5+mM+dan+waktu+mencapai+kestabilan+adalah+setelah+menit+ke+20.%0D%0ATidak+terjadi+gangguan+pada+konsentrasi+ion+Ni(II)+%E2%89%A54+ppm%2C+ion+Mo(II)+%E2%89%A54+ppm%0D%0Adan+Ca(II)+%E2%89%A410+ppm+pada+pengaruh+HNO3.+Pada+pengaruh+NaOH+hasil+yang%0D%0Adidapatkan+adalah+Ni(II)+%3C2+ppm%2C+Mo(II)+%E2%89%A410+ppm+dan+Ca(II)+%E2%89%A410.%0D%0AKata+kunci+%3A+HNO3%2C+NaOH%2C+Cr(III)%2C+asam+tanat%2C+Spektrofotometer+Ultraungu-%0D%0ATampak.%0D%0A%0D%0AABSTRACT%0D%0A%0D%0AThis+study+was+carried+out+to+investigate+HNO3+and+NaOH+effection+of+analysing%0D%0ACr(III)+using+tannic+acid+with+ultraviolet-visible+spectrophotometry.+The+main%0D%0Apurpose+in+this+study+is+to+compare+the+effect+of+concentrations+of+HNO3+and%0D%0ANaOH+on+the+stability+and+the+presence+of+interferring+ions.+The+results+showed%0D%0Athe+optimum+concentration+of+HNO3+is+4+mM%2C+resulted+in+5+minutes+duration+of%0D%0Atime+to+reach+the+stable+complex%2C+on+the+other+hand+the+concentration+of+NaOH%0D%0Atoward+Cr(III)+using+tannic+acid+is+5+mM+that+was+resulted+in+20+minutes.+No%0D%0Ainterfrence+was+observed+in+the+presence+of+Ni(II)+%E2%89%A54+ppm%2C+Mo(II)+%E2%89%A54+ppm+and%0D%0ACa(II)+%E2%89%A410+ppm%2C+with+the+use+of+HNO3.+For+NaOH%2C+the+same+results+were%0D%0Aobtained+for+Ni(II)+%3C2+ppm%2C+Mo(II)+%E2%89%A410+ppm+and+Ca(II)+%E2%89%A410+ppm.%0D%0AKey+word+%3A+HNO3%2C+NaOH%2C+Cr(III)%2C+tannic+acid%2C+Spectrophotometry.&rft.publisher=FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+&rft.date=2016-06-23&rft.type=Skripsi&rft.type=NonPeerReviewed&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F23164%2F1%2FABSTRACT%2520%2528ABSTRAK%2529.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F23164%2F2%2FSKRIPSI%2520FULL.pdf&rft.format=text&rft.identifier=http%3A%2F%2Fdigilib.unila.ac.id%2F23164%2F3%2FSKRIPSI%2520TANPA%2520BAB%2520PEMBAHASAN.pdf&rft.identifier=+++MARDIAN+BAGUS+SAPUTRA+%2C+1117011031++(2016)+PENGARUH+HNO3DAN+NaOH+PADA+ANALISIS+Cr(III)+MENGGUNAKAN+ASAM+TANAT+SECARA+SPEKTROFOTOMETRI+ULTRAUNGU-TAMPAK.++FAKULTAS+MATEMATIKA+DAN+ILMU+PENGETAHUAN+ALAM+%2C+UNIVERSITAS+LAMPUNG.+++++&rft.relation=http%3A%2F%2Fdigilib.unila.ac.id%2F23164%2F