Kimya Ödev Yardımı

QuetionAI‘nin kimya problemi çözücüsü, temel kimyasal reaksiyonları ve denklemleri kullanıcılar için gerçek zamanlı olarak özetleyebilen ve zayıf bir temele sahip öğrencilerin bile kimyada kolayca uzmanlaşabilmesi için güçlü bir öğrenme sistemine sahip olan bir ortaokul kimya ders aracıdır.

Artık periyodik tablonun temel özellikleri hakkında endişelenmenize gerek yok. Burada her elemente karşılık gelen kimyasal reaksiyonlara ve reaksiyon prensiplerine kolaylıkla ulaşabilirsiniz. Moleküllerin ve atomların orijinal yapısını, görülebilen makroskobik olaylardan çıkarmak, her zaman savunduğumuz bir kimya araştırma tekniğidir.

10-Which of the following(s) is/are correct? I- Doubling the column's length increases resolution by a factor of 1.41. II- In GC, solute molecules do not interact with mobile phase III- The purpose of split ratio in split injection mode is to control the amount of sample injected onto the column. A) I,II and III B) Only II C) Iand II D) Iand III E) II and III

9- Which of the following is a concentration dependent GC detector? A) Flame Ionization B) Nitrogen - Phosphorus C) Flame Photometric D)Photo-Tonization E) Hall Electrolytic Conductivity

1. What should be the minutaum distribution coefficient that permits removal of 65% of a solute from 75 mL aqucous solution when extracted with 3 portions of 25 ml.of toluene. A) 0.16 D) 046 C) 1.26 D) 0.92 E) 1.62

of the following is a concentration dependent GC detector? A) Flame Ionization B) Nitrogen-Phosphorus C)Flame Photomethic D) Photo-Tonization B) Hall Electrolytic Conductivity 10. Which of the following(3)is/are correct? 1. Doubling the column's length increases resolution by a factor of 1.41. II- In GC, solute molecules do not interact with mobile phase III- The purpose of split ratio in split injection mode is to control the amount of sample injected onto the column. A) I,II and III B) Only II C) Iand II D) Iand III E) II and III 11-Which of the following(s) is' are correct for liquid chromatography? 1- In a chromatography.Eluent is a solvent used to carry the components of a mixture through a stationary phase II- In Isocratic elution the composition of the mobile phase is changed continuously or in a series of steps. III-In a reversed -phase HPLC, the stationary phase is composed of hydrophobic packing material while in a normal -phase HPLC the stationary phase is composed of hydrophilic packing material. A) 1, II and III B) Iand II C) I and III D) II and III E) Only III 12-The molar absorptivity for the complex formed between bismuth (III) and thiourea 9.32times 10^3L/mol.cm at 470 nm. Calculate the molar concentration for the complex if the absorbance is 0.357 when the measurements are made in 3.00-cm cell. A) 1.60times 10^-5M B) 3.84times 10^-5M C) 4.71times 10^-5M D) 2.46times 10^-5M E) 1.28times 10^-5M

NEON IS A qquad A. metal B. metalloid C non-metal D. none of these