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Analyte titrant endpoint indicator solution solute
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__________ is a homogeneous mixture composed of two or more substances.
__________ is a substance that is dissolved in another substance, known as solvent. These two are present in a solution.
__________ is a solution of the substance whose concentration is unknown and sought in the analysis.
__________ is a solution in which the concentration of a solute is precisely known.
__________ is the point at which the titration is complete, as determined by an indicator.
__________ is a substance used to show the presence of a chemical substance by its color.
2. Translate the sentences into English without using a dictionary.
1. Стандартный раствор — это раствор известной концентрации. 2. Во время титрования титрант прибавляют к раствору неизвестной концентрации для достижения точки эквивалентности. 3. Выбор индикатора может стать ключом к успешному титрованию. 4. В широком смысле титрование — это определение концентрации вещества в растворе. 5. Кислотно-основное титрование основано на реакции нейтрализации.
3. Read the following text about acid-base titration and unscramble the letters in the brackets to find the correct word. Translate the text.
Acid-base titrations are usually used to find the a_ _______1 (tamnuo) of a known acidic or basic substance through acid-base reactions. The a ________2 (lanatey) is the solution with an unknown m_ _______3 (larmotiy). The titrant is the solution with a known molarity that will react with the analyte.
The analyte is prepared by dissolving the substance being studied into a s_ _______4 (nosotiul). The solution is usually placed in a f ________5 (skalf) for titration. A small amount of i_ _______6 (candiroti) is then added into the flask along with the analyte. The reagent is usually placed in a b_ _______7 (terubet) and slowly added to the analyte and indicator mixture. The amount of reagent used is recorded when the indicator causes a change in the color of the solution.