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Why is it necessary to dissolve or rehydrate agar in freshly prepared distilled water?
Wiki User
∙ 12y ago
Simple answer is that the sample is soluble in water.
The primary reason to use distilled water is to maintain the purity of the sample. Municipal water is treated with chlorine to prevent bacterial growth, plus the water picks up traces of metal from the pipes, valves and tanks it travels through on the way to your faucet.
Wiki User
∙ 15y ago
Wiki User
∙ 12y agosince agar medium is used for development of microbial colonies, freshly prepared distilled water is used to prevent contamination or formation of colonies of other unwanted microbes.
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To test how fertilizer affects aquatic animals a student prepared four identical containers with water fleas. The student then added different amounts of fertilizer mixed with distilled water to three?
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How do you prepare 100 mM Na carbonate bicarbonate buffer PH 9?
Insufficient information. The desired molarity or normality of the solution is required. For 100 mL of 1.0 molar sodium carbonate dissolve 10.59 grams of anhydrous sodium carbonate in 100 mL water. Insufficient information. The desired molarity or normality of the solution is required. For 100 mL of 1.0 molar sodium carbonate dissolve 10.59 grams of anhydrous sodium carbonate in 100 mL water.
How is a 10 percent - glucose in water - solution prepared?
Dissolve 100 g glucose in 1 L distilled water (or 10 g glucose in 100 mL disitlled water).
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Distilled water, or de-ionised water would be used in a laboratory.
How is water prepared in the lab?
Distilled water, or de-ionised water would be used in a laboratory.
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First take 170g of NH3 . Then dissolve in 1L of water
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How do you prepared of 0.5 molar NaCl solution?
Dissolve 29,22 g NaCl p.a. in 1 L demineralized water at 20 0C, in a volumetric flask.
