You need to prepare 1L of a 5×TE stock solution (1×TE buffer:10mM Tris,1mM EDTA).How much of Tris you need? How many ml of the 0.5 EDTA stock solution do you need?
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You need to prepare 1L of a 5×TE stock solution (1×TE buffer:10mM Tris,1mM EDTA).How much of Tris you need? How many ml of the 0.5 EDTA stock solution do you need?
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- What would be the working stock concentration (in molarity) if you diluted 250 uL of a stock concentration of 10 uM in a total volume of 1 mL?A 500 mL sample of a 0.100 M formate buffer, pH 3.75, is treated with 5 mL of 1.00 M KOH. What is the pH following this addition?How much sodium formate (HCOONa, 68.0069 g/mol) do you need to add to 400. mL of 1.00 M formic acid for a pH 3.500 buffer. Ka = 1.77 x 10¯4
- If a pharmacist needs to prepare a bacterial suspension with a concentration of 2.4x10^2 cfu using 1 mL of 2.4 x 10^4 bacterial suspension, what size of volumetric flask will she/he be needing?50X TBE is 87 mM Tris-borate and 4 mM EDTA at pH 8.3. What is the molarity of each of the chemicals in 1X TBE buffer?A patient is prescribed 15mmol of potassium chloride injection. The ampoule contains 20mmol in 10ml. What volume of potassium chloride (ml) is required? units – ml
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- You have on hand atropine 0.4 mg/mL. You need to administer atropine 0.4 mg IM. How many milliliters will you prepare? Fill in the blanks.If 4 mL of 1 M NaOH is added to 100 mL buffer, would it still be a usable buffer according to the conventions? Explain why or why not.439 mL of 0.270 M hydrochloric acid is exactly neutralized with 0.920 M potassium hydroxide solution. What volume of base solution is required?