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Question 16 Not complete Points out of 1.00 To make 500 ml 10mM HEPES buffer, you need grams of HEPES. The molecular weight o
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Question 18 Not complete Points out of 1.00 A 25μι PCR reaction contains 0.511 DMSO (DMSO is an organic solvent), the concent
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Question 21 Not complete Points out of 1.00 grams of hydroxyurea. M.W. of hydroxyurea is To make 5ml of 2M hydroxyurea, you n
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Answer #1

Ans 16 :

Molarity = mol / volume (L)

putting values :

10 x 10-3 = n / 0.500

n = 0.005 mol

Mass of HEPES = mol x molar mas

= 0.500 mol x 238.3 g/mol

= 1.19 grams

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