A compound has a pKa of 7.4. To 100 mL of a 1.0 M solution of this compound at pH 8.0 is added 30 mL of 1.0 M hydrochloric acid. The resulting solution is pH:

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#Question id: 14965

#XL - S Microbiology

An exotoxin is a toxin secreted by bacteria. It can cause damage to the host by destroying cells or disrupting normal cellular metabolism. They are highly potent and can cause major damage to the host. Exotoxins may be secreted by bacteria which

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#Question id: 19664

#XL - P Chemistry

To get carboxylic acids directly from alcohol, which of the following oxidising agents is used?

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#Question id: 5571

#XL - T Zoology

Environmental cues that influence the timing of reproduction generally do so by ________.

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#Question id: 12789

#XL - R Botany

Which of the following terms encompasses all of the others?

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#Question id: 10509

#XL - R Botany

A different type of mechanical obstacle to herbivory is provided by mineral crystals that are present in many plant species, such as silica crystals known as