How Many Moles of Ca(NO₃)₂ Must Be Added to 1 $\times$

question 92

Multiple Choice

How many moles of Ca(NO₃) ₂ must be added to 1.0 L of a 0.182 M KF solution to begin precipitation of CaF₂? For CaF₂,K_sp = 4.0 $\times$ 10^-11.

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Definitions:

Ti Plasmid

A plasmid found in the bacterium Agrobacterium tumefaciens, used in genetic engineering to transfer genes to plant cells.

Agrobacterium Tumefaciens

A species of bacteria that is known for its ability to transfer DNA to plants, causing plant tumors (galls). It is used in genetic engineering to create genetically modified plants.

Complementary Nucleotide Sequences

refer to sequences of DNA or RNA where each nucleotide is matched by a specific partner: adenine with thymine (or uracil in RNA) and cytosine with guanine.

Cloned Genes

Refers to copies of a gene that have been produced identical to the original sequence, often used for research or genetic modification.