What is the weight percent, with respect to RbCl, of a solution if you mix 20.452 g of RbCl in 275.00 mL of water 31^{o}C? The density of water is 0.9954 g/cm^{3 }at 31^{o}C.

A. 6.95%

B. 7.47%

C. 6.89%

D. 7.40%

E. 7.44%

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