Please help with these 2.

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Use the References to access important values if needed for this question. The freezing point of benzene C6H6 is 5.50C at 1 atmosphere. A nonvolatile, nonelectrolyte that dissolves in benzene is estrogen (estradiol). How many grams of estrogen, C18H24O2(272.4g/mol), must be dissolved in 262.0grams of benzene to reduce the freezing point by 0.500C ? Refer to the table for the necessary boiling or freezing point constant. Mass =g 9 more group attempts remaining Use the References to access important values if needed for this question. The freezing point of water is 0.00C at 1 atmosphere. How many grams of chromium(II) iodide ( 305.8g/mol ), must be dissolved in 262.0 grams of water to reduce the freezing point by 0.500C ? Refer to the table for the necessary boiling or freezing point constant. Mass =g 9 more group attempts remaining