Wednesday

April 23, 2014

April 23, 2014

Total # Posts: 7

**chemistry**

A 3.75-G SAMPLE OF IRON ORE IS TRANSFORMED TO A SOLUTION OF IRON(II)SULFATE, FeSO4,AND THIS SOLUTION IS TITRATED WITH 0.150 M K2Cr2O7. IF IT REQUIRES 43.7 mL OF POTASSIUM DICHROMATE SOLUTION TO TITRATE THE IRON(II)SULFATE SOLUTION, WHAT IS THE PERCENTAGE OF IRON IN THE ORE? TH...

**math**

I am also unclean if the exponent is negative, such as -2, does the ordered pair go in as (-2, 1/2)?

**math**

I am having to find the value of y for the given values of x. I understand how to find the value of x, but I am unsure how to put it in the form of ordered pairs: This is not the actual problem on my assignment: y=7^x, for x=2 y=7^2 y=7*7 y=49 I am lost as to how I put it in o...

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