Find the following antilogs to the correct number of significant figures. a) antilog(4.663) = b) antilog(0.008) = c) antilog(-3.7795) =

9

codeine, C18H21 NO3 Express your answer in percent to three significant figures. %0 = IVE ΑΣΦ μεταγρα ? %

Calculate the number of carbon atoms in a 50.0 g sample of camphor (C10H160). Be sure your answer has a unit symbol if necessary, and round it to 3 significant digits. x10 X 5

A compound contains only Mn and F. The ratio of Mn and F is 1.73 moles of F per 1 mole of Mn.  If the empirical formula is expressed as MnFx, what is the numerical value for x?  If the formula is MnF5, you would enter the number 5.  Please enter a whole number (i.e. round the number to the nearest whole number) and DO NOT include any units.

In the picture below, determine how many atoms with a radius of 37pm can fit into a 1.00" box. Canvas does not work well with scientific notation, so you should enter your number as a regular number (you might have lots of zeros, hint, hint). So if you found the answer was 6.36x106 atoms, then you would write 6360000. Hint: Do this as a conversion and start with 1.00 inch as your starting number. This problem seems much more complicated, but it is the same problem you have been doing, you just need to make the units match! r=37pm 1.00"

3/5 Calculate the number of hydrogen atoms in a 90.0 g sample of camphor (C10H160). Be sure your answer has a unit symbol if necessary, and round it to 3 significant digits. x10

What is the mass percent of phosphorus in P5O2?

How many grams F in 511.9 g Br2F6?    Put the answer in the box in regular (non-scientific) notation.  Use one figure past the decimal.

Question number one please