Shine Bright Shine Far

This page lists questions and answers that were posted by visitors named Shine Bright Shine Far.

Questions

The following questions were asked by visitors named Shine Bright Shine Far.

I did the question but I need help is this right? Thanks How many atoms of chlorine are in 19.0 grams of MgCl2? 24.3 + 2(35.5) = 95.3 19.0/95.3 x 6.022 x 1023 = 1.201 1023

Confused What is the percent composition of chlorine in PCl5?

Steven analyzed a compound and found it to be 52.7% Potassium and 47.3% Chlorine. He determined the empirical formula to be

Answers

The following answers were posted by visitors named Shine Bright Shine Far.

1.20 x 10^23 formula units x 2 Cl atoms / formula unit = 2.40 x 10^23 Cl atoms.

31.0 + 5(35.5) = 208.5 35.5 x 5= 177.5 177.5% 208.5 x 100% = 85%

yes thank you Damon !!!

0.30 mol / 4.00L = 0.075 mol/L ..