Find the empirical formula for a compound with 92.25 % Cand 7.75 % H. Please help. I’m really struggling. No wrong answers please, if you don’t know it please don’t answer, I’m already failing the class.

Amass of 100.0 g of solute is dissolved in water so that 850. ml of a 0.7500 m solution has been prepared. what is the molar mass of the solute?

There are main groups in the modern periodic table of elements

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?