Aspirin is a compound that contain nine carbon atoms, eight hydrogen atoms and four oxygen atoms. It is used as a pain killer. An aspirin tablet contain 1.25x 10^30 molecules. How many moles of the compound are present in the tablet also write its empirical and molecular formulas.​

Which statement is true about the model of the electromagnetic spectrum a: it change the frequencies of light. b: it compare wavelengths of light. c: the color of light waves can be changed using the model. d: the intensities of light waves can be decreased using the model.

To calculate the molarity of a solution, you need to know the moles of solute and the

C=59(f−32)the equation above shows how temperature f, measured in degrees fahrenheit, relates to a temperature c, measured in degrees celsius. based on the equation, which of the following must be true? a temperature increase of 1 degree fahrenheit is equivalent to a temperature increase of 59 degree celsius.a temperature increase of 1 degree celsius is equivalent to a temperature increase of 1.8 degrees fahrenheit.a temperature increase of 59 degree fahrenheit is equivalent to a temperature increase of 1 degree celsius.a) i onlyb) ii onlyc) iii onlyd) i and ii only