density is mass/volume so we do
.115/.000265
433.962 g/mL

Where v is the volume(in L) and t is the temperature(in °K)

Answer:

Explanation:
Hello
In this case, given the reaction:

It means that since the coefficients preceding phosphorous and phosphorous trifluoride are 1 and 4, the correct mole ratio should be:

Because given the mass of phosphorous it is convenient to convert it to moles and then cancel it out with the moles on bottom of the mole ratio.
Bes regards!
I thinlk it's by radiation?......
Ur average speed increases bc ur moving faster