Convert a gas pressure of 485 cmHg to atmospheres. (cm not mm!)Wouldn't you simple convert cm to mm (4850) and divide by 760 mmHg?
To convert gas pressure from cmHg (centimeters of mercury) to atmospheres, you would divide the pressure value in cmHg by a conversion factor.
However, in this case, you mentioned that the pressure value is given in cmHg, not mmHg. To convert cmHg to mmHg, you multiply by 10. Therefore, the given pressure value of 485 cmHg can be converted to mmHg by multiplying it by 10:
485 cmHg * 10 = 4850 mmHg
Now, to convert the pressure from mmHg to atmospheres, you divide the pressure value in mmHg by the conversion factor, which is 760 mmHg per atmosphere:
4850 mmHg / 760 mmHg = 6.38 atmospheres (approximately)
Therefore, a gas pressure of 485 cmHg is approximately equal to 6.38 atmospheres.