1 Empirical formula is a comparison of the number of moles of a compound so you need your values in moles. 2  Using the oxygen example again, there are 16.0 grams per mole of oxygen so 40 grams of oxygen would be 40/16 = 2.5 moles of oxygen.hen you have the molar mass you can find the ratio of the actual mass of the compound to the empirical mass. If the ratio is one (as with water, H 2 O), then the empirical formula and molecular formula are the same.
Weather in Yosemite in July. The average maximum daytime temperature in Yosemite in July is a warm 23Â°C (73Â°F). There are usually 12 hours of bright sunshine each day, which represents 81% of the 14 hours of daylight. Expect 19mm (0.7 inches) of rainfall across the whole of July with 5 days with some rain falling.
July is summer time in San Francisco, USA, and the temperatures are fairly stable throughout the month. The average temperature during the day is 140C with the average high and low temperatures ranging from a daytime high of 230C to an overnight low of 150C. The highest temperature ever recorded in July was 390C in 2000 and the coldest July day was in 1999 when temperatures dropped to 80C. The rainfall at this time of year is similar to Malta with very little rain and the average rainfall for this month is 0mm.