Mass number = proton number+ neutron number
m=92+143
=235
Not Sure Let Me Review My Answer I Know I have Done This One Before Hmm!
The actual amount of substance doesn’t matter for this problem, so assume an easy mass of compound using the percentages: 82.63 g C and 17.37 g H. There is also no need to worry about significant figures in an empirical formula problem.
Find the number of moles of each element:

Find the ratio of the elements, and simplify until there are whole numbers that you can put into the empirical formula.

There are 5 mol H for every 2 mol C, so the empirical formula should be
.
Answer:
When you exhale, you are placing carbon dioxide into the atmosphere.
Explanation:
Carbon is removed from the atmosphere when photocynthesis onverts carbon to carbohydrates
1. Stirring. This will agitate the sugar and encourage it to dissolve. Stirring creates friction and motion, which in turn will create heat that pulls the sugar particles apart as they are given energy.
2. Applying heat. As mentioned in the previous method. The application of heat gives extra energy to the sugar molecules which encourages it to pull apart and dissolve.
3. Increase the surface area. Where more sugar particles are fully submerged in the tea or being surrounded by the tea, the rate of dissolution will increase.