# Posts by nath

Total # Posts: 6

**Physics**

fraction = o.g

**Math**

There is the mystery number between 337 and 400. This number has 2 digits that are the same. The sum of all the digits is 12. What is the mystery number?

**programming1**

please help me in my school assignmnt. Write the algorithm and the c++ source code: 1. Electronics Loading Machine. (Smart,Globe,etc)

**chemistry**

Exactly 1.0 L of hydrogen gas (H2) is collected over water at 292 K under a total pressure of 152 torr. If the vapour pressure of water is 16.5 torr at this temperature, what is the mole fraction of hydrogen in the gas sample? Volume of CO2 = L Mole

**chemistry**

The heat of vaporization of water is 40 kJ mol-1 at 100oC. What percentage of the heat supplied to vaporize the water can be converted into work if the water is vaporized at 100 degrees C against a constant pressure of 1 atm?

**3rd**

to the nearest ten, a jar contains 60 marbels. What is the least number os marbels that can be in the jar? What is the greatest number?