Agas is at 5 kelvin and 1 m3. the temperature is raised to 10 kelvin. what is the new volume? 2 m32 m5 m

For this question, suppose the pressure is remained constant, we can use the Charles law to find the answer.

Charles law:

V1/T1 = V2/T2

V1 and T1 are the initial volume and temperature (in K), and V2 and T2 are the final volume and temperature.

We just need to substitute in the numbers in order to find the new volume, V2.

1/5 = V2/10

5V2 = 10

V2 = 2

Therefore, the answer would be 2m3.

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%

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