The pressure in an automobile tire is 1.88 atm at 25.0°C. What will be the pressure if the temperature increases to 37.0°C?

1.96 atm

Explanation:

P¹/ T¹ = P² / T²

Convert the pressure from atm to mmHg

1.88 atm = 1428.8 mmHg

Convert the temp. to Kelvin

25 + 273 = 298 K

37 + 273 = 310 K

Insert the values

1428.8 / 298 = P² / 310

P² = 310 × 1428.8 / 298

= 1486.3 mmHg

Convery the pressure back to atm

1486.3mmHg = 1.96 atm

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hope this !

- melanie

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%