Answer:
2.6166 moles
Explanation:
stp means: T=273k p=101.3kpa
R= 8.31(constant) v=58.6
using the ideal gas law; pv=nRt
101.3 x 58.6 = n x 8.31 x 273
n= (101.3 x 58.6)\(8.31 x 273)
n= 2.6166moles
Answer:
3.2 Calories
Explanation:
Here we will use a formula
Heat added in calories = Mass of glass x Increase in temperature x specific heat of glass
As we know that, specific heat is the amount of energy required to raise the temperature of one gram of any substance by 1°C. It has a constant value for every substance and for glass the specific heat is .16 calories/gm
Incorporating the values of mass (m), temperature(T) and specific heat (c) in formula.
calories (small calories) = l.0 g x 20 degrees x .16 calories/gm/°C
= 3.2 calories
Hope it helps:)
Answer:
315 mmHg
Explanation:
The relationship between pressure and temperature looks like this
P1/T1 = P2/T2
What this means is that the first pressure divided by the first temperature is equal to the second pressure divided by the second temperature.
In this instance, we can divide the unknown by 318 K (to find the temp in K add 273 to the degrees Celsius) and set that equal to 300 mmHg divided by 303 K.
x / 318 = 300 / 303
x = 315 mmHg
