Answer:
when the pH increases suddenly in the flask
Explanation:
I think it's right. :)
Answer:

Explanation:
Any gas at standard temperature and pressure (STP) has a volume of 22.4 liters per mole or 22.4 L/mol. We can create a proportion with this value.

Multiply both sides of the equation by 6.8 moles of krypton.

The units of moles of krypton will cancel.

The denominator of 1 can be ignored, so this becomes a simple multiplication problem.


If we round to the nearest whole number, the 3 in the tenths place tells us to leave the 2 in the ones place.

6.8 moles of krypton gas at standard temperature and pressure is equal to <u>152 liters</u>.
The SI unit for volume is cubic meters of M^3
Answer:
it is equal to 125 kPa
Explanation:
move the decimal 3 to the left
Answer:
= 3.01×
molecules.
Explanation:
1 mole of
- 98g
? moles of
- 49g
= 49 ÷ 98 = 0.5 moles of O2 in 49g.
But 1 mole of any substance = 6.023 ×
molecules
∴ 0.5 moles = 0.5 × 6.023 ×
molecules
= 3.01×
molecules.