Answer:
The pressure will be 4, 5 atm
Explanation:
We use Boyle Mariotte's formula: for a given mass of gas at constant temperature, the pressure and volume vary inversely proportionally:
P1xV1=P2xV2
P2= (P1xV1)/V2 = (1,5 atm x 6 L)/2 L=<em>4,5 atm</em>
Answer:
A-Saturn
B-Mars
C-Venus
D-Uranus
Explanation:
A-Only Saturn is the sixth planet
B-Mars is commonly known as the red planet
C-Only Venus has a day longer than its year
D-Only Uranus has 27 known moons
Answer:sulfur
An atom of sulfur contains 16 protons, because its atomic number is 16, and 16 electrons, in order to be net-neutral.
Explanation:
Answer:
Explanation:
To convert from molecules to moles, we must Avogadro's Number.
This number is how many particles (atoms, molecules, ions, etc.) in 1 mole of a substance. In this case, it is molecules of ammonia in 1 mole of ammonia.
Use Avogadro's number as a ratio.
Multiply by the given number of ammonia molecules (6.21*10²⁴)
Flip the fraction so the molecules of ammonia can cancel out.
Multiply to make 1 fraction.
Divide.
The original measurement of molecules had 3 significant figures (6,2 and 1). Therefore we must round our answer to 3 sig figs.
For the answer we found, 3 sig figs is the tenth place. The 1 in the hundredth place tells us to leave the 3 in the tenth place.
There are about <u>10.3 moles of ammonia</u> in 6.21*10²⁴ molecules.