Answer: Mass of hydrogen produced is 0.0376 g.
Explanation:
The reaction equation will be as follows.

Now, formula for total pressure will be as follows.

Hence, 
= 755 mm Hg - 42.23 mm Hg
= 712.77 mm Hg

= 0.937 atm
Now, we will calculate the moles of
as follows.


n =
mol
= 0.0187 mol
Therefore, mass of
will be calculated as follows.

= 0.0376 g
Thus, we can conclude that mass of hydrogen produced is 0.0376 g.
Answer:
C. 548mL
Explanation:
Attached is an image of the explanation. Hope this helps!
Answer:
D. An acid accepts an electron pair from a base.
Explanation:
acorroding to lewis
- an acid is a compound which accepts a pair of electrons from base .
- a base is a compound which donates a pair of electron to acid .
Physical properties are describing the object.
-White
-Grainy
-Small
-Sweet
etc.