volcanoes blew craters in the earths surface and water fill it in and erosion did its part in the making and made the bottom smooth
Answer:
Explanation:1 mole of stuff
specifies
6.022
×
10
23
individual items of stuff. So you have approx.
2 moles.
Explanation:
You have
1.51
×
10
24
individual ammonia molecules.
Moles of ammonia
=
1.51
×
10
24
⋅
ammonia molecules
6.022
×
10
23
⋅
ammonia molecles mol
−
1
=
approx. 2 moles of ammonia molecules
, but don't trust my arithmetic!
How many moles of nitrogen, of hydrogen, do you have in the specified quantity?
Answer link
to convert m into km we have to divide it by 1000.so,
9426/1000=9.426km
92.2km+9.426km=101.626km.
Answer:
315mL
Explanation:
Data obtained from the question include the following:
Molarity of stock solution (M1) = 0.135 M
Volume of stock solution needed (V1) =?
Molarity of diluted solution (M2) = 0.0851 M
Volume of diluted solution (V2) = 500mL
The volume of the stock solution needed can be obtain as follow:
M1V1 = M2V2
0.135 x V1 = 0.0851 x 500
Divide both side by 0.135
V1 = (0.0851 x 500) / 0.135
V1 = 315mL
Therefore, the volume of the stock solution needed is 315mL
Answer:
1
Explanation:
1 hydrogen is displaced from H2so4 in the reaction
