Answer:
I'd have to see the diagram to figure this out. im sorry
Explanation:
if you have another question, i'll help
The molarity of HCl is calculated as below
find the moles of mg used
moles = mass /molar mass
= 2.00g/24 g/mol=0.083 moles
write the reacting equation
Mg(s) +2HCl (aq)= MgCl2(aq) + H2(g)
by use of mole ratio between Mg to HCl which is 1 :2 the moles of HCl is therefore
= 0.083 x2 =0.166 moles
molarity of HCl = moles of HCl/ volume in dm^3
that is 0.166/50 x1000= 3.3 M of HCl
Answer:
State Newton's first law of motion in your own words. According to Newton's first law of motion, the state of motion of an object does not change as long as the net force acting upon the object is zero. ... These two forces are called the action and reaction forces.
Explanation:
I think it might mean like energy went off not sure tho
Fe is Iron, F is fluorine, for the formula FeF3, there is one molecule of FeF3; this molecule is comprised of one atom of Iron and 3 atoms of fluorine.
Now we need to fine the molecular mass of FeF3, we can do that by looking at the periodic table of element and finding the atomic mass of each element:
Fe = 55.845
F= 18.998
We must multiply the atomic mass of F (18.998) by 3 because there are 3 atoms on F, so we get: 56.994. Now we need to add the atomic mass of Fe (55.845) to the atomic mass of F3 to get: 112.839.
Now you have the weight of FeF3 (112.839). The formula is: Mole = grams/ amu (average atomic mass. The average atomic mass is 112.839 and the question tells us there are 24 grams FeF3, now we divide to get: 0.21 mol/g.
There are 0.21 mol in 24 grams of FeF3, now we need to convert to # of atoms. We can do that by using Avagadro's number: 6.022 • 10^23. We multiply 0.21 by 6.022 • 10^23 to get: 1.26462 • 10^23.
So that would mean that the number of atoms in 24 grams of FeF3 is: 1.26462 • 10^23.
Hope that helped.
