0.50 Molar means 0.50 moles/liter
(.5 moles/liter)/3.5 moles= 1/7 Liters
The balanced chemical equation for reaction of
and
is as follows:

From the balanced chemical equation, 2 mol of
reacts with 1 mol of
.
First calculating number of moles of
as follows:

On rearranging,

Here, M is molarity and V is volume. The molarity of
is given 0.274 M or mol/L and volume 155 mL, putting the values,

Since, 1 mol of
reacts with 2 mol of
thus, number of moles of
will be
.
Now, molarity of
is given 0.305 M or mol/L thus, volume can be calculated as follows:

Therefore, volume of
is 278.5 mL.
Los metales son materiales que se obtienen a partir de minerales que forman parte de las rocas. Por ejemplo, el metal hierro se extrae de minerales de hierro como la magnetita o la siderita.
Answer:
Explanation:
q= mc theta
where,
Q = heat gained
m = mass of the substance = 670g
c = heat capacity of water= 4.1 J/g°C
theta =Change in temperature=(
66-25.7)
Now put all the given values in the above formula, we get the amount of heat needed.
q= mctheta
q=670*4.1*(66-25.7)
=670*4.1*40.3
=110704.1
Answer:c
Explanation:
I think because ca^+2
It’s loses the ion and if u look back u would see that a cation is a t charge but it’s not Goan that electron it’s losing that electron