Answer: yes microwaves are examples of radiant energy
Explanation:
Answer:
See explanation
Explanation:
We define the rate of reaction as the rate of disappearance of reactants or the rate of appearance of products. The negative sign written before the rate of change of concentration of reactants shows that their concentration decreases with time.
The rate of reaction in terms of the concentration of each reactant or product is shown below;
Rate = -1/4d[NH3]/dt
Rate = -1/5d[O2]/dt
Rate = 1/4d[NO]/dt
Rate = 1/6[H2O]/dt
DEEZ NUTS ha gattti -sorry
Answer : The question is incomplete.
The complete question will be -
A chemical engineer determines the mass percent of iron in an ore sample by converting the Fe to
in acid and then titrating the
with Mn
<span>.
A 1.3909 g sample was dissolved in acid and then titrated with 21.63 mL of 0.03709 M KMn</span>
<span>. The balanced equation is given below. </span>
8
(aq) + 5
(aq) + Mn
(aq) → 5
(aq) +
+(aq) + 4
<span>(l) </span>
<span>Calculate the mass percent of iron in the ore. </span>
______%
Calculation : Given :- weight of sample - 1.3909 g,
Moles of KMn
- 0.04462 m
Volume of KMn
- 21.63 mL
On solving we get,
(21.63 mL KMn
/ 1.3909g sample) x (1L / 1000mL) x (0.04462mol KMn
/ L KMn
) x (5 mol Fe2+ / 1 mol KMn
) x (55.845g
/ mol
) x 100% = 19.37%
So the concentration of the ore is
19.37%
Answer:
I believe the answer is B but if I am wrong then I am very sorry