Answer:
10.11 mL
Explanation:
Given that :
Total volume of decolorizer = 500 mL
A common recipe is equal parts 95% ethanol and acetone.
So;
The volume of 95% ethanol in the decolorizer = 500mL/2 = 250 mL
Let represent V(ml) for the 99% of ethanol needed to make 95% of the 250 mL of ethanol;
Therefore:
V(ml) × 0.99 = 250 × 0.95
V(ml) × 0.99 = 237.5
V(ml) = 237.5/0.99
V(ml) = 239.89 mL
Hence; the amount of water to be added to 95% of ethanol = ( 250 - 239.89 )mL = 10.11 mL
Answer:

Explanation:
BNCT therapy consists in the irradiation of the atoms of ¹⁰B that are contained in the tissue that has the tumor cells, with thermal neutrons to produce alpha particles and ⁷Li nucleus, according to the following nuclear reaction:
<em>Since the tissues also contain H and N atoms, the neutron irradiation produces secondary reactions in which proton particles and gamma radiation are produced:</em>
I hope it helps you!
Answer: 2.17 g of bromide product would be formed
Explanation:
The reaction of calcium bromide with lithium oxide will be:

To calculate the moles :

As lithium oxide is in excess, calcium bromide is the limiting reagent.
According to stoichiometry :
1 mole of
produce = 2 moles of 
Thus 0.0125 moles of
will require=
of 
Mass of 
Thus 2.17 g of bromide product would be formed
certin greenhouse gasses poke hole in our Ozone layer which can lead to higher temps and bigger storms and longer droughts
Grams of glucose = 0.7488 mg=748.8 μg
<h3>Further explanation</h3>
A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.
Reaction
6CO₂+6H₂O⇒C₆H₁₂O₆+6O₂
25 micromoles, μmoles, of CO₂ :
moles CO₂ : moles glucose - C₆H₁₂O₆ = 6 : 1, so :

mass of glucose
