2.77mg caffeine / 1oz12oz / 1canLethal dose: 10.0g caffeine = 10,000mg caffeine First, find how much caffeine is in one can of soda, then divide that amount by the lethal dose to find the number of cans. (2.77mg caffeine / 1oz) * (12oz / 1can) = 33.24mg caffeine / 1can. (10,000mg caffeine) * (1can / 33.24mg caffeine) = 300.84 cans. Since we can't buy parts of a can of soda, then we have to round up to 301 cans. Notice how all the values were set up as ratios and how the units cancelled.
Answer:
The correct answer is - 4.5 pesos.
Explanation:
Given:
rate of per kg = 39 pesos
price for 0.25 lb = ?
Solution:
we know and given that,
1 kg = 2.20 lb
1 lb = 1000gm/2.20
then, the price for 0.25 lb would be:
=> (39/2.20)*0.25
= 4.4318 or 4.5 pesos
Answer:
(a) Benzene = 0.26; toluene = 0.74
(b) Benzene = 0.55
Explanation:
1. Calculate the composition of the solution
For convenience, let’s call benzene Component 1 and toluene Component 2.
According to Raoult’s Law,
where
p₁ and p₂ are the vapour pressures of the components above the solution
χ₁ and χ₂ are the mole fractions of the components
p₁° and p₂° are the vapour pressures of the pure components.
Note that
χ₁ + χ₂ = 1
So,
χ₁ = 0.26 and χ₂ = 0.74
2. Calculate the mole fraction of benzene in the vapour
In the liquid,
p₁ = χ₁p₁° = 0.26 × 75 mm = 20 mm
∴ In the vapour
Note that the vapour composition diagram below has toluene along the horizontal axis. The purple line is the vapour pressure curve for the vapour. Since χ₂ has dropped to 0.45, χ₁ has increased to 0.55.
<span>SnSO4 • 7H2O
This formula has 2 part
1) </span>SnSO4 - <span>tin (II) sulfate
2) 7H2O - </span><span>heptahydrate (that means 7 molecules of water).
So full name is </span><span> tin (II) sulfate heptahydrate.</span>
Answer:
in prism
it's from the rectangular reflecting surface
