Answer:
chromosomes is responsible
Answer:
55.75g
Explanation:
From
m/M = CV
Where
m= required mass of solute
M= molar mass of solute
C= concentration of solution
V= volume of solution=675ml
Molar mass of solute= 3(23) + 31 + 4(16)= 69+31+64=164gmol-1
Number of moles of sodium ions present= 1.5× 675/1000= 1.01 moles
Since 1 mole of Na3PO4 contains 3 moles of Na+
It implies that 1.01/3 moles of Na3PO4 are present in solution= 0.34moles
mass of Na3PO4= number of moles × molar mass= 0.34 × 164 =55.75g
Answer:
A supersaturated solution made out of sugar and oil is crystallized on a surface suitable for crystal nucleation such as a stick.
I hope this helps.
Answer:
The total pressure will be 1, 021 atm
Explanation:
We apply Dalton's law, where for a gas mixture the total pressure is the sum of the partial pressures of each gas that makes up that mixture. The unit of pressure is converted into atm:
760mmHg----1 atm
542mmHg----x=(542mmHgx 1 atm)/760mmHg=0,713 atm
234mmHg----x=(234mmHgx 1 atm)/760mmHg=0,308 atm
Pt=P Ne + P At= 0,713 atm + 0,308 atm= <em>1, 021 atm</em>
Answer:
After 1.95x10⁴ s, total pressure is 0.34 atm
Explanation:
t(s) 0 1000 3000 7000
PTotal (atm) 0.15 0.16 0.18 0.20
These are the data of the experiment, so let's make a linear regression
X | Y
0 | 0.15
1x10³ | 0.16
3x10³ | 0.18
7x10³ | 0.20
You can do this by the calculator, but let's do it manually.
Y = mx + b
m = (Y₂ - Y₁) / (X₂ - X₁)
m = 0.18 - 0.16 / 3x10³ - 1x10³
m = 0.02 / 2x10³ = 1x10⁻⁵
b = 0.15 (y-intercept, where x is 09
Y = 1x10⁻⁵ X + 0.15
Notice that in the statement, after 7000 s, pressure is 0.22 atm
1x10⁻⁵ . 1.95x10⁴ + 0.15 = 0.34atm
