Answer:
4 L or 4000 mL
Explanation:
This question asks for the use of combined gas law:
(P1)(V1) / (T1) = (P2)(V2) / (T2)
...where pressure (P) is in atm, volume (V) is in liters, and temperature (T) is in kelvin.
1000 ml is 1 L, and everything else is already in the right units.
(1 atm)(1 L) / (20 K) = (0.5 atm)(V2) / (40 K)
Just solve the equation for V2, and you get a new volume of 4 liters
(1)(1) / (20) = (.5x) / (40)
1 / 20 = .5x / 40
2 = .5x
x = 4
Answer:
Standardization is the process of titrating a solution prepared from a carefully measured mass of solid accurately determine the concentration of the titrant.
Answer:
The both refer to the same term.
Explanation:
The heat of neutralization also called the enthalpy of neutralization. It is the heat evolved or the enthalpy change when one equivalent of acid reacts with one equivalent of a base under standard conditions to form salt and water only.
Answer:
Over 700,000 lives are taken by the AIDs virus every year. Hepatitis C claims the lives of over 200,000 people each year and haemorrhagic fevers caused by viruses such as Ebola have resulted in over 20,000 deaths.
Explanation:
Answer:
The correct answer is 582.8.
Explanation:
To solve this problem, we must remember the rules for significant figures for addition. Recall that the answer should have the same number of decimal places as the term with the least number of decimal places that we are adding. In this case, we can see that out of our three terms, 98.3 has the least number of decimal places. This lets us know that our answer should be rounded to the tenths place.
With this in mind, we can compute the addition.
246.24 + 238.278 + 98.3
= 582.818 (unrounded value)
However, we stated that our answer should be rounded to the tenths place.
Therefore, our answer is 582.8.
Hope this helps!
