Answer : 1721.72 g/qt are in 18.2 g/cL
Explanation :
As we are given: 18.2 g/cL
Now we have to convert 18.2 g/cL to g/qt.
Conversions used are:
(1) 1 L = 100 cL
(2) 1 L = 1000 mL
(3) 1 qt = 946 qt
The conversion expression will be:


Therefore, 1721.72 g/qt are in 18.2 g/cL
Anna lives in a city that is part of the tropical climate types. It has a constantly warm weather, and thus higher humidity, and according to the annual rainfall, it is most probably a rainfall that appears seasonally, not throughout the whole year.
Tim, on the other hand, lives in a city that is part of the dry climate types. It is most probably a place that is deep into the mainland, like the cold deserts of Central Asia, where the temperatures in the summer are high, and in winter are very low. Because of the distance from the sea, the rainfall doesn't reach this places, so they are very dry, and only have symbolic amount of annual rainfall.
Answer: 0.0007 moles of
is released when temperature is raised.
Explanation:
To calculate the number of moles, we use the ideal gas equation, which is:

where,
P = pressure of the gas = 1.01 bar
V = Volume of the gas = 1L
R = Gas constant = 
- Number of moles when T = 20° C
Temperature of the gas = 20° C = (273 + 20)K = 293K
Putting values in above equation, we get:

- Number of moles when T = 25° C
Temperature of the gas = 25° C = (273 + 25)K = 298K
Putting values in above equation, we get:

- Number of moles released =

Hence, 0.0007 moles of
is released when temperature is raised from 20° C to 25° C
Answer:
BHx, x=3
CHx, x=4
NHx, x=3
CH2Clx, x=2
Explanation:
We have to know that the value of x must depend on the valency of the central atom. If we look at each of the species;
Boron has a common valency of 3
Carbon has a common valency of 4
Nitrogen has a common valency of 3
The valency of each elements will determine the most likely value of x as outlined in the answer above.
Answer:- Molecular formula of the compound is
.
Solution:- From given information:
C = 46.47%
H = 7.80%
Cl = 45.72%
First of all we find out the empirical formula from given percentages. We divide the given percentages by their respective atomic masses to calculate the moles:
= 3.87
= 7.72
= 1.29
Now, we divide the moles of each by the least one of them. Least one is Cl as it's moles are least as compared to the moles of C and H. So, let's divide the moles of each by 1.29.
= 3
= 6
= 1
So, the empirical formula of the compound is
.
Empirical formula mass = 3(12.01) + 6(1.01) + 1(35.45)
= 36.03 + 6.06 + 35.45
= 77.54
To calculate the number of formula units we divide molar mass by empirical formula mass.
number of empirical formula units = 
= 2
So, the molecular formula would be two times of empirical formula that is,
.