Backpackers often use canisters of white gas to fuel a cooking stove's burner. If one canister contains 1.45 L of white gas, and the density of the gas is 0.710 g/cm3, how many kilograms of fuel are contained in one canister?
Answers
The number of kilograms of fuel that are contained in one canister is 1.03 Kilograms
calculation
mass = density x volume
Density= 0.710 g/cm³
volume = 1.45 L
convert 1.45 l into cm³ to make the units uniform
that is 1 L= 1000 cm³
1.45 L= cm³
by cross multiplication
= (1.45 L x 1000 cm³) / 1 L = 1450 cm³
mass is therefore = 0.710g/cm³ x 1450 cm³ =1029.5 grams
convert grams to Kg
1 kg = 1000 grams
? kg =1029.5 grams
by cross multiplication
= (1 kg x 1029.5 grams) /1000 grams = 1.0295 Kg ≅1.03 kg
the canister contains a gas used to fuel a burner
the volume of the white gas to be used is - 1.45 L
density of white gas is 0.710 g/cm³
density is defined as the mass per unit volume
the mass of 1 cm³ of white gas is - 0.710 g
1 cm³ is equivalent to 0.001 L
the volume given is in Litres
so if 0.001 L has a mass of 0.710 g
then 1.45 L have a mass of - 0.710 g / 0.001 L x 1.45 L = 1030 g
since 1000 g is equivalent to 1 kg
mass of white fuel is - 1030 g/1000 g/kg = 1.03 kg
theres 1.03 kg of fuel in one canister
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Trail B will have a lower activation energy than trail A because in this trial the scientist added a catalyst.
What is a catalyst?
A catalyst is a substance that can be added to a reaction to increase the reaction rate without getting consumed in the process.
A catalyst is a substance that speeds up a chemical reaction or lowers the temperature or pressure needed to start one, without itself being consumed during the reaction.
Catalysts slow down reaction rates which will in turn mean a loweractivation.
Hence, trail B will have a lower activation energy than trail A because in this trial the scientist added a catalyst.
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Answer:
It will have a lower activation energy than Trial A.
Explanation:
Trail B will have a lower activation energy than trail A because in this trial the scientist adds a catalyst. Catalysts slow down reaction rates which will in turn mean a lower activation.
Answers
Answer:
17 atoms are in 3(SO)4
Explanation:
Final answer:
There are 15 total atoms in
Explanation:
To find the total number of atoms in a chemical formula like 3(SO)4, you need to multiply the subscripts (the numbers outside the parentheses) by the number of atoms represented by each element within the parentheses and then multiply that by the coefficient (the number outside the formula).
In this case, you have:
Now, let's break it down:
The subscript for sulfur (S) is 1.
The subscript for oxygen (O) is 4.
So, for each (SO4) unit, you have 1 sulfur atom and 4 oxygen atoms.
Now, multiply this by the coefficient of 3:
= 3 * (1 sulfur atom + 4 oxygen atoms)
= 3 sulfur atoms + 12 oxygen atoms
So, in , there are a total of 3 sulfur atoms and 12 oxygen atoms, for a combined total of 15 atoms.
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Answers
B) valence electrons are anchored to specific metal cations
C) valence electrons drift freely around the metal cations
D) electrons idle around the metal cations
E) valence electrons are anchored to specific metal anions
Answers
Answer: Option (C) is the correct answer.
Explanation:
In electron sea model, the valence electrons in metals are delocalized instead of orbiting around the nucleus.
Therefore, this delocalization forms a sea of electrons. These electrons are free to move within the metal atoms.
Thus, we can conclude that the electron sea model for metals suggest that valence electrons drift freely around the metal cations.
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To convert the distance from kilometers to meters, we utilize the known fact that 1 kilometer is equivalent to 1000 meters. Thus, to get the equivalent of 0.704 kilometers to meters, simply multiply the given distance by 1000.
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This means that this particular distance or length is the same as 704 meters when converted to meters from kilometers.
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b. An atom must be identical in size.
c. An atom must be similar in size.
d. The substituting atom must be from the same period. E) The substituting atom must be from the same group.
Answers
The correct answer is options c and e.
A solid solution is basically a multi-component framework that comprises a mixture of two or more elements exhibiting a similar crystal lattice. The examples of solid solutions are alloys.
The requirements for one kind of atom to substitute for another in a solid solution are:
1. The size of the atom must be similar.
2. The substituting atom must be from a similar group.
Answer:
An atom must be similar in size.
The substituting atom must be from the same group.
Explanation:
A solid solution is a solid mixture containing a minor component uniformly distributed within the crystal lattice of another component called the major component. Metal alloys are typical examples of a solid solution.
Note that only atoms of similar size can substitute each other in a solid solution. Usually atoms of elements in the same group have atomic sizes that vary within narrow ranges. Hence atoms of elements in the same group have similar atomic sizes and can substitute each other in a solid solution.