Answer:
260K
Explanation:
We use the general gas equation to solve this. The mathematical form can be represented as follows:
P1V1/T1 = P2V2/T2
We are to look for T2 from the question, rearranging the equation yields:
T2 = T1P2V2/P1V1
So what information do we have from the question:
T2= ?
P2 = 640mmHg
V2 = 198L
P1 = 760mmHg
T1 = 273K as they gas is at S.T.P since pressure is 760mmHg which is the standard pressure
V1 = 175L
We now substitute all these values:
T2 = (273 * 640 * 198)/(760 * 175)
T2 = 260K
False
temperature and kinetic energy have direct relation.
The chemical formulae of the given compounds are as follows:
- Magnesium chloride: MgCl₂
- Aluminium chloride: AlCl₃
- Calcium oxide: CaO
- Calcium carbonate: CaCO₃
- Copper nitrate: Cu(NO₃)₂
<h3>Chemical formulae</h3>
A chemical formulae a set of chemical symbols showing the elements present in a compound and their relative proportions in that chemical compound.
The information provided by a chemical formula include:
- The atoms of elements present in the compound
- The ratio in which the elements are combined in the compound
- The state in which the compound occurs
The chemical formulae of the given compounds are as follows:
- Magnesium chloride: MgCl₂
- Aluminium chloride: AlCl₃
- Calcium oxide: CaO
- Calcium carbonate: CaCO₃
- Copper nitrate: Cu(NO₃)₂
Learn more about chemical formulae at: brainly.com/question/8007130
The right answer is
Table A Organic solvent
No Perfume No Fuel No Anesthetic No Adhesive Yes
Answer:
Mass = 132 g
Explanation:
Given data:
Mass of CO₂ formed = ?
Mass of C burnt = 36 g
Solution:
Chemical equation:
C + O₂ → CO₂
Number of moles of carbon:
Number of moles = mass/molar mass
Number of moles = 36 g/ 12 g/mol
Number of moles = 3 mol
now we will compare the moles of carbon and carbon dioxide.
C : CO₂
1 : 1
3 : 3
Mass of CO₂:
Mass = number of moles × molar mass
Mass = 3 mol × 44 g/mol
Mass = 132 g
