Answer:
NO.3) Mass of Al2O3 formed = 229.5g
Answer:
403 mL
Explanation:
First, I will assume that the mole is 1, because you are not specifing this.
Now, with the innitial data, we need to get the pressure:
T = 65+273 = 338 K
V = 500 / 1000 = 0.5 L
Now if:
PV = nRT
Then:
P = nRT/V and V = nRT/P
Let's calculate the P:
P = 1 * 0.082 * 338 / 0.5 = 55.432 atm
The standard temperature is 0° C or 273 K so, the volume is:
V = 1 * 0.082 * 273 / 55.432
V = 0.40384 L or simply 403.84 mL
Answer:
See Explanation
Explanation:
Positrons are often called positive electrons. They have the same mass and magnitude of charge as the electron but are of opposite sign. This means that they are positively charged while electrons are negatively charged.
In positron emission, a proton is converted into a neutron and a positron. The anti neutrino is a particle that balances the spins.
In electron capture, an electron is converted to a neutron. The anti neutrino is a particle that balances the spins.
When transmutation occurs by positron emission, the mass number of the of the parent nucleus is the same as mass number of the daughter nucleus but the atomic number of daughter nucleus decreases by 1 while the neutron/proton ratio increases.
When transmutation occurs by electron capture, the mass number of the of the parent nucleus is the same as mass number of the daughter nucleus but the atomic number of daughter nucleus decreases by 1 while the neutron/proton ratio increases.
<u>Answer:</u> The precipitate formed in the given reaction is 
<u>Explanation:</u>
Precipitation reaction is defined as the reaction in which an insoluble salt is formed when two solutions are mixed containing soluble substances.
Precipitate is the insoluble salt which settles down at the bottom of the reaction mixture.
For the given chemical reaction:
By Stoichiometry of the reaction:
2 moles of aqueous sodium chloride reacts with 1 mole of aqueous barium hydroxide to produce 1 mole of solid barium chloride and 2 moles of aqueous sodium hydroxide
Hence, the precipitate formed in the given reaction is
Complete Question
The complete question is shown on the first uploaded image
Answer:
The correction option is is 
Explanation:
The mechanism of the reaction is show on the second uploaded image
