Answer:
V = 1.84 × 10³ L
Explanation:
You need to use the Ideal Gas Law and solve for volume.
PV = nRT
V = nRT/P
First, you need to convert the pressure to atm.
1 atm = 760 mm Hg
948/760 = 1.247 atm
Next, convert grams of xenon to moles. The molar mass is 131.293 g/mol.
128/131.293 = 0.975 mol
You now have all of the values needed.
P = 1.247 atm
n = 0.975 mol
R = 8.314 J/mol*K
T = 283 K
Plug the values in and solve.
V = nRT/P
V = (0.975 × 8.314 × 283)/1.247
V = 1.84 × 10³ L
The volume of the sample will be 1.84 × 10³ L.
Y=2x-6
Domain is (2,6) and the range is (-2,-18)
Answer:
There should only be one chemical reaction, this is because toasting the bread is not only using heat, but you cannot untoast the bread, and also theres a reaction with the amino acids and sugar in bread when it's cooked. I hope this helps you! :)
Answer:
atomic mass= 33
Charge= -2
Explanation:
In an atom, are contained three SUBATOMIC particles viz: proton and neutron found in the nucleus, electrons surrounding the nucleus. Protons contain the positive charge of an atom while electrons contain the negative charge of an atom. The number of protons and electrons in an atom determines the charge of an ion (charged atom). Also, the atomic mass or mass number of that atom is got by adding the number of protons + number of neutrons.
In this case where the number of protons and number of neutrons are 16 and 17 respectively, the mass no. or atomic mass is 17 + 16 = 33.
Also, since two electrons are gained by this atom, it means the electron numbe, which is normally equal to the proton number in a neutral atom, will be increased by 2. Hence, the electron number will be 18 in this case.
The charge of the atom= no. of protons - no. of electrons = 16 - 18 = -2.
Answer:
The statement is false
Explanation:
Number of moles of alkene = 2.31 × 85/1000 = 0.196 moles
Number of moles of Br2 = 3.55 × 7.5/1000 = 0.0266 moles
Given that the reaction is 1:1
1 mole of alkene reacts with 1 mole of bromine
0.196 moles of alkene should react with 0.196 moles of bromine
Hence, to achieve 100%yield, 0.196 moles of bromine and not 25mmols of elemental bromine
