<u>Question 1</u>
The formula mass of methanol is
g/mol.
Therefore, in 5.0 grams of methanol, there are
moles.
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<u>Question 2</u>
The formula mass of copper(II) carbonate is
g/mol.
This means that in 9.0 grams of copper(II) carbonate, there are
moles.
Using Avogradro's number, there are
molecules.
<u>Question 3</u>
The formula mass of cyclohexane is
g/mol.
So, 3.0 grams of cyclohexane is the same as
moles.
<u>Question 4</u>
The formula mass of benzene is
g/mol.
This means that 4.00 moles of benzene has a mass of
grams.
<u>Question 5</u>
1000 atoms of calcium is the same as
moles.
This is equal to
grams.
The concept of water by displacement. D=m/v therefore m=15.5 g and volume=5 mL (final - initial) then calculate the density
Answer:
Explanation:
So basically is just explain what radioacitvity and then radidoactive
Radioactivity is the spontaneous release of energy from an unstable atom to get to a more stable state. Ionizing Radiation is the energy that comes out of a radioactive atom. Radioactive isotopes are radioactive atoms of the same element that have different numbers of neutrons.
0.499 mol
Explanation: M(CaC2) = 64.1 g/mol, n= m/M = 32.0 g/ 64.1 g/ mol= 0.499 mol
Amount of Calcium hydroxide Is same
I think answer should be b. Please give me brainlest I hope this helps let me know if it’s correct or not okay thanks