Advertisements
Advertisements
Question
Fill in the missing data in the Table
| Species Property | H2O | CO2 | Na atom | MgCl2 |
| No. of moles | 2 | - | - | 0.5 |
| No. of particles | - | 3.011×1023 | - | - |
| Mass | 36g | - | 115 g | - |
Advertisements
Solution
| Species Property | H2O | CO2 | Na atom | MgCl2 |
| No. of moles | 2 | 0.5 | 5 | 0.5 |
| No. of particles | 1.2044 × 1024 | 3.011×1023 | 5×6.022 x1023 = 3.011 x 1024 | 0.5 x6.022 x 1023 x 3 = 9.033 x 1023 |
| Mass | 36g | 22g | 115 g | 47.5g |
APPEARS IN
RELATED QUESTIONS
Convert into mole.
12 g of oxygen gas
What is the mass of 0.2 mole of oxygen atoms?
Calculate the percentage of water of crystallization in CuSO4.5H2O
(H = 1, O = 16, S = 32, Cu = 64)
If 16 g of oxygen contains 1 mole of oxygen atoms, calculate the mass of one atom of oxygen.
Define mole. What are the two things that a mole represents.
Fill in the blank
One gram atom of an element contains ______ atoms.
A student puts his signature with graphite pencil. If the mass of carbon in the signature is 10-12 g. Calculate the number of carbon atoms in the signature.
The equation for the burning of octane is:
\[\ce{2C8H18 + 25O2 -> 16CO2 + 18H2O}\]
- How many moles of carbon dioxide are produced when one mole of octane burns?
- What volume, at STP, is occupied by the number of moles determined in (a)?
- If the relative molecular mass of carbon dioxide is 44, what is the mass of carbon dioxide produced by burning moles of octane?
- What is the empirical formula of octane?
Calculate the mass of 0.1 mole of the following:
CaCl2
(Ca = 40, Na=23, Mg =24, S=32, C = 12, Cl = 35.5, O=16, H=1)
Raunak took 5 moles of carbon atoms in a container and Krish also took 5 moles of sodium atoms in another container of same weight.
- Whose container is heavier?
- Whose container has more number of atoms?
