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sanders8151
18.03.2021 •
Chemistry
How many ions are found in 7.39 g of methanol?
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Ответ:
(a) 6.57 g of methanol (CH3OH) in 1.50 × 102 mL of solution. It is known that ... 32.042 g/mol. In order to calculate the molarity, 1st we have to find out the number of moles, ... 34P: Balance the following equations and write the corresponding ionic a. ... 38P: (a) Without referring to Figure 4.11. give the oxidation numbers of.
Explanation:
Ответ:
Thus empirical and molecular formula is sa,e for![C_4H_8O](/tpl/images/1227/2527/deb76.png)
Explanation:
Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.
Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.
1. The empirical formula is![CO_2H](/tpl/images/1227/2527/1e261.png)
The empirical weight of
= 1(12)+2(16)+1(1)= 45g.
The molecular weight = 90 g/mole
Now we have to calculate the molecular formula:
The molecular formula will be=![2\times CO_2H=C_2O_4H_2](/tpl/images/1227/2527/c887e.png)
2. The empirical formula is![CH_3O](/tpl/images/1227/2527/1891f.png)
The empirical weight of
= 1(12)+3(1)+1(16)= 31 g.
The molecular weight = 62 g/mole
Now we have to calculate the molecular formula:
The molecular formula will be=![2\times CH_3O=C_2H_6O_2](/tpl/images/1227/2527/89cea.png)
3. The empirical formula is![C_2H_4O](/tpl/images/1227/2527/ed138.png)
The empirical weight of
= 2(12)+4(1)+1(16)= 44 g.
The molecular weight = 88 g/mole
Now we have to calculate the molecular formula:
The molecular formula will be=![2\times C_2H_4O=C_4H_8O_2](/tpl/images/1227/2527/e45b3.png)
4. The empirical formula is![C_4H_8O](/tpl/images/1227/2527/deb76.png)
The empirical weight of
= 4(12)+8(1)+1(16)= 72 g.
The molecular weight = 72 g/mole
Now we have to calculate the molecular formula:
The molecular formula will be=![1\times C_4H_8O=C_4H_8O](/tpl/images/1227/2527/7f48b.png)