| 1. | the formula which represents the composition of water is, then, .
因此，代表水的成分的分子式就是。 |
| 2. | the molecular formula of tristearin, a common animal fat, is 丙阐.
有一种普通的动物脂肪--硬脂酸甘油酯分子式为。 |
| 3. | On the left of the equation we write the molecular formulas of all the ingredients or reactants .
在反应式的左侧我们写上全部反应物的分子式。 |
| 4. | From the molecular formula alone, we can deduce the "degrees of unsaturation" in the molecule .
仅从分子式，我们就能推断分子中的“不饱和度”。 |
| 5. | The precise molecular weight that is measured can be uniquely associated with a specific molecular formula .
测得的准确分子量与具体的分子式完全吻合。 |
| 6. | Before we can assign a structural formula to a compound, we must first know its molecular formula .
在确定一个化合物的结构式之前，首先应知道它的分子式。 |
| 7. | Substances which have identical molecular formulas but different structural formulas, are known as isomers .
凡具相同分子式但不同结构式的物质称为异构体。 |
| 8. | in agreement with this prediction, we find that two compounds of the same formula, , have been isolated.
与这个预料相一致，已分离出两个分子式同为的化合物。 |
| 9. | The writing of formulas with elements and radicals that have a fixed valence is easy, if a knowledge of electrostatics is applied .
运用静电学知识写出具有固定化合价的元素和原子团组成的物质的分子式比较容易。 |
| 10. | Calculation of molecular formula of compounds by hrms data
数据计算化合物的分子式 |
