41. Note that the V / T ratio is twice as large; so you expect a molar mass twice as high. 42. The phosphate ion is a polyatomic ion with the empirical formula and a molar mass of 94.97 g / mol. 43. The density of sulfur hexafluoride is relatively high at room temperature and pressure due to the gas's large molar mass . 44. (where s is the specific entropy, v is the specific volume, and M is the molar mass ) to obtain 45. From the molarities matrices N, percentages by weight ( wt % ) can easily be derived using the appropriate molar masses . 46. As the demands on polymer properties increased, the necessity of getting absolute information on the molar mass and size also increased. 47. Sodium or lithium peroxides are preferred in space applications because of their lower molar mass and therefore higher oxygen yield per unit weight. 48. When the molar mass is greater than 1000 g / mol, it is rarely appropriate to use more than one decimal place. 49. While molar masses are almost always, in practice, calculated from atomic weights, they can also be measured in certain cases. 50. Therefore, the amount of substance of a sample is calculated as the sample mass divided by the molar mass of the substance.
