CaCN2 + 3H20 - CaCO3 + 2NH3 What is the percent yield if 15.5 g of NH3
is produced upon reaction of 65.5 g of CaCN2
and 451 g of water? The molar mass of CaCN2
is 80.11 g/mol and the molar mass of CaCO3
is 100.09 g/mol.
1. 1.79 %
2. 14.5 %
3. 69.7 %
4. 89.75 %
5. 27.8 %
6. 55.8 %
7. 80.15 %

In which layer of earth do most earthauakes occur a_ inner core b_outer core c_mantle d_crust

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by