1 How many grams of SiO2 are in 7.22 X 1030 molecules? 2 How many molecules of HBr are in 4 grams?
3 How many molecules are in 2.03 moles NaOH?
4 How many moles are in 519.3 grams of PbNO3?
5 How many formula units are in 100g of NaCl?
6 How many moles are in 8.07 X 1025 atoms of Sulfur?
7 How many Bromine ions are found in 9.73g of MgBr2? 8 How many grams are in 7.23 x1022 molecules of C6H6?
10 How many nitrogen atoms are in 5.85 grams of trinitrogen trioxide? 11 How many moles are present in 4.77g of Carbon Tetrahydride?

Why do you suppose the structural polysaccharide cellulose does not contain branches? why do you suppose the structural polysaccharide cellulose does not contain branches? branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby decreasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby increasing the rigidity and strength of the microfibrils. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby increasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby decreasing the rigidity and strength of the microfibrils.

Select all the correct answers.which compounds have the empirical formula ch20? (multiple answers)a.c2h4o2b.c3h603c.ch2o2d.c5h1005e.c6h1206

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume