20SSS 29 ud autunnhus tu du Buy PRE-up suo pluss VOW Suo Tum Activity 3. Can you handle these problema? Directions: Answer the following Ammonium carbonate, a white solid that decomposes on warming, is a component of baking powder 1.) How many formula units are in 41.6 g of ammonium carbonate? 2.) How many O atoms are in this sample HINT: Write the formula for the compound and calculate its molar mass. Use the given mass to calculate first the number of moles and then the number of formula units. The number of O atoms can be determined using the formula and the number of formula units. SOLUTION: (NH4)2CO3 is the formula for ammonium carbonate (2 x 14.01 g/mol) + 8 x 1.008 g/mol) + (12.01 g/mol) + (3 x 16.00 g/mol) = 96.09 g/mol 1. How many formula units are in 41.6 g of ammonium carbonate? 41.6 g (NH4)2CO3 1 mol (NH4)2CO3 (NH4)2CO3 х 0.433 mol(NH4)2CO3 X 6.022 X 1023 formula units (NH4)2CO3 1 mol (NH4)2CO3 2. How many O atoms are in this sample? 2.61 X 1023 formula units (NH4)2CO3 X 1 formula units of (NH4)2CO3 3. How many moles are in 4.3 x 1022 molecules of H3PO4? 4. What is the number of moles of 36g of H2O?​