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4. How many moles of F are there in 111 g F2? 5. What is the...

4. How many moles of F are there in 111 g F2?

5. What is the formula mass for each of the following? a. P4, b. H2O2, c. Na2SO4.

6. Balance the following equation for the reaction below HBr + KHCO3 → H2O + KBr + CO2

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Answer #1

We Know, moldador weight> ot F = 19 So, moles 아 F presenk in 1112 of PS .. TheYL are 5, 84 moles pane PYZsemP 9.5 T, e termula monn cy P1-Gx 30975)= 125.qq Molecularweight) of H = 1.008 010=16 . Tha etormula monnol H202=(2 x 1.008) + (16x2) (2.016+32)34.016 ” S = 32 2 (2x23) +32+(16x4) The formula mass of Na, s04= =(46 + 32 + 64) 142

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