URGENT Mole Practice 1. How many moles of HCl are in 7.80 X 10^22 molecules?
___0.13 moles of HCI_

2. How many atoms are in 5.6 moles of Na?
3.2 E 24 atoms of Na

3. A chemical reaction produces 3.81g potassium chloride (KCI). How many formula units of
potassium chloride are there?*Find molar mass of KCI
Answer_3.08 E 22 formula units of KCI

4. Calculate the molar mass of Fe2(SO2)3. Then calculate the mass of iron(III) sulfate of 4.05X1023
formula units.
_269g Fe2(SO4)3_

5. Determine the number of liters in 4.32 grams of water (H2O)
__ 5.37LH2O___

Ineed someone to see if my answers are correct! if any are wrong let me know what the correct answers would be and how to get that answer! 1. how many moles of sodium chloride are in 28 grams od nacl? a. 265 mole naclb. 856 mole naclc. 479 mole of nacld. 1.2 mole nacl < my choice2. 734 grams of lithium sulfate (li2so4) are dissolved to make 2500 ml of solution what is rhe molaratiy? a. 2.67 mb. 4.56 mc. 3.89 m < my choiced. 1.78 m3. how many grams of cacl2 would be dissolved in 3.0 l of a 0.50 m solution of cacl2? a. 250 g cacl2 b. 166.5 g cacl2c. 113.65 g cacl2d. 98 g cacl2 < my choice4. suppose you had 58.44 g of nacl and you dissolved it in exactly 2.00 liters. the molarity if the solution would be 0.5 mtrue < my choicefalse 5. i would need 22g of naoh to make a 3.0 m solution using 250 ml of solvent. true < my choicefalse6. identify the solute: you have a .0195 m solution made from using 6.5 g of solute and 3 l of solvent. identify the solute by solving for molar weight. a. the solute is nacl because the molar weight is 58.43 g/mol < my choiceb. the solute is h2so4 because the molar weight is 98.06 g/molc. the solute is cacl2 because the molar weight is 111.11 g/mol

What natural processes produce large quantities of co2

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?