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What is methane formula 

Nacl which bond takes place 

What is ethanol formula 

What is pressure at see level?

Number bones in human body?

What is the smallest bone in the human body? 

Area of a semicircle

___C4H8 (g) + ____O2 (g) ---> ____CO2 (g) + _____ H2O (g)

(Balance)

Find the number of Na+ ions in 2.92 g of Na3PO4?

How many moles of carbon are required to produce 10 moles of methane?

11×11×11=?

7555×813=?

V. Calculate the mass, in grams, of K2SO4 needed to prepare 32.00 g of 2.000%(m/m) K2SO4 solution.

VI. How many grams of Na2CO3 are needed to prepare 25.0 mL of a 2.00%(m/v) Na2CO3 solution?

VII. What volume of water, in quarts, is contained in 3.50 qt of a 2.00%(v/v) solution of water in 
acetone?

VIII. Calculate the molarity of the following solutions.

a. 3.0 moles of potassium nitrate (KNO3) in 0.50 L of solution

b. 12.5 g of sucrose (C12H22O11) in 80.0 mL of solution

IX. Calculate the number of grams of solute in each of the following solutions.

a. 2.50 L of a 3.00 M HCl solution

b. 10.0 mL of a 0.500 M KCl solution

X. What is the molarity of the solution prepared by diluting 25.0 mL of 0.220 M NaCl to each of the following final volumes?

1. 
   a. 30.0 mL             b. 75.0 mL

How many bromine atoms are present in 36.8g of CH2Br2?