Moles of Zn(NO3)2 in 143.50 g of this substance Express your answer in moles to four significant figures.

Sorry bro i have lost my digest book so i cannot help u sorry bro

0.76 moles

Explanation:

mole = mass ÷ molar mass

mass = 143.50

molar mass = 189.36

189.36÷143.50 = 0.757 = 0.76

2b2t

explanation:

2b2t

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.