Question

The combustion of phosphorus trichloride yields diphosphorus pentoxide and dichlorine monoxide. How many liters of oxygen are needed to burn 25.0 L of PCl3?

All I need help with is the balanced reaction please

Answer 1

Answer:1. How many moles is 400.0 g of Al 2(SO4)3?

Mol = mass/molar mass

Mol = 400.0g/342g/mol = 1.169 mol

2. Which is the percent composition of bromine in the compound NaBr?

% Br = (mass Br/mass NaBr) x 100

% Br = (79.90g/102.88g) x 100 = 77.7%

3.How many molecules are in 3.6 grams of NaCl?

Molecules NaCl = 3.6g NaCl x 6.02 x 1023 NaCl molecules = 3.7 x 1022 molecules

58.43g NaCl

4.How many grams are in 1.946 moles of NaCl?

From Mol = mass/molar mass,

Mass = mol x molar mass

Mass NaCl = 1.946 mol x 58.43 g = 113.7 g

Step-by-step explanation: