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4 years ago

Write the correct formula for Barium Phosphate when Ba2+ bonds to PO43

1 answer:

4 0

When Ba²⁺ and PO₄³⁻ reacts Barium phosphate is formed. the correct formula for Barium Phosphate is Ba₃(PO₄)₂
Ba²⁺ and PO₄³⁻ are charged so they are ions,Ba²⁺ is a cation because it is positively charged and PO₄³⁻ is an anion because it is negatively charged, when they reacts negative and positive charge attracts each other and a neutral salt is formed which is barium phosphate (Ba₃(PO₄)₂).

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The airbags that protect people in car crashes are inflated by the extremely rapid decomposition of sodium azide, which produces

Oxana [17]

Answer:

1. NaN₃(s) → Na(s) + 1.5 N₂(g)

2. 79.3g

Explanation:

<em>1. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid sodium azide (NaN₃) into solid sodium and gaseous dinitrogen.</em>

NaN₃(s) → Na(s) + 1.5 N₂(g)

<em>2. Suppose 43.0L of dinitrogen gas are produced by this reaction, at a temperature of 13.0°C and pressure of exactly 1atm. Calculate the mass of sodium azide that must have reacted. Round your answer to 3 significant digits.</em>

First, we have to calculate the moles of N₂ from the ideal gas equation.

$P.V=n.R.T\\n=\frac{P.V}{R.T} =\frac{1atm.(43.0L)}{(0.08206atm.L/mol.K).286.2K} =1.83mol$

The moles of NaN₃ are:

$1.83molN_{2}.\frac{1molNaN_{3}}{1.5molN_{2}} =1.22molNaN_{3}$

The molar mass of NaN₃ is 65.01 g/mol. The mass of NaN₃ is:

$1.22mol.\frac{65.01g}{mol} =79.3g$

5 0

3 years ago

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mina [271]

Answer:

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igor_vitrenko [27]

Answer:

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