Question

2 (nh₄)₃po₄
ammonium phosphate
how many total atoms are in 2 (nh₄)₃po₄?
32
12
40
64
16

Explanation:

Step1: Calculate atoms in one formula unit

In \((NH_4)_3PO_4\), \(N\): \(3\times1 = 3\), \(H\): \(3\times4 = 12\), \(P\): \(1\), \(O\): \(4\). Total atoms in one formula unit: \(3 + 12+1 + 4=20\).

Step2: Consider the coefficient

The coefficient is \(2\). So total atoms: \(2\times20 = 40\).

Answer:

\(40\)