Question

cs₂
express your answer in atomic mass units to two decimal places.
formula mass = amu
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part b
c₆h₁₂o₆
express your answer in atomic mass units to two decimal places.
formula mass = amu
submit request answer
part c
fe(no₃)₃
express your answer in atomic mass units to two decimal places.
formula mass = amu
submit request answer

Explanation:

Step1: Find atomic masses

Look up atomic masses: C = 12.01 amu, S = 32.07 amu, H = 1.01 amu, O = 16.00 amu, Fe = 55.85 amu, N = 14.01 amu.

Step2: Calculate formula mass for \(CS_2\)

$$12.01+(2\times32.07)=12.01 + 64.14=76.15$$

Step3: Calculate formula mass for \(C_6H_{12}O_6\)

$$(6\times12.01)+(12\times1.01)+(6\times16.00)=72.06+12.12 + 96.00=180.18$$

Step4: Calculate formula mass for \(Fe(NO_3)_3\)

$$55.85+(3\times14.01)+(9\times16.00)=55.85+42.03+144.00 = 241.88$$

Answer:

For \(CS_2\): 76.15 amu
For \(C_6H_{12}O_6\): 180.18 amu
For \(Fe(NO_3)_3\): 241.88 amu