what is the percent composition of cu in compound 2?\ncmpd | mass cu (grams) | mass cl (grams)\n1 | 190.6543…
what is the percent composition of cu in compound 2?\ncmpd | mass cu (grams) | mass cl (grams)\n1 | 190.6543 | 106.3512\n2 | 127.1256 | 141.8965\n? percent cu\nround your answer to the hundredths place.
Answer
planation:
Step1: Calculate total mass of compound 2
$\text{Total Mass} = 127.1256 + 141.8965 = 269.0221$ grams
Step2: Find percent composition of Cu
$\text{Percent Cu} = \frac{\text{Mass of Cu}}{\text{Total Mass}} \times 100 = \frac{127.1256}{269.0221} \times 100$
Step3: Compute and round to hundredths
$\text{Percent Cu} \approx 47.2547 \approx 47.25$
Answer:
47.25 percent