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3 years ago

Please help me :( I’ll give brainlist

Chemistry

2 answers:

luda_lava [24]3 years ago

7 0

Answer:

76. 726

Explanation:

0.454 × 169

Hope this helps

LiRa [457]3 years ago

4 0

Answer:

76.726 kg

Explanation:

1 lb = 0.454 kg

169 lb

= 169 x 0.454

= 76.726 kg

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Answer: The percentage by mass of NaCl in the mixture is 38.5 %

Explanation:

To calculate the mass percentage of element in compound, we use the equation:

$\text{Mass percent of element}=\frac{\text{Mass of element}}{\text{Mass of compound}}\times 100$ .......(1)

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Percent by mass of Na in the mixture = 31.8 %

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Evaluating the mass fraction of NaCl in the mixture:

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