Respuesta :
Answer: 157.8 g
Explanation: I hope this help my child UwU
What is the weight of the ethyl alcohol that exactly fills a 200.0 mL container the density of ethyl alcohol is 0.789 g ml?
Density review
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What is the weight of the ethyl alcohol that exactly fills a 200.0 mL container? The density of ethyl alcohol is 0.789 g/mL.
g = (0.789 g/mL) (200.0 mL) = 158 g
Answer:
[tex]\boxed {\tt 197.25 \ grams }[/tex]
Explanation:
The density formula is:
[tex]d=\frac{m}{v}[/tex]
Rearrange the formula for m, the mass. Multiply both sides of the equation by v.
[tex]d*v=\frac{m}{v} *v[/tex]
[tex]d*v=m[/tex]
Mass can be found by multiplying the density and volume. The density of ethyl alcohol is 0.789 grams per milliliter. The alcohol fills a 250 milliliter graduated cylinder, so the volume is 250 milliliters.
[tex]d= 0.789 \ g/mL \\v= 250 mL[/tex]
Substitute the values into the formula.
[tex]0.789 \ g/mL * 250 \ mL=m[/tex]
Multiply. Note that the milliliters, or mL will cancel each other out.
[tex]0.789 \ g * 250=m[/tex]
[tex]197.25 \ g=m[/tex]
The mass of the ethyl alcohol is 197.25 grams.