What is the mass, in g, of 28.70 ml of acetone? express your answer using four s

Question

What is the mass, in g, of 28.70 ml of acetone? express your answer using four significant figures. Please help, I have two attempts remaining

ANSWER 1: Deduction:-3% Part A m= 28.7 g What is the mass, in g, of 28.70 mL of acetone? Express your answer using four significant figures ANSWER 2: Deduction:-3% m= 22.74 Not quite. Check through your calculations; you may have made a rounding error or used the wrong number of significant figures. m 22.70 ANSWER 3: Deduction:-3% Submit My Answers Give Up m= 22.73 g Incorrect; Try Again; 2 attempts remaining Not quite. Check through your calculations; you may have made a rounding error or used the wrong number of significant figures. Not quite. Check through your calculations; you may have made a rounding error or used the wrong number of significant figures ANSWER 4: Deduction:-3% m= 22.70 g Part B What is the volume, in mL, of 6.68 g of acetone? Not quite. Check through your calculations; you may have made a rounding error or used the wrong number of significant figures.

Explanation / Answer

Answer, .........22.51 g.

Explanation :

The mass of 28.70ml of acetone would depend upon temperature at which density of acetone is considered for calculations involved since ,

Mass of acetone = density of acetone x volume of acetone   

It should be noted that the density of acetone at

20o C is 0.78998 g / ml.

25o C.......0.78440 g / ml

30o C.......0.78053 g / ml

hence ,considering 25o C as standard temperature, the mass of 28.7 ml acetone is-

= ( 28.7 x 0.7844 )   

= 22.51228 gms

or, = 22.51 gms.

Note -,

given the temperature relating to volume of acetone,its mass can be calculated which should be different depending upon the temperature being considered.

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