11-09-2018
Chemistry

contestada

a powder has a mass of 40.0g when the powder is added to 30.0ml of water the total volume is 45.0ml what is the denaity of the powder

Respuesta :

Wilfredjr Wilfredjr

11-09-2018

mass = 40.0g
initial volume = 30.0 cm3
finial volume = 45.0 cm3

Volume= Displacement of Final - Initial
V = 45.0 -30.0 = 15.0 dm3

Density = Mass ÷ Volume

D= 40.0g ÷ 15.0 dm3

D= 2.67 g/dm3

Answer Link

Otras preguntas

Eukaryotic DNA occurs within the cells A)Golgi apparatus B) cytoplasm C) nucleus D) none of the above

31% of what is 89.9.

what 2 ways could you increase the momentum of an object?

Is this question proportional or in proportional? why or why not? Oleg ran 8.8 in 1 hour 20 minutes. Assuming he continues at a constant rate, how long will i

is it possible for two different objects to have the same velocity but at different speeds?

Write three numbers that's are geater then 75,300,000 but less then 75,400,000

I have 18 ones,15 hundreds,15 tens,and 8 thousands.what number am i?

Blood cells have a rigid cell wall. True or False?

why did lord ashley and the other proprietors want to place settelments in carolina

The table lists the values for two parameters, x and y, of an experiment. What is the approximate value of y for x = 4?