Hflores11 Hflores11

02-09-2020
Chemistry

contestada

If the density of a substance is d=2.1g/cm^3 what is the mass of 20.0mL of this substance

Respuesta :

linahamdan1980 linahamdan1980

10-09-2020

Answer:

Explanation:

density = mass (g)/ volume (cm3)

2.1 = mass / 20 cm3

mass = 42 g

be attention that each 1 ml =1cm3

Answer Link

Otras preguntas

PLEASE HELP Which of the following describes the efficiency of real machines? 1.Efficiency is 100% 2.IMA is always larger than the AMA 3.IMA is always smaller t

A 400 kg machine is placed at the mid-span of a 3.2-m simply supported steel (E = 200 x 10^9 N/m^2) beam. The machine is observed to vibrate with a natural freq

find the sum 7+7(2)+7(2^2)+...+7(2^9)

Maddie is the CEO of Stevenson, Ross, and Warner (SRW), a regional accounting firm. SRW offers services in most areas of accounting, including auditing and cons

Factor completely 3x^2 - x - 4 A.(3x - 4)(x + 1) B.(3x + 4)(x - 1) C.(3x - 2)(x + 2) D.(3x - 1)(x + 4)

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ = 24.2 σ

Jerome cannot open his term paper on his computer because the file has become corrupt. Kaci cannot find her term paper on her computer because of all the other

iv)6x+3y=6xy2x + 4y= 5xy

The melting points of ionic compounds _____

The projected worth (in millions of dollars) of a large company is modeled by the equation w = 221(1.09) t. The variable t represents the number of years since