A 2.5L solution of hand sanitizer has a density of 1.25g/mL, what is the mass of the solution in grams?

313 g

Explanation:

The formula for density is in Litters (L).

Given that the density is 1.25 and that the solution is 2.5

You first have to plug in what is given into the density formula like so but note that the answer is in milliliters not Litters so you have to convert in milliliters like so or Which equals 2,500mL next you do simple math like so

or the Mass

 but that not the answer because you need to round to 3 significant figure so your actual answer is  

it is to be noted that an alpha particle is an helium nucleus. so it contains 2 protons 2 neutrons and has a mass number of 4. when alpha decay particles are ejected from the nucleus it gets transformed into an atom which has atomic number less than 2 and a mass number less than 4.

an equation that could represent alpha decay is radium 226 decay of alpha particle forms radon 222.

→

consider the reaction below.

 no rx

at 500 k, the reaction is at equilibrium with the following concentrations.

[pci5]= 0.0095 m

[pci3] = 0.020

[ci2] = 0.020 m

what is the equilibrium constant for the given reaction?

0.042

0.42

2.4

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