The second one is correct.
the concentration has been given as g/L. this is the mass of solute that can be dissolved in 1 L solution.
the concentration of the solution that needs to be prepared - 3.81 g/L
the mass of sodium nitrate is - 5.40 g
the volume needed for 3.18 g - 1 L
then the volume needed for 5.40 g - 1/3.18 x 5.40
volume of water needed - 1.42 L
Answer:
When the act or process of a transmission stops
Explanation:
Answer:
Apr 06, 2018 · Matter can be divided into two different categories: pure substances and mixtures. If the matter has just one type of element or one type of molecule, it is a pure substance. If matter has more than one atom and/or molecule, then it is a mixture. Glucose is a pure substance.
Explanation:
Answer:
X has 9 Electrons, 9 Protons and 10 Neutrons
X is Fluorine
Explanation:
19 in X is Nucleon number
So, if you minus 19 by 9 down there (which is proton number) you'll get 10 (Neutron number).
Now, Proton = Electron. That's why Electron is 9 too. I figured that X is Fluorine bcuz it has 9 Electrons. If you venture around in the periodic table, fluorine is the ninth element innit.
hope this helps ya ＼(^o^)／
