Answer: 175.35g
Explanation: A 3 M solution has 3 moles of solute per litre.
The mass of one mole of NaCl equals the MW of NaCl MW = 35.45 + 23 =58.45 g/mol
The mass of 3 moles is 58.45 g/mol ×3 mol=175.35 g NaCl or 200 g rounded to one sigfig.
The elephant has more inertia than the dog so it takes more force to change the motion of the elephant.
The formula that shows the correct representation of the combined gas law is; V1P1 / T1=V2P2 / T2
The combined gas law is obtained from the statements of Charles law and Boyle's law as follows;
Charles law; V/T = k
Boyle's law = PV = k
Combining the two I have; PV/T = k
For two masses of an ideal gas;
V1P1 / T1=V2P2 / T2
This is the statement of the combined gas law.
Learn more: brainly.com/question/1190311
In determining a concentration, we need to convert the result into Grams / Liter
We already have the correct conversion of the weight , now we just need to convert the water volume into Liter :
185.8 / 1000 = 0.1858 L
The concentration is :
weight / volume
= 13.7 gram / 0.1858 L
= 73.73 gram/liter
Answer:
NaNO3
Explanation:
When you're dealing with the rules of solubility (Which compounds dissolve in water), there's a set of numbered rules you can follow. You can find them in your textbook, but here's a short cut:
ANY, ANY, ANY compound that contains any of the following is soluble in water no mater what!
Na, NO3, NH4, K, ClO4, CH3COO
If you see sodium, nitrate, ammonium, perchlorate or acetate in the compound, it is soluble in water...
