<span>The
stable form of salt at standard temperature and pressure is solid. If you add
water to salt, it will dissolve. However, there are certain factors that affect
the rate of solution formation of salt. The rate of formation of salt solution
is faster when the vial is agitated than when it is not agitated. By agitating
the solution, you are increasing the surface area of the salt particles in
contact with water.</span>
Answer:
P₄O₆
Explanation:
The molecular formula is a whole number multiple of the empirical formula. that is, if the mole wt is 219.9 gms/mole and the empirical formula weight is 110 gms/mole*, then the whole number multiple is 219.9/110 = 2 => Molecular formula => (P₂O₄)₂ => P₄O₆.
Hydrochloric acid is usually purchased in a concentrated form that is 37.0% HCl by mass and has a density of 1.20g/mL. Calculate the molarity of the concd HCl.
1.20 g/mL x 1000 mL x 0.37 x (1/36.5) = about 12 M or so but you do it exactly.
Then mL x M = mL x M
mL x 12 M = 2800 mL x 0.475
Solve for mL of the concd HCl solution.
The answer is 8. Hope this helps.
1 - energy 2- heat 3 -plant
