Answer:
Hydrochloric acid + sodium hydroxide -> sodium chloride + water
Sulphuric acid + copper hydroxide -> copper sulphate + water
Nitric acid + sodium hydroxide -> sodium nitrate + water
Hydrochloric acid + calcium hydroxide -> calcium chloride + water
Sulphuric acid + potassium hydroxide -> potassium sulphate + water
Hydrochloric acid + lithium hydroxide -> lithium chloride + water
Nitric acid + magnesium hydroxide -> magnesium nitrate + water
Answer:
(1) 0.0016 mol/L
Explanation:
Let the concentration of alcohol after 3.5 hours be y M
The reaction follows a first-order
Rate = ky^0 = change in concentration/time
k = 6.4×10^-5 mol/L.min
Initial concentration = 0.015 M
Concentration after 3.5 hours = y M
Time = 3.5 hours = 3.5×60 = 210 min
6.4×10^-5y^0 = 0.015-y/210
y^0 = 1
0.015-y = 6.4×10^-5 × 210
0.015-y = 0.01344
y = 0.015 - 0.01344 = 0.00156 = 0.0016 mol/L (to 4 decimal places)
A “supersaturated” solution contains more dissolved material. supersaturated solutions lies in the temperature of the water. more sugar will dissolve in hot water than in cold. Meaning that by separating the 2, only the supersaturated sugar would dissolve leaving the regular sugar untouched.
Answer:
<h2>8.03 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula
From the question we have
We have the final answer
<h3>8.03 g/mL</h3>
Hope this helps you
Answer:
DECREASE BY A FACTOR OF FOUR
Explanation:
Using pressure equation:
P 1 / T1 = P2 /T2 (at constant volume)
P1 = P
T1 =T
P2 = ?
T2 = 4 T
So therefore;
P2 = P1T1/ T2
P2 = P T/ 4 T
P2 = 1/4 P
The pressure is decreased by a factor of four, the new pressure is a quarter of the formal pressure of the gas.
