Answer:
0.29 mol/L
Explanation:
Its density is 1.029 g/ml so in a liter (1000 mL) there is 1029 g of solution, but only 5% is dextrose.
0.05x1029=51.45
So in a liter of D5W solution there is 51.45 g of dextrose.
Dextrose molar mass iss 180.156 g/mol, so in 51.45 g of dextrose there is
51.45/180.156=0.29 mol
In one liter of solution there is 0.29 mol of dextrose, so the molarity of such solution is 0.29 mol/L.
Answer:
6NO2+3H2O-------->3HNO2+3HNO3
Answer:
carbohydrate, 6, a carbonyl, disaccharide
Explanation:
Fructose is an example of a ketohexose. The -hexose part of the name indicates that fructose is a carbohydrate that contains 6 carbons. <em>There are more isomers that are ketohexoses.</em>
The keto- part of the name indicates that fructose contains a carbonyl functional group. <em>In ketones, the carbonyl is in an inner carbon.</em>
Fructose can combine with glucose to form sucrose. Therefore, sucrose is a disaccharide. <em>Disaccharides are formed by the bonding of 2 monosaccharides.</em>
Answer:
The longest wavelength is 2.19 × 10⁻⁷ m.
Explanation:
The work function (ф) is the minimum energy required to remove an electron from the surface of a metal. The minimum frequency required in a radiation to submit such energy can be calculated with the following expression.
ф = h × ν
where,
h is the Planck's constant (6.63 × 10⁻³⁴ J.s)
ν is the threshold frequency for the metal
In this case,
We can find the wavelength associated to this frequency using the following expression.
c = λ × ν
where,
c is the speed of light (3.00 × 10⁸ m/s)
λ is the wavelength
Then,
I think First statement that is Option A, because, it has total equilibrium on both side, which will never result in increase of any pH level higher or lower than the state, hence
Option A.) is correct