Answer:
The solvent is deionised water
The solute is AgNO3
The solution is [Ag(aq) + NO3(aq)-]
Explanation:
- This is because it contains no ions which would otherwise react with AgNO3 thus AgNO3 just disolves releasing free Ag+ and NO3- . The resiltant solution can test for Cl presence
- AgNO3 is a soluble salt in water thus disolves in water
- AgNO3 disolves releasing free ions which can be called ionisation
14 electrons because there are 7 orbitals (2x7=14)
Answer:
22.656 grams of oxygen gas are there in a 2.3L tank at 7.5 atm and 24° C
Explanation:
An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T). The relationship between them constitutes the ideal gas law:
P * V = n * R * T
where R is the molar constant of the gases and n the number of moles.
In this case you know:
- R= 0.082
- T= 24 °C= 297 °K (being 0°C=273°K)
Replacing:
Solving:
n=0.708 moles
Knowing that oxygen gas is a diatomic gas of molecular form O₂ and its mass is 32 g / mole, you can apply the following rule of three: if 1 mole contains 32 grams, 0.708 moles, how much mass will it have?
mass= 22.656 grams
<u><em>22.656 grams of oxygen gas are there in a 2.3L tank at 7.5 atm and 24° C</em></u>
Answer:
Plants use photosynthesis to make glucose. Glucose is also know as sugar. You can tell it is present if the plant receives sunlight as well as water.
Explanation:
MARK BRAINLIEST
Answer:
a. [H+]= 1.35x10^-5 M
b.5.4x10^-3%
Explanation:
a) pH= - log [H+]
[H+]= 10^-pH [H+]= 10^-4.87 [H+]= 1.35x10^-5 M
b) HCN -> H + CN at equilibrium [H+]=[CN-]
0.250 M -> 100%
1.35x10^-5 M ->x
x=(1.35x10^-5 M * 100)/0.250M
x=5.4x10^-3%