The product that is soluble in water would be potassium nitrate or KNO3 while it is silver carbonate (Ag2CO3) that would form a solid precipitate after the reaction. Ag2CO3 is insoluble in water. One indication would be the presence of the silver ion. Almost all of the compounds of silver are insoluble or has poor solubility in water.
Answer:
The answer is B.
Explanation:
Trust me i took the test already its b.
Answer:
The gas will occupy a volume of 4000L
Explanation:
V1 = 2000L
T1 = 100K
P1 = 100kPa = 100*10³Pa
T2 = 400k
P2 = 200kPa = 200*10³kPa
V2 = ?
To solve this question, we need to use combined gas equation
[(P₁ * V₁) / T₁] = [(P₂ * V₂) / T₂]
V₂ = (P₁ * V₁ * T₂) / (P₂ * T₁)
V₂ = (100*10³ * 2000 * 400) / (200*10³ * 100)
V₂ = 8.0*10¹⁰ / 2.0*10⁷
V₂ = 4000L
The new volume of the gas is 4000L
Answer:
59K
Explanation:
Using the general gas law equation:
PV = nRT
Where;
P = pressure (atm)
V = volume (L)
n = number of moles (mol)
R = gas constant (0.0821 Latm/molK)
T = temperature (K)
According to the information given in the question;
- mass of hydrogen gas = 20.2g
mole = mass/molar mass
mole = 20.2/2.015
mole = 10.01mol
- Pressure = 110 Kpa
1 kilopascal = 0.00987 atmosphere
110kPa = 110 × 0.00987
= 1.09atm
- Volume = 4.45 x 10^-2 kL
1 kL = 1000L
4.45 x 10^-2 kL = 4.45 x 10^-2 × 10³
4.45 × 10¹
= 44.5L
Using PV = nRT
T = PV/nR
T = 1.09 × 44.5/0.0821 × 10.01
T = 48.505/0.821
T = 59.02
T = 59K