Answer: sorry I’m late but it is 11 electrons
Explanation:
Answer:
-173.15°C
Explanation:
Given data:
Temperature changes = 100 K
Temperature changes in degree Celsius = ?
Solution:
Kelvin and degree Celsius both are units of temperature.
In order to convert the degree Celsius to kelvin following equation is used.
Temperature in degree Celsius +273.15
For example;
100°C to kelvin = 100+273.15 = 373.15 K
To convert the kelvin into degree Celsius:
100K - 272.15 = -173.15°C
Dropping a 50 gram piece of metal with a temperature of 125° Celsius into 1000 grams of water at 20° Celsius would lead to a heat loss by the metal and an heat gain by the water. These loss and gain should be equal since energy cannot be created nor destroyed.
Answer:
0.01 M
Explanation:
The chemist is performing a serial dilution in order tyo obtain the calibration curve for the instrument.
First we must obtain the concentration of the solution in the 250ml flask from
C1V1 = C2V2
Where;
C1 = concentration of the stock solution
V1 = volume of the stock solution
C2 = concentration of the diluted solution
V2= volume of the diluted solution
2.61 × 10 = C2 × 250
C2 = 2.61 × 10/250
C2 = 0.1 M
Hence for solution in 100ml flask;
0.1 × 10 = C2 × 100
C2 = 0.1 × 10/100
C2 = 0.01 M