Answer:
There are 70 grams of KOH
Explanation:
First, we calculate the weight of 1 mol of KOH:
Weight 1 mol KOH: Weight K + Weight 0 + Weight H= 39g+ 1g+ 16g= 56 g/mol
1 mol-------56 g KOH
1,25 mol----x= (1,25 molx56 g KOH)/1 mol= <em>70 g KOH</em>
Answer:
The final temperature is 20.3 °C
Explanation:
Considering that:-
Heat gain by water = Heat lost by brass
Thus,
Where, negative sign signifies heat loss
Or,
For water:
Mass = 300.0 g
Initial temperature = 20.0 °C
Specific heat of water = 4.184 J/g°C
For brass:
Mass = 19.0 g
Initial temperature = 81.7 °C
Specific heat of water = 0.375 J/g°C
So,
<u>Hence, the final temperature is 20.3 °C</u>
Answer:
Chocolate melts and becomes really sticky once heated.
Add-on:
hope that helped at all.
Sr N(e⁻)=38
Sr²⁺ N(e⁻)=38-2=36
36e⁻
Answer:
mixture
Explanation:
the other logical option would be compound but a compound consists of 2 or more chemically bonded elements and salad dressing nor raisin brand are elements.
