Answer:
3.14 grams of ammonium thiocyanate must be used to react completely with 6.5 g barium hydroxide octahydrate.
Explanation:
The balance chemical equation is :
Mass of barium hydroxide octahydrate = 6.5 g
Moles of barium hydroxide octahydrate =
According to reaction, 2 moles of ammonium thiocyanate reacts with1 mole of barium hydroxide octahydrate. The 0.020635 moles of barium hydroxide octahydrate will react with:
Mass of 0.04127 moles of ammonium thiocyanate;
3.14 grams of ammonium thiocyanate must be used to react completely with 6.5 g barium hydroxide octahydrate
If they have 3 chemistry classes with 24 students, than there are 72 students in total. Each student requires 4 test tubes. 72 * 4 = 288 test tubes. Our answer is C.) 288 test tubes
The full decimal is 2.59328...
When you round up the answer is 2.6 atoms of Li
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Answer:
(a) 0.0345 g/cm^3
Explanation:
<u>Given:</u>
Edge length of cube (a) = 0.750 m
Mass = 14.56 kg
<u>To determine:</u>
The density of the cube
<u>Calculation:</u>
Unit conversions:
1000 g = 1 kg
Therefore, the mass of cube in g = 14.56*10³ g
10⁶ cm³ = 1 m³
Therefore the volume of the cube in cm³=0.422*10⁶cm³
Based on equation (1)