Answer:
percipitate or sedements from chemical reactions
Answer: (A) It appears as a reactant in the net chemical reaction
Explanation:
A catalyst is A substance that speed up the chemical reaction without its self being consumed in the reactants or the products.It does this by lowering the activation energy of the reaction by speeding up the rate of reaction.
Answer:
- 637.636 mL of NaF
- 0.7014 moles of SrF2
Explanation:
= 
Where 1 and 2 represent NaF and SrCl2 respectively; and C and V ae concentration and volume.
0.110 × V1 = 0.420 × 167
<em>V1 = </em>
<em> = 637.636 mL ≈ 0.638 L.</em>
Mole ratio of SrF2:
mole ratio of SrCl2 : SrF2 is 1 : 1 (also, conc × vol = no. of moles )
<em>∴ moles of SrF2 = 0.7014.</em>
Based on the equation of the reaction, nitrogen is the limiting reagent while hydrogen is the excess reagent.
<h3>What is the mole ratio of hydrogen to nitrogen in the formation of ammonia?</h3>
Hydrogen and nitrogen combines to form ammonia ina mole ratio of 3 : 1 as shown by the equation of the reaction below:
The number of moles of the reactants in 14g of Nitrogen gas and 8.0g of hydrogen is calculated as follows:
Molar mass of N_{2} = 14.0 g
Molar mass of H_{2} = 2.0 g
Moles of N_{2} = 14/14.0 = 1 mole
Moles of H_{2} = 8/2.0 = 4 moles
Based on the data above:
- The limiting reagent is nitrogen gas as it will be used up while hydrogen will be left over.
- The moles of nitrogen is 1 mole
- Hydrogen is the excess reagent and 1 mole will be left over
- 3 moles of hydrogen will react with 1 mole of the nitrogen gas
- mass of 3 moles of hydrogen is 3 × 2.0 g = 6.0g
Therefore, the limiting reagent is nitrogen while hydrogen is the excess reagent.
Learn more about limiting reagent at: brainly.com/question/24945784
