I believe the answer is three bonds. ☺
Answer:
Explanation:
According to the law of definite proportions, particles in a compound combine by a defined stoichiometric ratio. This ratio is also calculated in terms of moles.
In order to find the ratio between the particles in a compound, we need to find the molar ratio of each species.
Notice that the ratio between the number of moles of zinc to the number of moles of nitrogen is:
This means if we are given 1 zinc ion, we expect to have a total of 2 nitrogen atoms. Therefore, x = 2.
Answer:
- <em><u>% of calcium carbonate = 28.8%</u></em>
Explanation:
The <em>percentage </em>of a substance in a mixture is calculated with the formula:
- % of substance = (mass of substance / mass of mixture) × 100
In this case we have:
- mass of substance = mass of <em>calcium carbonate</em> = 1.73 g
- mass of<em> mixture</em> = mass of <em>calcium carbonate</em> + mass of <em>sodium carbonate</em> + mass of <em>magnesium sulfate</em>
- mass of <em>mixture</em> = 1.73 g + 2.34 g + 1.93 g = 6.00 g
Now you can substitute the values in the formula for percentage:
- % of substance = (1.73g / 6.00g) × 100 = 28.8%
Answer:
Percent Yield = 80%
Explanation:
Percent yield of a reaction is defined as one hundred times the ratio between the actual yield and the theoretical yield. That is:
Percent yield = Actual Yield / Theoretical Yield * 100
<em>Where theoretical yield of CaHPO4 is 10g and actual yield is 8g</em>
Replacing:
Percent yield = 8g / 10g * 100
<h3>Percent Yield = 80%</h3>