Answer:- 5.91%
Solution:- The given balanced equation is:
From given moles of zinc iodide we calculate the moles of zinc carbonate using mol ratio from the balanced equation and the moles are converted to grams on multiplying by molar mass.
=
Molar mass of zinc carbonate is 125.38 gram per mol. Let's multiply the moles by molar mass to get the theoretical yield:
=
theoretical yield is 213.15 g and the actual yield is given as 12.6 g.
percent yield =
percent yield =
= 5.91%
The percent yield of zinc carbonate is 5.91%.
Answer:
DNA and RNA are different from their structure, functions, and stabilities. DNA has four nitrogen bases adenine, thymine, cytosine, and guanine and for the RNA instead of thymine, it has uruical. Also, DNA is double-standed and RNA is single stranded which is why RNA can leave the nucleas and DNA can't
Answer:
The metal is not gold.
Explanation:
- It is known that the density of gold (d) = 19.32 g/mL.
- We need to calculate the density of the given data of the metal and compare with the theoretical density value:
<em>Density (d) = mass/volume </em>
<em></em>
∴ d of metal = mass/volume = (8.7 g)/(3.2 mL) = 2.72 g/mL.
<em>So, the metal is not gold.</em>
Kinetic energy will be the least when it reaches maximum height in the air.
PE will be maximum and KE will be zero.
The rate of reaction increases