<h3>Answer:</h3>
23.1 g of Ca
<h3>Solution:</h3>
It is a simple proportional problem in which we will find either the increased or decreased value of calcium with proportional to Calcium fluoride.
Therefore as given,
15.0 g of pure CaF₂ contains = 7.70 g of Ca
So,
45.0 g of pure CaF₂ will contain = X g of Ca
Solving for X,
X = (45.0 g × 7.70 g) ÷ 15.0 g
X = 23.1 g of Ca
Hence, as the amount of CaF₂ has increased from 15.0 g to 45.0 g therefore, the amount of Ca it contained also increased from 7.70 g to 23.1 g.
Answer:
Charles Law
Explanation:
Charles's law (also known as the law of volumes) is an experimental gas law that describes how gases tend to expand when heated. A modern statement of Charles's law is: This relationship of direct proportion can be written as: V∝T
27 + (35,5 + 2* 16) * 3 = 229.5 g/mol
Equation of reaction
<span>KOH+HNO3--->KNO3+H2O </span>
<span>CA=6.0M, CB=2.0M, VA=?, VB=39ml, na=1, nb=1 </span>
<span>CAVA/CBVB=na/nb </span>
<span>6*VA/2*39=1/1 </span>
<span>6VA/78=1 </span>
<span>6VA=78 </span>
<span>VA=78/6. VA=13ml. </span>
<span>VA=13ml.</span><span>
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