Left side:
Mg= 1
O= 2
H= 4
Cl= 2
Right side:
Mg= 1
O= 2
H= 4
Cl= 2
The molarity of a solution that has 26 moles of NaCl in 2.7L of water is 9.63M.
<h3>How to calculate molarity?</h3>
The molarity of a solution can be calculated by dividing the number of moles of the solute by the volume of the solution as follows:
Molarity = no of moles ÷ volume
According to this question, a solution has 26 moles of NaCl in 2. 7 l of water. The molarity is as follows:
Molarity = 26mol ÷ 2.7L
Molarity = 9.6M.
Therefore, the molarity of a solution that has 26 moles of NaCl in 2.7L of water is 9.63M.
Learn more about molarity at: brainly.com/question/2817451
Answer:
%age Yield = 42.9 %
Explanation:
Percentage Yield is defined as the actual yield divided by theoretical yield. It is given as,
%age Yield = Actual Yield / Theoretical Yield × 100 --- (1)
Also,
Actual Yield is the amount of desired product which is obtained after an experiment is completed. We can also call it the real yield which is obtained practically. While, theoretical yield is the yield which is calculated on paper. Hence, we can say that the actual yield is always less than theoretical yield due to many reasons including reaction conditions and researcher handling problems.
Thus we are given following data;
Theoretical Yield = 1.70 g
Actual Yield = 0.73 g
Putting these values in Eq. 1,
%age Yield = 0.73 g / 1.70 g × 100
%age Yield = 42.9 %
<span>Exothermic reactions have a potential energy difference between the products and reactants that is negative. </span>
Answer:
Becuse magnesium is a earth alkaline metal and oxygen is a nonmetal(read explanation)
Explanation:
Magnesium has 2 valence electrons where oxygen has 6 valence electrons. Magnesium has tendency to give electrons to oxygen and oxygen has tendency to gain electrons. They are both trying to complete their last shell to 8 which is called the octet rule. Because they both want to complete each other because of the reasons that I told they combine to be stanle atoms like noble gases.