Answer:
Adenine forms two hydrogen bonds with thymine;
guanine forms three hydrogen bonds with cytosine
Explanation:
There are three hydrogen bonds between guanine and cytosine. Between adenine and thymine, two hydrogen bonds form. Complementary pairs always include one base of purine and one base of pyrimidine.
Lemonade is an example of a solution.
A solution is a combination of two or more substances that form a single phase.
Lemonade consists of several substances that are homogeneously combined in the solution.
The presence of lemon juice makes the lemonade to have a yellow color but the presence of sugar makes it sweet among other components of the solution mixture.
Learn more: brainly.com/question/5139963
Answer:
0.0953M
Explanation:
First, let us calculate the number of mole present in 12.5g of Na2CrO4.
Molar Mass of Na2CrO4 = (23x2) + 52 +(16x4) = 46 + 52 +64 = 162g/mol
Mass of Na2CrO4 = 12.5g
Number of mole =?
Number of mole =Mass /Molar Mass
mole of Na2CrO4 = 12.5/162 = 0.0772mol
Now, we can calculate for the molarity as follows:
Mole = 0.0772mol
Volume = 810mL = 810/1000 = 0.81L
Molarity =?
Molarity = mole /Volume
Molarity = 0.0772mol/0.81L
Molarity = 0.0953M
If data results a reproducible but not accurate, it means that there was a high level of precision, but not complete accuracy.
