Read the following paragraph carefully, and then show how the scientific method was used by answering the questions below. Emma’s dad makes great pancakes. One morning, Emma’s dad decided to try a new pancake recipe. The pancakes were a disaster. What could have happened? He had always made terrific pancakes. Hedidn’t want his family to think he had lost his pancake-making touch, so he decided to investigate why hisnew recipe was a flop. He checked the temperature on his stove. He checked to make sure the pan hehad used was clean. He checked to make sure he had used the right ingredients. What could it be? As here-read the recipe, he noticed that it did not call for eggs. He had used eggs in every other pancake recipehe had tried. Could this be what went wrong? But how many eggs should he add? He tried the recipeagain, adding one egg. The results were not so great. He tried again, adding two eggs. Much better!Would the recipe be even better if he added three eggs? He tried it. No; the pancakes weren’t better. Hetried the recipe several more times, adding two eggs each time. That was it! The recipe needed two eggs. Now, he cooks perfect pancakes every time.

Required:
What was the problem?

The problem in this experiment in form of a question is: HOW MANY EGGS DOES THE NEW PANCAKE RECIPE REQUIRE TO MAKE A PERFECT PANCAKE?

Explanation:

Every scientific experiment begins with a scientific question. A problem is observed by a researcher or scientist, who then asks a question based on the observed problem. This part is very pivotal and hence, must precede any scientific investigation.

In this question, Emma's dad is said to be great at making pancakes. He then decides to try out a new pancake recipe which turned out bad. This caused him to want to investigate. However, in order to investigate, a PROBLEM MUST BE OBSERVED. He observed that the varying amount of eggs he tried determined the outcome of the new pancake recipe. Hence, the problem in this case is the amount of eggs required make a perfect pancake out of the new recipe.

A scientific question will then be asked based on the observed problem. The question is as follows: HOW MANY EGGS DOES THE NEW PANCAKE RECIPE REQUIRE TO MAKE A PERFECT PANCAKE?

1.consider the following balanced equation and answer parts a through. show calculations for each part.  

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)  

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.  

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3  

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.  

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.  

explanation: