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On a roulette wheel, the probability of "red" is 18/38, In 10 spins what is the probability of exactly 8 red outcomes?
A gas has a volume of 28 liters at STP. Calculate the pressure if the temperature is increased to 35°C and the volume is decreased to 15 liters
3. Why during the PCR is there a temperature change for certain times and what is the function of these cycles of different temperatures? explain.
• During the PCR, the temperature change for certain times is designed in order to carry out the exponential amplification of the small DNA fragment by chain polymerization.
• Cycles are rendered in a basic three step process which is repeated 25-40 times:
• 1st step: separates the DNA double strand for a period of 15-40 seconds at a temperature of 95º C -97º C.
• 2nd step: designed primers react with the single stranded DNA thus sticking complementary to other bases in a period of 0.5-2min. at a temperature of 40º C- 65º C.
• 3rd step: dNTPs are placed between the primers synthesizing complementary sequence to template DNA strands for a period of 1-2 min. at a temperature of 72º C.
45.2g of Iron metal reacts with excess Oxygen gas to produce 58.1g of Fe 3 0 4 a. What is the theoretical yield of F*e_{3}*O_{4} ? b. What is the percent yield of this reaction?
input:
4
after
a b c d
f e f g
t e r r
a b i j
output wants to come : [(0, 0),(1, 0),(2, 0),(2, 1),(2, 2)]
4
search
s e a c
r c c c
h e e e
h e e e
output wants to come: "Not Present"
Tic Tac Toe -2
Ravans dream in to win the Tic Tac Toe campionship to accomplish this he practices alone at home to learn the strategies the game .your tast is to identify the cell where Ravan should place the third piece so that the wins the game Assume the each cell in the tic tac toe board in marked a number as shown in the table below
Tic Tac Toe
0 1 2
3 4 5
6 7 8
input
the first line of input contains space-seperated integers representing the cells where Ravan his first two pieces
output
the output should be single integers representing cell where Ravanshould places his final place
sample input 1
0 1
sample output 1
2
sample output 2
0 3
sample output 2
6
4. Create a program that will plot the equation of the line y=mx+b using an array.
array1 ==> x - input by user
m = constant - input by user
b = constant - input by user
array2 ==> y - computed
Create a program with a one-dimensional array that searches for a number within the array, and how many times the number appears on the array.
In an experiment, 57.4 g of iron (II) chloride solution reacts with 45.3 g of sodium hydroxide solution.
FeCla(an) + 3NaOH(an) -› Fe(OH) scs) + 3NaC|(ag)
Which reactant is the limiting reagent?
How much (in grams) of each product forms?
How much of the excess reagent (in grams) will be leftover after the reaction is complete?
When a solution containing excess Sodium sulfate is added to a second solution containing 3.18 g of Barium nitrate, Barium sulfate precipitation. a. Calculate the theoretical yield of barium sulfate. b. If the actual yield is 2.69 g. Calculate the percent yield.
#340153 on Dec 2023