To get a result with the best degree of precision, the
number of significant figures should be equal to the smallest number of
significant figures of the given numbers. In this case, the smallest is 3 as
given by the number 9.03 mL.
Therefore density is:
<span>11.50 g / 9.03 mL = 1.27 g/mL</span>
Answer:
the concentration of new solution = 0.025 M
Explanation:
Given that :
The initial volume V_1 = 15 mL
Initial concentration M_1 = 0.16 M
Final volume V_2 = 95 mL
Final concentration M_2 = ???
We know that M_1 × V_1 = M_2V_2
Making M_2 the subject of the formulae; we have :
M_2 = (M_1 × V_1)/V_2
M_2 = (0.16 × 15)/ 95
M_2 = 0.025 M
Thus, the concentration of new solution = 0.025 M
Answer:
The final temperature of the water is 28.98 degree Celsius.
Explanation:
It is given that,
Mass of sample of water, m = 52 grams
Initial temperature, 
Heat absorbed, 
The specific heat of water is 
We need to find the final temperature of the water. The heat absorbed is given by the formula as follows :
So, the final temperature of the water is 28.98 degree Celsius.
Communication skills were developed so knowledge could be passed along to younger generations.
<h3>How knowledge will pass through generations?</h3>
Knowledge will pass from one generation to another with the help of education. The skill people give education to their youngers about fire and tools. In this way, skills of fire and tools pass from one generation to another.
So we can conclude that communication skills were developed so knowledge could be passed along to younger generations.
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