Answer:
None of them
Explanation:
The number of moles in 75ml is 0.01875moles while in 25ml is 0.004375 and in 129 ml is 0.018705.
REMEMBER: Molarity is the number of moles per litre so in order to get the number of moles you multiply the molarity of the substance by the quantity of the substance in litres.
Answer:
The answer is B - At dynamic equilibrium, the reactions continue but the amounts of reactants and products do not change.
Explanation:
got it right on Edge
Answer: Objects with like charge repel each other.
For calculating mean value, add up all of the values then divide by the number of them. 815/9 is about 90.6
<h3>What is mean value?</h3>
The mean refers to the average of a set of values. The mean can be computed in a number of ways, including the simple arithmetic mean (add up the numbers and divide the total by the number of observations), the geometric mean, and the harmonic mean.
Moreover, the mean can be used to represent the typical value and therefore serves as a yardstick for all observations. For example, if we would like to know how many hours on average an employee spends at training in a year, we can find the mean training hours of a group of employees.
Hence, the mean can be calculated only for numeric variables, no matter if they are discrete or continuous. It's obtained by simply dividing the sum of all values in a data set by the number of values.
Learn more about mean value:
brainly.com/question/14882017
#SPJ2
<h3><u>Answer;</u></h3>
≈ 18,116,438 N/m² or 18,116,438 Pascals
<h3><u>Explanation;</u></h3>
- Pressure is the force exerted on a unit area.
- Thus pressure is given by; Force/ Area. Therefore, pressure is measured in N/m² or pascals.
In this case, the force is 52,900 Newtons
The area = 2,920 cm²
But; 1 m² = 1000000 cm², thus;
Area = 2,920 cm²/ 1000000 cm²
= 0.00292 m²
Pressure = 52,900 Newtons/ 0.00292 m²
= 18,116,438.356 N/m²
≈ 18,116,438 N/m² or 18,116,438 Pascals
