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What is the percent error for a measured value of 3.24 and a correct value of 3.02?
Percent error is calculated using the formula: ((measured value - correct value) / correct value) x 100. Plugging in the values, we get ((3.24 - 3.02) / 3.02) x 100 = (0.22 / 3.02) x 100 ≈ 7.28%.
How many moles of washing soda are there in 5g?
Washing soda is sodium carbonate, Na2CO3. Using the atomic weights from the periodic table and the subscripts in the formula, the molar mass of Na2CO3 = 106g/mol. 5g Na2CO3 x (1mol Na2CO3/106g/mol) = 0.05mol Na2CO3
What is the percent of error in evaluating the molecular mass of a compound if the experimental value was 105.2 amu and the known value was 107.5 amu?
The formula for percent error is |experimental value-accepted value|/accepted value. The lines stand for absolute value. They are there to prevent a negative percent error, seeing as that is not possible, and they have the same effect on the order of operations as a pair of parenthesis. ITS 2.1%
How do you calculate percent inhibition?
Percent inhibition can be calculated using the formula: % Inhibition = [(Control value - Sample value) / Control value] x 100. First, subtract the sample value from the control value, then divide that result by the control value, and finally multiply by 100 to express it as a percentage.
Formula to calculate weight for circle plate?
The formula to calculate the weight of a circle plate is weight = density x volume, where density is the material density and volume is calculated as π x (radius^2) x thickness.
What is the molecular weight of Na2CO3?
The molecular weight of Na2CO3 is: (2 X 23) + 12 + (3 X 16) = 106
What is the formula for relative error?
The formula for relative error is:Erel= |x-x*| / |x|, where x is the proper value, and x* an approximate value.
What is the percent error for a measured value of 3.24 and a correct value of 3.02?
Percent error is calculated using the formula: ((measured value - correct value) / correct value) x 100. Plugging in the values, we get ((3.24 - 3.02) / 3.02) x 100 = (0.22 / 3.02) x 100 ≈ 7.28%.
Formula for z-test?
The z score is calculated from the distance of a value from the distribution center divided by the standard dev. (x-xbar)/st. dev
Formula of a triangle?
The value of x is
What is the formula to find x value?
The formula to find the value of X would be Y-2X. This would equal to y-9 times 2 X.
What is the formula for x-bar in statistics?
(x value) - average
What is the formula for horizon value?
The formula for horizon value is often calculated as the perpetuity value of a business at the end of a forecast period. It is typically calculated using the Gordon Growth Model, which is V = (FCF x (1 + g)) / (r - g), where V is the horizon value, FCF is the free cash flow at the end of the forecast period, g is the perpetual growth rate, and r is the discount rate.
What is the formula for the area of an isosceles triangle?
The are of any triangle is calculated by the formula: Area = 1/2 x Base x Height
How many moles of washing soda are there in 5g?
Washing soda is sodium carbonate, Na2CO3. Using the atomic weights from the periodic table and the subscripts in the formula, the molar mass of Na2CO3 = 106g/mol. 5g Na2CO3 x (1mol Na2CO3/106g/mol) = 0.05mol Na2CO3
How do you determine the cube of an item?
To determine the cube of an item, you multiply the item's value by itself twice. In mathematical terms, if the item has a value ( x ), then its cube is calculated as ( x^3 = x \times x \times x ). This process applies to both numbers and objects in three-dimensional space, where the cube of a shape refers to its volume, calculated using the formula for the volume of a cube, ( V = a^3 ), where ( a ) is the length of one side.
What is the KB of Na2CO3?
The molar mass of Na2CO3 (sodium carbonate) is approximately 105.99 g/mol. To calculate the KB, you would first look up the pKa values for the conjugate acid (HCO3-) and then use the relation KB = Kw / Ka.
