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Weight (W)= d/t
distance (d)= W x t
time (t)= W/t
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That is total rubbish. Someone seems to have weight confused with speed!
Formula weights are often used when things are being added together but some of these are more important than others so you give them more weight.
For example, your final score in a subject may depend on some coursework and an exam but the school decides that the exam is twice as important as the coursework. Then if C and E are the percentage marks that you get in the two parts, your overall percentage would be
(1*C + 2*E)/(1 + 2)
The weights associated with the two parts are 1 and 2 - although they could be any numbers in the same ratio. Just remember to divide by the sum of the weights. You can have any number of weights but their sum must be non-zero. The weights can be negative (in mechanics, for example).
What else can I help you with?
How can I calculate portfolio standard deviation in Excel?
To calculate portfolio standard deviation in Excel, you can use the formula SQRT(SUMPRODUCT(COVARIANCEMATRIX, TRANSPOSE(WEIGHTS), WEIGHTS)), where COVARIANCEMATRIX is the range of covariance values, and WEIGHTS is the range of weights assigned to each asset in the portfolio. This formula takes into account the covariance between assets and their respective weights to determine the overall risk of the portfolio.
The formula weight of a compound is determined by adding up the individual weights of every what in that compound?
the formula weight of a compound is determined by adding up the individual weights of every atom in the compound. For example the formula weight of Magnesium Bromide (MgBr2)= 24 + 2(80) = 184
How can I calculate the portfolio standard deviation in Excel?
To calculate the portfolio standard deviation in Excel, you can use the formula SQRT(SUMPRODUCT(COVARIANCE MATRIX, WEIGHTS MATRIX, TRANSPOSE(WEIGHTS MATRIX))). This formula multiplies the covariance matrix of the assets, the weights of each asset in the portfolio, and the transpose of the weights matrix, then takes the square root of the sum of these products.
What do you need to do to predict the mass of a mole of any substance if the formula is known?
The molar mass is the sum of atomic weights of the conained elements in the formula.
The formula weight of a compound is determined by adding up the individual weights of every in that compound.?
atom lulz
What is the formula for Eq for salts using only one chloride?
By adding the molecular weights and dividing by 1 you have the formula for Eq for salts that use only 1 chloride.
What is definition of formality in terms of chemistry?
A concentration scale that gives the number of formula weights of solute per liter of solution
Determine the formula weight of nitric acid?
The formula weight of nitric acid (HNO3) can be calculated by adding up the atomic weights of its constituent elements: hydrogen (H), nitrogen (N), and oxygen (O). The atomic weights are approximately 1, 14, and 16 respectively, so the formula weight of nitric acid is 1 + 14 + (3 * 16) = 63 grams per mole.
What is the mass of NaCl formed?
The mass of the formula unit (NaCl) is formed from the sum of atomic weights of sodium and chlorine: 58,44 g.
What is an Experimental mass ratio?
Experimental mass ratio refers to the ratio of the mass of a compound's empirical formula to the mass of its molecular formula. It is determined in the laboratory through experimental data, such as measurements of molar masses or molecular weights. This ratio can help identify the correct molecular formula of a compound based on its empirical formula.
How many moles of base are needed to neutralize 2 mol of acid for HNO3 plus KOH?
Since both the acid and the base have equivalent weights equal to their formula weights, 2 moles of KOH are needed to neutralize 2 moles of nitric acid.
Are the weights pictured with this item included in the package?
No, the weights are sold separately. The weights in the picture show where the weights are stored.
