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What else can I help you with?
What is the importance of percentage composition?
Percent composition can be used to calculate the percentage of an element/compound in a mixture. From the percent composition, you can also find the empirical formula. And from the empirical formula you can find the actual molecular weight.
3.50 to 2.80 what is the percent decrease?
Percent change can be found using the formula below:(new amount) - (original amount)% change = __________________________(original amount)Using this formula, we find that2.8 - 3.5 -0.7_______ = ____ = -0.2, which equals a 20% decrease (negative answer)3.5 3.5
How do you find percent markdown?
How do you find percent markdown
How do you Find a whole when the percent is known?
how do you find a number when a percent of it is known
How do you solve percentage math sums?
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How do you write an excel formula to find the gross margin percent if A1 is cost and B1 is retail?
"=((B1-A1)/B1)*100" alternatively if you format the cell as a %, it would just be "=(b1-a1)/b1"
What formula do you use to find PERCENT?
part over whole
What is the formula to find out what 4 percent of 20?
20 x .04 = ?
What is the importance of percentage composition?
Percent composition can be used to calculate the percentage of an element/compound in a mixture. From the percent composition, you can also find the empirical formula. And from the empirical formula you can find the actual molecular weight.
What is formula to find 700 is 11 percent of what amount?
700 x 100/11...
What is the percent composition of ammonium carbonate?
Ammonium carbonate has the formula (NH4)2CO3. To calculate the percent composition, you first find the molar mass of each element and then divide the molar mass of each element in the formula by the formula mass of the compound and multiply by 100 to get the percentage.
How can one determine the chemical formula from percent composition?
To determine the chemical formula from percent composition, you need to convert the percent composition of each element into moles. Then, divide the moles of each element by the smallest number of moles to find the ratio of elements. Finally, use this ratio to write the chemical formula.
How do I Create a formula to determine the percentage of income used for each expense. Be sure to format it as a percentage. Place that formula in the row next to the total of each monthly expense?
To find the percentage of each expense, you would divide the total expenses by the total of each expense category. Right-click on the cell where you want to display the percentage and format the cell to display the value as a percent. You also can select the number of decimal places to display. If your total expenses are displayed in cell N12 and your office expenses are in cell N3, put the following formula in O3: =N3/N12. This will divide the office expenses by the total expenses and give you a decimal. If Total Expenses are $100 and Office Expenses are $20, cell O3 will display .2. When you format the cell to display as a percent, you will see .2 change to 20% (if you format to display 0 decimal places). If you want to display as 20.00%, then format to display 2 decimal places.
An unknown sample with a molecular mass of 180.0g is analyzed to yield 40 percent C 6.7 percent H and 53.3 percent O What is the empirical formula and the molecular formula of this compound?
The empirical formula is CH2O. To find the molecular formula, you need to calculate the empirical formula weight (30 g/mol) and divide the molecular mass (180.0 g/mol) by the empirical formula weight to get 6. This means the molecular formula is (CH2O)6, which simplifies to C6H12O6, the molecular formula of glucose.
What is the formula to find percent of change?
Take the old value and subtract from the new value, then divide by the old value. Multiply by 100. That number representsthe percent change.
What is 1 percent of 40.3?
1 percent of 40.3 would be 40.3 divided by 100, or .403. Note: To find any percent simply follow this formula ((n/100)*p) where n is your number and p is the intended percent.
How do you know when to solve for a empirical formula?
You should solve for an empirical formula when you are given the percent composition of elements in a compound or when you have the molar mass of the compound but not the molecular formula. The empirical formula provides the simplest whole-number ratio of atoms in a compound.
