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What is 4.2 g as a percentage?
You get a percentage usually by comparing two numbers against each other. One number compared to itself is always 100%
What percentage is 200 g of 5 kg?
It is: 200/5000 times 100/1 = 4%
How do you prepare an aqueous solution as a percentage?
percent by mass = (mass of solute) / (mass of solute + mass of solvent) x 100% Ex: if you need a 12% by mass solution of salt then the easiest way is to get 12 g salt and 88 g of water thus the total is 100 g. 12 / (12+88) x 100% = 12%
Rules of differentiation?
Assume f=f(x), g=g(x)and (f^-1)(x) is the functional inverse of f(x). (f+g)'=f'+g' (f*g)'=f'*g+f*g' product rule (f(g))'=g'*f'(g) compositional rule (f/g)'=(f'*g-f*g')/(g^2) quotient rule (d/dx)(x^r)=r*x^(r-1) power rule and applies for ALL r. where g^2 is g*g not g(g)
How mg are in g?
1 g = 1000 mg1 g = 1000 mg1 g = 1000 mg1 g = 1000 mg1 g = 1000 mg1 g = 1000 mg
What is 750 g as a percentage of 1.5 kg?
750 g is 50% of 1.5 kg. To find the percentage, you can divide 750 g by 1.5 kg (1500 g) and multiply by 100 to get the percentage.
How do you convert mg per g to percentage?
Since 1g 1000 mg, and percentage is g per 100g, you have to multiply by 10.
What is 25 g out of 175 g expressed as a percentage?
percentage = 14.2857% rate:= 25/175 * 100%= 0.142857 * 100%= 14.2857%
What A 70.00-g sample of an unknown compound contains 16.20 g of sulfur what is the percentage by mass of sulfur in the compound?
The percentage by mass of sulfur in the compound is calculated by dividing the mass of sulfur by the total mass of the compound and multiplying by 100. In this case, the percentage by mass of sulfur is (16.20 g / 70.00 g) x 100 = 23.14%.
What percentage is 49 mg per 100 g?
49 mg as a percentage of 100 g = 100*49mg/100 g = 49 mg/1 g 49 mg /1000 mg = 49/1000 = 0.049%
A mixture was found to contain 1.05 g of SiO2 0.69 g of cellulose and 2.17 g of calcium carbonate what is the percentage of SiO2 in this mixture?
To find the percentage of SiO2 in the mixture, we first calculate the total mass of the mixture: 1.05 g (SiO2) + 0.69 g (cellulose) + 2.17 g (calcium carbonate) = 3.91 g. Then, we calculate the percentage of SiO2 in the mixture: (1.05 g / 3.91 g) x 100% = approximately 26.82% of SiO2 in the mixture.
What percentage is salicylic acid if 3.9 g of the acid was isolated from 12.1 g of the mixture?
32.23%
What is dissolving of salt in the water?
This measure is the concentration of NaCl expressed in mol/L, g/L, g/100 g (percentage).
A chemist dissolves 3.50 g of potassium iodate and 6.23 g of potassium hydroxide in 805.05 g of water what is the percentage concentration of each solute in the solution?
The specified amounts of materials add to 814.78 grams total. Therefore, the percentage concentration by mass of potassium iodate is 100(3.05/814.78) or 0.374 percent, to the justified number of significant digits, and the percentage concentration by mass of potassium hydroxide is 100(6.23/814.78) or 0.765 percent, to the justified number of significant digits.
What is the percentage of sugar in a chocolate bar if it weighs 14.630 g and the amount of sugar in it is 9.315 g?
63.67%
What is the percentage of nitrogen by mass in calcium nitrate?
The molar mass of calcium nitrate is 164.1 g/mol. The molar mass of nitrogen is 14.01 g/mol. So, the percentage of nitrogen in calcium nitrate is (14.01 g/mol / 164.1 g/mol) * 100% ≈ 8.54%.
What is the measure of salt dissolved in water?
This measure is the concentration of NaCl expressed in mol/L, g/L, g/100 g (percentage).
