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What is the mass ratio of lead per gram of oxygen in the two compounds?
Solve for the masses of oxygen given 1 gram of Pb:For PbO:(1 g Pb)(1 mol Pb/207.2 g Pb)(1 PbO/1 Pb)(1 O/1 PbO)(16 g O/1 mol O) = 0.07722 g OFor PbO2:(1 g Pb)(1 mol Pb/207.2 g Pb)(1 PbO2/1 Pb)(2 O/1 PbO2)(16 g O/1 mol O) = 0.1544 g OFor Pb2O3:(1 g Pb)(1 mol Pb/207.2 g Pb)(1 Pb2O3/2 Pb)(3 O/1 Pb2O3)(16 g O/1 mol O) = 0.1158 g OGet the ratio by dividing the smallest mass of oxygen to the rest of the calculated masses then multiply it by a certain factor to make it a whole number:0.07722 / 0.07722 = 1 x 2 = 20.1544 / 0.07722 = 2 x 2 = 40.1158 / 0.07722 = 1.5 x 2 = 3ANSWER: 2:4:3
What is the mass percent of sodium chloride in a solution prepared by adding 1 g of sodium chloride to 50 g of water?
The mass percent of sodium chloride can be calculated as follows: Mass of NaCl = 1 g Mass of water = 50 g Total mass of solution = 1 g + 50 g = 51 g Mass percent of NaCl = (Mass of NaCl / Total mass of solution) x 100% = (1 g / 51 g) x 100% ≈ 1.96%
What is the density of a marker?
The density of a marker can vary depending on its materials and size. On average, the density of a typical marker is around 1 gram per cubic centimeter (g/cm³).
How much volume will 180.0 g of gold occupy?
The volume of a substance can be calculated using its density. The density of gold is approximately 19.3 g/cm³. Using the formula: Volume = Mass / Density Volume = 180 g / 19.3 g/cm³ Volume ≈ 9.33 cm³ Therefore, 180.0 g of gold will occupy approximately 9.33 cm³.
What is the empirical formula of a phosphoric acid that contains 0.3086 g of hydrogen 3.161 g of phosphorus and 6.531 g of oxygen?
moles H = 0.3086 H x 1 mol/1 g = 0.3086 moles Hmoles P = 3.161 g x 1 mol/31 g = 0.101 moles Pmoles O = 6.541 g x 1 mol/16 g = 0.41 moles Odivide all by 0.101 to get 3.0 moles H, 1 mole P and 4 moles OEmpirical formula = H3PO4
A capsule contains 0.2 g of medicine A 100 mg of medicine B and 0.025 g of medicine C How many total mg of medication is in the capsule?
1 g = 1,000 mgA . . . 0.2 g = 200 mgB . . . 100 mg = 100 mgC . . . 0.025 g = 25 mgA + B + C = 325 mg
What size g are sharpie caps?
1/2 inch:]
Is There protein in coconut?
The serving size for Coconut is 1/4 shredded. There is 1 g of protein in this serving size.
Calculate the amount of salicylic acid needed in 1 percent ointment that will be 15 g in size?
To prepare a 1% salicylic acid ointment that is 15 g in size, you would need 0.15 g of salicylic acid. This is calculated by multiplying 15 g by 0.01 (1%). Therefore, 0.15 g of salicylic acid would be required for the preparation.
Big g math study?
it holds: 1 gallon 4 quarts 8 pints 16 cups
What word starts with g and means holds fire?
A grate holds fire.
What are the ratings and certificates for Saved by the Bell - 1989 The Time Capsule 4-25?
Saved by the Bell - 1989 The Time Capsule 4-25 is rated/received certificates of: USA:TV-G
What size needle do you use to vaccinate my milking cow beef cow pig and chickens?
Size of the animal and age (which correlates with size) matters here. But I'll do my best. (g = gauge, not grams) Beef cow: 14 g or 16 g needle, possibly 18 g (1" to 1.5") Dairy cow: 16 or 18 g needle (1" to 1.5") Pig: (I think) 14 g 1.5" needle (pigs have thick tough hide like cattle do) Chickens: 25 g 3/4" to 1/2" needle (the smaller the better) You're better off talking to a vet of what size needles are best for each animal.
What is the common serving size of salt packet and what is it equivalent to?
The common serving size is 0,5-1 g NaCl; sodium is 40 %.
What are the ratings and certificates for Phil of the Future - 2004 Time Release Capsule 2-8?
Phil of the Future - 2004 Time Release Capsule 2-8 is rated/received certificates of: USA:TV-G
What labs get centrifuged?
The only lab that is centrifuged is the capsule for training pilots and astronauts to handle high "G" forces.
How many grams does a kilogram holds?
1 kg = 1000 g1 kg = 1000 g1 kg = 1000 g1 kg = 1000 g1 kg = 1000 g1 kg = 1000 g
