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Note: Conversion is based on the latest values and formulas.
How much gold is there in a 14k gold pocket watch? - Answers ∙ 15y ago. Updated: 9/13/2023. ... * 14k Open faced cases are between 30% to 45% with 35% being average * Silver Hunter cases average around 70% of the total watch weight
How do you prepare 15 percent potassium carbonate? - Answers 12 Jan 2025 · It's equal to 0.0000000015 percent. Think of this way: 15 parts per thousand is 15/1000 = 0.015 or 1.5 percent. 15 parts per million is 15/1E6 = 0.000015 or 0.0015 percent. 15 …
How much does 93 percent sulfuric acid weigh per gallon? 23 May 2024 · It depends how concentrated it is.If it is 100% pure, then it weighs 1.840 g/mL, and so 1 gallon weighs 6965.15 g, or 6.965 kg (3785.41 mL per gallon). That's equal to 15.35 …
What land covers about 30 percent of earths surface? - Answers 4 May 2024 · Land covers about 30% of the Earth's surface, with the remaining 70% being covered by water bodies such as oceans and seas. Land consists of continents, islands, and …
When did nickels stop being made with silver? - Answers 19 Sep 2023 · During WWII special "war nickels" were made from an alloy of 56% copper, 35% silver, and 9% manganese. The composition was changed because nickel metal was needed …
What is the percent composition of KMnO4? - Answers 6 Feb 2025 · What is the percent composition for 29.0 g of Argon combine completely with 4.30 g of Sulfur? To find the percent composition, first calculate the total mass by adding the masses …
Explain how you prepare 15 percent NaCl? - Answers 1.Weigh 15 g ultrapure NaCl dried at 110 0C for 30 min. 2. Transfer NaCl in a clean 0,1 L volumetric flask. 3. Add 0,09 L demineralized water. 4. Put the flask in a thermostat and …
What is the percentage of freshwater out of the worlds total water ... 12 Jun 2024 · Most of the water on Earth is undrinkable, about 99%, only 1% of the water on Earth is drinkable, and only half of that is easily available!
What percentage of salt is there in the ocean? - Answers 23 May 2024 · The ocean has a lot of salt in it, 3.5% by weight, but that is not just dissolved sodium chloride (Na+, Cl-). The dissolved sodium and chlorine atoms account for about 85% …
What is the molarity of 32 percent HCl? - Answers 24 Jan 2025 · A: 10.172 M HCl. Percents of acids like this one is normally given in % w/w, or percent weight by weight. So we need to find the mass of the solution.