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Question 2 (1 point) What is the mass, in grams, of 4.5 x 1024 formula units...
What is the mass in grams of 2.40 x1022 formula units of magnesium chloride? The molar mass of magnesium chloride is 95.211 grams/mole.
25 What is the mass in grams of 6.0 x 1024 formula units of lithium acetate? (A) 657. 81 g (B) 0. 15101 g (C) 5. 4727 x 1046 g (D) 6. 622 g
15 What is the mass in grams of 6.0 x 1024 formula units of aluminium sulfate? AlZ (A) 2.9143 x 10-2 g (B) 1. 0561 x 1046 g (C) 3408. 6 g (D) 34. 314 g o.0 x 101 3425 G.022210 In .lac
1) Calculate the number of moles of Cl atoms in 3.01×1024 formula units of magnesium chloride, MgCl2. Express your answer numerically in moles. 2) In the gaseous state, chlorine exists as a diatomic molecule Cl2 (Molar mass = 70.9 g/mol). Calculate the number of moles of chlorine present in 100 g of chlorine gas. Express the quantity in moles to three significant figures. 3) Sodium hydroxide, NaOH, is a strong base that is used in industrial synthesis and processes such as...
17 How many formula units are in 10.0 grams of calcium fluoride? (A) 4.6956 x 1024 formula units (B) 2. 1297 x 10-25 formula units (C) 7. 7179 x 1022 formula units (D) 1.2957 x 1025 formula units
1) Calculate the number of moles of Cl atoms in 3.01×1024 formula units of magnesium chloride, MgCl2. Express your answer numerically in moles. 2) In the gaseous state, chlorine exists as a diatomic molecule Cl2 (Molar mass = 70.9 g/mol). Calculate the number of moles of chlorine present in 100 g of chlorine gas. Express the quantity in moles to three significant figures. 3) Sodium hydroxide, NaOH, is a strong base that is used in industrial synthesis and processes such...
What is the mass, in grams, of 9.10 x 1024 molecules of methanol (CH3OH) ? mass: What is the mass of exactly 1 mole of each of the elements? arsenic: boron: germanium: Tia has a sample of pure gold (Au). She weighed the sample and the result was 45.2 grams. Tia wants to determine the number of atoms in the sample. Calculate the number of atoms in 45.2 g of pure gold.
correct sig fig number please! Question 49 (1 point) A student runs the reaction below starting with 53 grams of ammonia (NH3). How many grams of water should form? 4 NH3 + 5 O2 - 4 NO + 6 H20 NH3 molar mass = 17.04 g/mol H20 molar mass = 18.02 g/mol Report your answer with the correct number of significant figures. Your Answer: I Answer units Question 50 (1 point) When 6.23 grams of an unknown metal is heated...
1. determine the molar mass of aluminum perchlorate in units of grams per mole. 2. what is the mass (in grams) of 3.25 moles of elemental nitrogen? 3. how many molecules are found in 18.0 g of carbon dioxide? 4. A 170.00 g sample of an unknown compound want to UC Davis for elemental analysis. The results stated the unknown common consist of 29.84% sodium, 67.49% chromium, and 72.67% oxygen. Find the Paracle formula of this identified compound.
Lab 3: Determination of Molar Mass by Freezing Point Depression 1 During winter, several different "salts" are used to melt ice sodium chloride (NaCI), a mix of sodium chloride and magnesium chloride (NaCl and MgCla calcium magnesium acetate (CaMg(CHO)). Assume you have 1 mole of each of these in 1 kg of water. Compare the freezing point depressions of these three "salts." a. b. What is the ratio of moles of "salt" to freezing point depression for each? What is...