A drop of water has a volume of approximately 0.8 ml. How many water molecules does...
A drop of water has a volume of approximately 7x10-2 mL Exercise 3.110 A drop of water has a volume of approximately 7x10-2 mL Part A How many water molecules does it contain? The density of water is 1.0 g/cm Express your answer using one significant figure. AEDO ? molecules Submit Request Answer Provide Feedback
How many molecules of water are in one drop if there are 3.50×1022 molecules in 1.00 g (given that 1 mL = 22 drops)? Assume that 1 mL = 22 drops is an exact equivalent and does not affect the number of significant digits in the answer. (Assume density of water is 1.00 g/mL.)
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and explain, as I need to understand for an exam. Thx!
16. A drop of water has a volume of 50 uL. How many water molecules does it contain? The density of water is 1.0 g/mL. A. 1.67 x 1021 molecules. B. 1.67 x 1018 molecules. C. 1.67 x 1020 molecules. D. 1.67 x 1023 molecules. E. none of the above. ANSWER: A
14. A sample of oxygen gas has a volume of 4.50 L at 27°C and 800.0 torr. How many oxygen molecules does it contain? A) 1.16 x 1023 B) 5.8 x 1022 C) 2.32 x 1024 D) 1.16 x 1022 E none of these
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How many molecules of water are you drinking if you were to consume 450mL bottle of H20? 1. What is the volume of water expressed in L and mL? 2. Calculate the mass of water in g (Hint: we did this in week 1) a. Express mass in mg and kg 3. Find/Calculate the molecular weight of water (H20) 4. Calculate how many moles of water are in the bottle (450mL) 5. Calculate how many molecules of water you...
Given that the volume of one drop is approximately 0.05 mL, compare the number of moles for each ligand when one drop of 2.5 M KSCN is added to a test tube and 1.0 mL of 0.125 M EDTA added. Enter the number of moles of each ligand. Support your answers with appropriate calculations. Moles SCN− : Moles EDTA:
How many moles of water ,H2O,contain, 2.0x10(22) molecules of water ?
A raindrop is measured to have a volume of 0.033 mL. If the density of water is 1.00 g/mL and water's molar mass is 18.0 g/mol, how many molecules of water are in a raindrop? 1x1021 molecules 1.1x1021 molecules 01.104x 1021 molecules 01.10x1021 molecules
How many moles of water, H2O, contain 2.0×10^22 molecules of water?
How many H2O molecules are contained in 1.50 L of water? Assume the density of water is 1.00 g/mL. How many H atoms are contained in 1.50 L of water? Assume the density of water is 1.00 g/mL. please show work, thanks