
can you show ur work 4. How many molecules are present in one mole of glucose,...
How many moles of glucose are present in 50.0 grams of solution that is 2.50% by mass glucose (C6H1206)? Molar mass of C6H1206 = 180.16 g/mol a. 11.1 moles 6.225 moles 6.6.94 x 10-3 moles d. 1.25 moles e. 0.800 moles
3. Consider 1.00 mole of hydrogen gas, H2. How many dihydrogen molecules are present? How many hydrogen atoms are present? What is the mass of this sample? 4. Ethanol has a molecular formula of CH3CH2OH. a. What is the average mass of one molecule of ethanol? b. What is the mass of 1.000 moles of ethanol? c. What is the mass of 0.5623 moles of ethanol, CH3CH2OH? d. How many moles of are present in a 100.0 g sample of...
1) Calculate the number of molecules in the following: a) 0.25 mol of glucose (C6H1206) b) 1.4 g of HCI c) 0.35 g of NH3 2) What is the mass of the following: a) 5.00x10" molecules of HI b) 0.0250 mol of Al(SO4)3 c) 1.00x10% atoms of Na 3) How many are there: a) moles in 2.50g of K PO. b) grams in 0.034 mole of HCI c) moles in 1.25g of NazS 4) Calculate a) How many g of...
(a) You have 2.30 moles of argon. How many argon atoms are present? (b) How many moles of neon are needed to have 4.32x10^24 neon atoms? (c) You have 37.0 grams of CO2. How many moles is that? (d) You have 2.53 moles of CCl4. How many grams is that? (e) How many H2O molecules are present in a sample of water with a mass of 3.64 grams?
A person drinks 1.50×10^3 g of water, H20, per day. How many moles is this?
How many molecules are there in 2.30 grams of NH3? How many moles of H? Show work.
For each of the following HCl solutions, the moles or grams of solute present and the total solution volume are given. Calculate the molarity of each solution. a.-1.40 moles HCl, 1.45 L solution b. 0.850 mole HCl, 0.867 L solution c. 30.0 g HCI, 1.45 L solution d. 30.0 g HCI, 875 mL solution 8-53 For each of the following KOH solutions, the moles or 8-54 re b. S.00gvae c. 25.0 g NaCI, 137.0 g H2O d. 729 mg NaCl,...
How many grams of water, H2O, are present if there are 9.05*1024 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
1.) How many grams of carbon are in 20.0 grams of CH4? a. 18.46g b. 8.00g c.14.98g d. 4.00g 2. How many particles are present in 2 moles of water molecules? a.18.015 g per mole b.1.204 x 1024 particles c.36.03 g per mole d.36.03amu