How many moles are present in a 25.00 mL sample of 0.097 M acetate?
a.) how many moles of iron is 66.8 g of Fe? __________________ mol Fe b.) How many grams of iron is 4.89 x 10-2 mol Fe? __________________ g Fe c.) How many atoms are present in 0.950 mol of uranium? _________________ x10 _________________ U atoms d.) 3.84 × 106 sulfur atoms is how many moles? __________________ x10 _______________ moles
#6: How many moles of sodium chloride are present in 9.29 g? How many moles of sodium are present in the sample? please show work
Part A The density of iron is 7.87 g/mL. What is the mass of a 2.00 cm x 4.00 cm x 1.00 cm block of iron? Express your answer to three significant figures and include the appropriate units. View Available Hint(s) alue Units mass = Submit
How many moles are present in a 25.00 mL sample of 0.077 M acetate? Answer: CHECK CHECK
How many moles of gas are present in a sample with a volume of 20.0 L, a pressure of 10.0 psig and a temperature of 20.0 °C? (1.40) 4. 5 Suppose you flow 25.0 standard liters of gas at a rate of 20 sccm. How long will ho compl lact? (20 50min
How many moles of substance are present in a 10-g sample of each of the following compounds? (Show calculations) NaNO_3 NH_4NO_3 NH_4Cl MgSO_4 CaCl_2
How many moles of LiF are present in a 42.0 g sample? • Your answer should have three significant figures. Provide your answer below: moles
Determine how many moles of HOAc and how many moles of OAc^- are present 50. mL of a 1.0 M acetate buffer, pH 4.0.
how many moles of water, H2O, are present in 25.0 g H2O? How many moles of water, H20, are present in 25.0 g H20? 4.41 moles 0.56 moles O 1.39 moles 7.50 moles 1.35 x 103 moles