If 5.0 g of calcium hydroxide are needed, how many moles of magnesium hydroxide would be produced? Is a mole to mole ratio needed? If YES, what is it?
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If 5.0 g of calcium hydroxide are needed, how many moles of magnesium hydroxide would be produced? Is a mole to mole ratio needed? If YES, what is it?
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- What is the molarity of a solution that contains 50.0 g of vitamin B1 hydrochloride (molar mass = 337 g/mol) in 160 mL of solution?How many milliliters of 0.0050 N KOH are required to neutralize 25 mL of 0.0050 N H2SO4? To neutralize 25 mL of 0.0050 M H2SO4?A 35 mL of solution of hydrochloric acid is neutralized by 15 mL of 0.5 M potassium hydroxide. What is the concentration of hydrochloric acid? The balanced equation is HCI + KOH - H,O + KCI O 0.75 M O 0.25 M O 0.214 M O 0.786 M
- Benzalkonium chloride 17% w/v . . . . . qs Water qs . . . . . . . . . . . . . . . . . . . . . . 120 mL M. ft . solution such that 2 tbsp added to a pint of water will yield a 1:750 solution. How many milliliters of the 17% w/v stock solution will be needed to prepare the 120 mL? a 2.68 mL b 7.90 mL c 15.80 mL d 20.40 mL e 6.28 mLTo make up a solution of phosphate buffered saline (PBS), you need 10 mM Na2HPO4 (anhydrous) (FW: 141.96 g/mol), 3 M NaCl (FW: 58.44 g/mol), and 5mM KH2PO4 (FW: 136.09 g/mol). How many grams of each will you need to make up 850 mL of PBS?An unknown mixture is known to contain only Ba(OH)2 (MW=171.34 g/mole) and NaOH (MW=40.0 g/mole). If the mixture is known to contain 45% by mass NaOH, and 8.0 grams of the mixture is dissolved completely in 50.0 ml of solution, answer the following. c).If 10.0 ml of a 0.2 M solution of Na2SO4 was added to the 50.0 ml solution, what would be the final concentration of Na+ in solution.
- How many grams of NaOH are needed to make 50 mL of a 0.02 g/mL NaOH solution? How many grams of HCl are needed to make 10 uL of a 0.005g/mL acid solution? How many grams of CuSO4 would you use to make 1 L of an 8 g/L CuSO4 solution? 12 grams of glucose will make how many mL of a 0.5 g/mL solution? If you mix 9 g of NaOH with 90 mL of water, what is the mass/volume (g/mL) concentration of the solution?Determine the fluoride ion concentration for a saturated solution of magnesium fluoride. K sp = 7.4 x 10-11A solution contains 2.2 x 10 -3 M in Cu2+ and 0.33 M in LiCN. If the Kf for Cu(CN)42- is 1.0 x 1025 , how much copper ion remains at equilibrium?
- How many moles of ions are in 1.75 mol of K2SO4?What mass of nitrogen monoxide would be produced by complete reaction of 17.0 g of ammonia?The density of trifluoroacetic acid vapor was determined at 118.1 °C and 468.5 torr, and found to be 2.784 g/L. Calculate K, for the association of the acid. 0-H...O 2CF,CO,H(g) = CF;C CF,C(g) O----H-O