molarity = (W /MW) (1000 / V in mL)
molarity = 1.40 M
W = ?
MW = 80.04 g/mol
V = 125 mL
1.40 = (W / 80.04) (1000 / 125)
W / 80.04 = 0.175
W = 14.0 g
mass of NH4NO3 required = 14.0 g
How many grams of N are in 90.0g of NH4NO3?
10 Question (1point) 1st attempt How many grams of N are in 74.0 g of NH4NO3? < 10/12 TIONS COMPLETED
See Periodic Table See Hint How many grams of N are in 27.0 g of NH4NO3?
13. Calculating the composition of a buffer of a given pH. a) Kb=5.4*10-4 125mL of 0.90M (CH3)2NH Calculate the mass of (CH3)2NH2Br should the student dissolve in the (CH3)2NH solution to turn into a buffer with pH=10.70. MW-125.9956g/mol b) Ka=4.5*10-4 125mL of 1.40M HNO2 solution Calculate the mass of KNO2 should the student dissolve in the HNO2 solution to turn into a buffer with pH=3.30
how many grams of NH4NO3 are needed to produce 18.0 L?
You may want to reference (Pages 347 - 348) Section 11.8 while completing this problem. When heated to 350 °C at 0.950 atm, ammonium nitrate decomposes to produce nitrogen, water, and oxygen gases via the following reaction: 2NH4NO3 (s)+2N2(g) + 4H2O(g) + O2(g)
how many grams of 19.4% sugar solution contain 89.5 g of
sugar?
How many grams of a 19.4% sugar solution contain 89.5 g of sugar? g solution:
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1. If there are 15 g in 35 mL of a solution, how many grams are there in 100 mL of this solution? 2. If there are 3 g in 75 mL of solution, how many grams are there in 200 mL of the same solution? 3. If there are 5 g in 200 mL of solution, how many milliliters of the same solution can be made form 30 grams? 4. If there are 8 grams in 160 mL of...
How many grams of KCl remain in solution at 20 ∘C ? How many grams of solid KCl came out of solution after cooling? A solution containing 84.9 g KCl in 210 g H2O at 50 ∘C is cooled to 20 ∘C . Use the solubility data from the table below. Solubility (g/100gH2O) Substance 20∘C 50∘C KCl 34.0 42.6 NaNO3 88.0 114.0 C12H22O11 (sugar) 203.9 260.4
2.) How many grams of lithium bromide are dissolved in 125.0 grams of solution that is 5.00% sodium iodide by mass? 3.) How many milliliters of a 20.0% antibiotic solution must be administered to a patient who needs 1.75 grams of antibiotics? Assume the density of the solution is 1.18 g/mL.