what is the concentration of 5.46 m CH3CN in ppm?
CH3CN in ppm = (Mass of the subtance/mass of solvent)x 106
= (5.46x41/1000)x 106 = 223860 ppm
The density of a 1.96 M solution of LiBr in acetonitrile (CH3CN) in 0.826 g/mL. Calculate the concentration of this solution in (a) molality, (b) mole fraction of LiBr, and (c) mass percent of CH3CN.
The data below were collected for the following reaction at 500 ∘C: CH3CN(g)→CH3NC(g) Time (h) [CH3CN] (M) 0.0 1.000 5.0 0.794 10.0 0.631 15.0 0.501 20.0 0.398 25.0 0.316 Determine the order of the reaction at this temperature. What is the half-life for this reaction (at the initial concentration)? How long will it take for 80% of the CH3CN to convert to CH3NC?
What concentration of nitrate ions (in ppm) is present in 7.1 × 10 –7 M calcium nitrate solution? For very dilute aqueous solutions, you can assume the solution's density is 1.0 g/ mL.
The action level for lead (Pb) in water is 0.015 ppm. What is the concentration in molarity (M, mol/L)? Respond with the correct number of significant figures in scientific notation.
The decomposition reaction of actonitrile into methylisonitrile CH3CN → CH3NC is first order in acetonitrile. If the half-life of the reaction is 1.25 s, what is the concentration of acetonitrile after 3.4 s if the initial concentration was 17.6 M?
The isomerization reaction, CH3NC → CH3CN, is first order and the rate constant is equal to 0.46 s-1 at 600 K. What is the concentration of CH3NC after 0.20 minutes if the initial concentration is 0.50 M? 2.0 ×10-1 M 4.6 × 10-3 M 4.6 × 10-1 M 2.0 × 10-3 M
0.0575g of KBr is in 500 ml of solution. what is the ppm concentration of K
Your standard solution says it contains 903 ppm of potassium nitrate. What is the concentration in ppm nitrate?
What is the molar concentration of Ba?+ present in 424 ppm of BaCl, :2H,0 (244.3 g/mol) A. 1.73x10-'M B. 0.424 M C. 1.73 M D. More data is required to solve the problem
What is the concentration in ppm of Cu2+ in a 3 x 10-4 in the aqueous CuSO4 solution?