Complete the following:
a. 4.61x104m= _______________cm
b. 7.56x10-7g=_______________mg
c. 9.3 L= ___________________pl
d. 31.56 mg=________________kg
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Complete the following: a. 4.61x104m= _______________cm b. 7.56x10-7g=_______________mg c. 9.3 L= ___________________pl d. 31.56 mg=________________kg
a b c Find the determinant below, where d e f 5 g h i 7g 7h 7i d e f (Simplify your answer.) 7g 7h 7i
If 6.2 moles of Mg(s) are added to 9.3 moles of H2O(l) how many moles of H2(g) can be made? Mg(s) + 2 H2O(l) → Mg(OH)2 (aq) + H2(g)
(10)1. Find the concentration in (a) mg/L, (b) ppm, (c) ppb, and (d) moles/L (M), respectively, for thefollowing solution: 2 g of NaCl dissolved in 500 mL of water
. A water sample has the following constituents Ca, mg/L 12 Mg-2, mg/L39 Na mg/L 12.8 K-, mg/L 3.4 Fe-, mg/L6.2 Mn-, mg/L 0.3 HCO mg/L 422 SO mg/L 101 CI mg/L 32 co,2mg/L 1.2 Temperature 25 C a. Calculate pH of that water b. Calculate the alkalinity (exactly, including effects of protons and hydroxyl ions); express alkalinity as mg/L CaCO e. Draw a bar chart for the water, Express all concentrations as mg/L CaCO, (The easiest way to do...
(35 points) For the following water sample please complete the table (meq/L and mg/L as CaCO3) and the questions that follow (Remember - 50 mg CaCO3/meq CaCO3) lon mg/L mg/meq meq/L (Please fill in the values below) as CaCO3 mg/L HCO3 125 61.0 2- 35 250 30.0 Mg K* Fe2 Mn2+ SO.2 NO3 NO2 Ca2 12.2 100 39.1 27.9 175 12 27.5 300 48.0 62.0 2 0.1 46.0 155 125 20.0 CI Na* 35.5 25 23.0 pH 7.0 (15 points)...
16- Which sets of quantum numbers are incorrect? a-n= 5,l= 3,ml=0 b-n= 4,l= 5,ml= -1 c-n= 2,l= 1,ml=1 d-n= 4,l= 3,ml=1/2 17-What are the names of the orbitals described by the following sets of quantum numbers? a-n= 4,l= 1 b-n= 2,l= 0 c-n= 6,l= 3 18- Give the values of the quantum numbers n and l for the following orbitals. a-3d b-4p c-7g
4. Which of the following represent the Lewis structure for Mg? A) Mg B) Mg C) Mg: Mg: D) Mg: E)
complete the below reactions
L mg BV nabul come
complete the fallowing reactions
+ H2O A+B så j c. You + socie d. 1o ENH2 BOSS D Palio e i of goc-cts Naat, E, F H2O + NH36H oos in infor+ Nz - I j LEN + L mg Br il vor J 1vov 2) H20
The mean and standard deviation of Carbon concentration is 5 mg/L and 2 mg/L based on 25 samples from a river. The mean and standard deviation of Nitrogen concentration is 7 mg/L and 3 mg/L based on 35 samples from the same river. The experimenter wants to answer the question if the Nitrogen concentration is higher than the Carbon concentration. Which of the following methods do you use? (a) Z-test, Default Procedure (b) Z-test, Pooled Variance Procedure (c) T-test, Pooled...