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Chemistry Questions
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answers
How many unpaired electrons does a ground-state atom of sulfur have?
@kinzeyc1 • about 6 hours ago •
Chemistry
0
answers
A gas can holds 5.0 gallons of gas. Express this quantity it cm^3
@ambers102 • about 6 hours ago •
Chemistry
0
answers
Calculate K for the following reaction if a container is initially filled only with 0.351 M NOBr has a [NOBr] = 0.298 M at equilibrium. 2 NOBr(g)⇌2 NO (g)+ Br2 (g)
@rafaeld12 • about 6 hours ago •
Chemistry
0
answers
CH4(g)+CO2(g)⇌2CO(g)+2H2(g) Kp=4.5×102 at 825 K An 85.0-L reaction container initially contains 22.3 kg of CH4 and 55.4 kg of CO2 at 825 K
@maritzah2 • about 7 hours ago •
Chemistry
0
answers
2H2S(g)+SO2(g)⇌3S(s)+2H2O(g) A reaction mixture initially containing 0.490 M H2S and 0.490 M SO2 was found to contain 1.1×10−3 M H2O at a certain temperature. A second reaction mixture at the same
@maritzah2 • about 7 hours ago •
Chemistry
0
answers
A piece of plastic weighing 1.157 g has a volume of 1.48 cm3. A piece of wood has the same volume but weighs 3.85 g. The density of liquid X is 0.765 g/mL and the density of liquid Z is 1.13 g/mL.
@tykirreab1 • about 9 hours ago •
Chemistry
0
answers
What is the concentration of a solution which is 50.0% potassium hydroxide and has a density of 1.52g/mL?
@vm105 • about 13 hours ago •
Chemistry
0
answers
How many moles of S atoms are in 5.83 mol of SO3, a substance used to make sulfuric acid??
@nicoler144 • about 16 hours ago •
Chemistry
0
answers
Silver sulfadiazine burn treating cream creates a barrier against bacterial invasion and release antimicrobial agents directly into the wound .if 25.0 Ag2O is reactant with
@christinak40 • about 19 hours ago •
Chemistry
0
answers
determine the [OH-] and pH of a solution that is .220 M in HCO3-. Kb = 2.33 x 10^-8
@jackiea23 • about 20 hours ago •
Chemistry
0
answers
After complete reaction, how many molecules of ammonia are produced?
@miao22 • 1 day ago •
Chemistry
0
answers
what mass of . sucrose should be combined . with 502 g of water to make osmotic pressure 8.75 @ 295//k
@jamieb50 • 1 day ago •
Chemistry
0
answers
Calculate the concentration of NaOH that results when performing the following dilutions. a. Combining 20.0 mL of 0.300 M NaOH and 0.300 M NaCl
@sofiam40 • 1 day ago •
Chemistry
1
answer
How many moles of chlorine atoms are in 55.5 g of magnesium chloride?
@joef23 • 1 day ago •
Chemistry
1
answer
If Dylan S. Gardner starts with 2.93 grams of barium, Ba, how many moles of barium nitride, Ba3N2 can he theoretically form? Balanced Equation: 3 Ba + N2 ------> Ba3N2
@brooksm7 • 1 day ago •
Chemistry
0
answers
5-ethylhexane
@fatimai7 • 1 day ago •
Chemistry
0
answers
Combustion studies of the use of H2 as an alter. fuel, HO is formed in flames by rxn, H(g) + 1/2 O2(g) <=> HO(g) Calculate the value of Kc H2(g) <=> 2 H(g) Kc = 0.00773 1/2 H2(g) + 1/2 O2(g) <=> OH K
@shazina1 • 2 days ago •
Chemistry
1
answer
You take 5ml of a 1:20 dilution of a stock protein solution into a final volume of 100ml. the final concentration of the protein is .075mgml. What was the initial concentration of the stock solution?
@farahr8 • 2 days ago •
Chemistry
1
answer
calculate mass (in grams) of sodium in 8.5 g of each sodium - containing food additive. a) NaCl b)Na3PO4 c)NaC7H5O2 d)Na2C6H6O7
@shelbyp27 • 2 days ago •
Chemistry
1
answer
The molecular weight of protein is 20,000 g/mol. How many grams are present in 0.5 ml of a 100mM solution of this protein?
@farahr8 • 2 days ago •
Chemistry
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