I need the procedure please! What is the mass in 0.350 M 6.022 x 10 0.400...
6:39 < Question 6 of 10 Submit What is the mass in grams of KBr in 0.400 of a 0.350 M solution? STARTING AMOUNT ADD FACTOR ANSWER RESET 6.022 x 1023 0.350 0.400 M KBr 39.10 0.140 g KBr 16.7 mL 119 g KBr/mol 5.47 mol KBT 136 Tap here or pull up for additional resources
What is the mass of 6.022 x 1023 compounds of NH4AI(SO4)2·12H2O?
Answer is C.) 1.38 x 10^-5 but need explanation please Following the same procedure as in Experiment 5, a calibration curve (absorbance vs II1) was prepared and determined to have a slope of 68.81 and a y-intercept of 0.004167. Next, 5.00 mL of 0.0120 M Pb(NOs)2, 3.00 mL of 0.0300 M K), and 2.00 mL of 0.200 M KNowere mixed in a centrifuge tube, producing a yellow precipitate of Pbl Again following the same procedure, the supernatant solution was transferred...
QUESTION 26 What is the mass, in grams, of one arsenic atom (NA- 6.022 x 1023 mol-1? O 5.48 x 10-23g O 33.0 g O 74.9 g O 1.24 x 10-22 g O 804 x 1021 g
What is the pH of a 0.400 M. solution of HF (Ka = 6.8 x 10-4)?
what is the mass (grams) of 6.022 x 1023 potassium atoms? - How many sodium atoms are there in 5.000 moles? How many sodium atoms are there in 100 narams of sodium?
please explain in words and equation. 5. (10 pts) The pH of a 0.350 M solution of uric acid is 2.17. What is the value of Ka?
What is the pH of a solution of 0.400 M CH3NH2 containing 0.180 M CH3NH31? (Kb of CH3NH2 is 4.4 x 10-4)
If a buffer solution is 0.300 M in a weak base (K5 = 2.7 x 10 ) and 0.400 M in its conjugate acid, what is the pH? pH = You need to prepare 100.0 mL of a pH 4.00 buffer solution using 0.100 M benzoic acid (pK-4.20) and 0.200 M sodium benzoate How many milliliters of each solution should be mixed to prepare this buffer? benzoic acid: Amt ml. sodium benzoate: 1 ml
Please show all work thank you! A closed surface with dimensions a b- 0.400 m and c 0.700 m s located as shown in the figure below. The left edge of the closed surface is located at position x a. The electric field throughout the region is nonuniform and given by E- (4.40 3.8ox2) i N/c, where x is in meters. x F a (a) Calculate the net electric flux leaving the closed surface N me/C (b) What net charge...