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a 25.00 ml aliquot of 0.16m nacl was titrated with 27.52 ml of 0.18 m agno3.determine whether the precipitate will form at the end point ksp agcl=1.6*10^-10
A 400 mL buffer solution was prepared by reacting sodium acetate, CH3COONa,
with 1.00 M acetic acid, CH3COOH, with a pH of 4.56 Calculate the mass of
CH3COONa required to prepare the solution. Ka CH3COOH= 1.75 x 10-5
The operations manager of a sugar mill in Durban wants to estimate the average size of an order by constructing a 90% confidence interval. An order is measured in the number of pallets shipped. A random sample of 87 orders from customers had an average of 131.6 pallets. Based on information from past records, the operations manager assumes that the number of pallets shipped is normally distributed with a standard deviation of 25 pallets.
What is the confidence interval constructed by the operations manager?
(Round off to the nearest whole numbers.)
The radius of a quarter circle is 1 millimeter. What is the quarter circle's perimeter?
Use 3.14 for 𝜋.
The radius of a quarter circle is 1 millimeter. What is the quarter circle's perimeter?
Use 3.14 for 𝜋.
Consider the reaction Cd (s) + 2AgNO3 (aq) → 2Ag (s) + Cd(NO3
)2 (aq)
a. Rewrite the equation to show the dissociated ions. This is called the dissociation equation. Include
states. (1)
b. Identify the spectator ion. (1)
c. Write the balanced net ionic equation. Include states. (1)
d. Which entity is oxidized? (1)
e. Which entity is reduced? (1)
f. Which entity is the oxidizing agent? (1)
g. Which entity is the reducing agent? (1)
h. Write the balanced oxidation half-reaction. (1)
i. Write the balanced reduction half-reaction. (1)
The outer if-else statement checks the type of day, and the nested if-else statements check the hour of travel.
True
False
if two equal charges , each of 1c,were separated in air by a distance of 1km,what would be the force between them?
Find the 90th. Percentile of the t-distribution if the sample size is 25?
Two charges (−12.6 × 10−12 𝐶𝐶 and − 1.13 × 10−13 𝐶𝐶) are separated by a distance of
3.75 𝜇𝜇𝑚𝑚. Compute the force of attraction between them.
