In an acidic solution, manganese(II) ion is oxidized to permanganate ion by bismuthate ion, BiO3-. In the reaction, BiO3- is reduced to Bi3+. How many milligrams of NaBiO3 are needed to oxidize the manganese in 30.2 mg of manganese(II) sulfate?
When 6 liter of nitrogen gas reacts with 18 liters of hydrogen gas at constant temperature and pressure, how many liters of ammonia gas will be produced?
A hard water sample contains 0.0081 %Ca by mass (in the form of Ca2+ ions)What mass of water in grams contains 1.3g of Ca? (1.3g of Ca is the recommended daily allowance of calcium for 19- to 24-year-olds.) Need help set this up?
Choose the correct sentence pattern for the sentence below. I hereby declare Tuesday Shakespeare Day.
Gabriel walked 100m around the perimeter playground.How long and how wide could the play ground be? give three different answers.
A solid aluminum cylinder, ρ = 2700 kg/m3 , “weigh” 67 g in air and 45 g when immersed in turpentine. Determine the density of turpentine.
A 4.0−L sample of a 6.3M NaCl solution is diluted to 50L . What is the molarity of the diluted solution? How would I set this up?
The solubility of air in water is approximately 2.1x10^-3 M at 20 C and 1 atm. What is the constant for air.?
Over a period of time, the concentration of sulfuric acid in a lead storage battery of an automobile has decreased from 38 percent by mass(density=1.29 g/mL) to 26 percent by mass(1.19 g/mL). Assume the volume of the acid remains constant at 715 mL.
Write a program called ‘vectormath.py’ to do basic vector calculations in 3 dimensions: addition, dot product and normalization.
What is the least perimeter of a rectangle with an area of 32 square feet?
For the reaction: N2+3H2 2NH3 1.000 mol N2 and 1.000 mol H2 are placed in a 1.000 L container and allowed to establish equilibrium. When equilibrium is established the [N2] =0.921M. Calculate the equilibrium concentrations of hydrogen and ammonia.
A 44.8−mL sample of a 7.0M KNO3 solution is diluted to 1.10L What volume of the diluted solution contains 16.0g of KNO3? Would I do the same thing for this one or would does it have an extra step it it.
What is anomie and its connection to norms?
Traditional African marriage is an advantage for men only,not women.
Chad has a rope that is 9 yards long. How many pieces of rope measuring of a yard can he divide his rope into?
Suppose a random family of four is selected (two parents and two children). Suppose further that you are told one of the two children is a girl. Given that this family has at least one daughter, what is the conditional probability that it also has a son?
8.a) Consider the data below for Alaska Airlines and for American West Airlines. Construct a bar graph which breaks down the data by airline and by city, and which shows, for each airline, the percentage of on-time flights at each city.
For the reaction: A+B 2C (all gases) 2.0 mol A, 2.8 mol B and 1.0 mol C are placed in a 2.0 L container and allowed to reach equilibrium. When equilibrium is established [C]=0.75 M. Calculate all equilibrium concentrations. Calculate K. I am so confused!
A Cone-shaped piece of paper has a height of 15 centimeters and a radius of 1.2 centimeters. The cone is 2/3 filled with sand. What is the approximate volume of the portion of the cone not filled with sand?
there are 500 passenger with a mean age of 60 years and a standard deviation of 12. what is the minimum age of the oldest 20%?
Older people are given more respect in all societies when they are (Points : 1) no longer working. married. economically productive. living on their own.
Standard soft drink cans hold 12 ounce or 355 milliliters of soda. Assume that soda can must be right circular cylinders. Through trial and error with cans of different sizes, find the dimensions of a 12-ounce can that has the lowest cost for materials.
pls...help, QUESTION = At what depth below the free surface of oil having a density of 600kg/m^3 will the pressure be equal to 1bar.
Jennifer rode her bike to the store at a rate of 15 mph. She rode back home at a rate of 10 mph. How far is it to the store if the round trip takes an hour?
What is the message/theme in "Eulogy" by Brian Turner?
Calculate the heat required, in joules, to raise the temperature of a 0.20 kg block of aluminium from 20°C to 60°C.
I did problem but would like someone to see if I did it correctly. triangle ABC similar to ADE by AA theorem need x and y. start at B and go rt. around the 2 connected triangles BA=12; (AD 8 with rest of line =y so have ADC = 8+y; CD = 9. Line DE = x.
Copper has a specific heat of 0.387 J/g·°C. How much energy is required to raise the temperature of 215 g of copper from 47.0°C to 164.0°C?
How many inches are in 75% of 20 yards?
What is the difference between modern fantasy and regular fantasy. Is modern fantasy merely a subgroup of fantasy? Some examples would help.
How does the freezing process of ice cream occur? What happens to ice when salt is added?
Hello. Please help me with my question. Is there any difference between the verbs 'learn' and 'study' in the sentences: 1) I'm going (want) to learn English. 2) I'm going (want) to study English. Thank you for your help a lot.
what is the perimeter of a rectangle if L=3x+5 meters W=4x-3 meters?
Where do I need a comma? After returning to the United States from Canada Sitting Bull was put in prison for two years. Just after canada?
Transition metals (also called heavy metals) form insoluble compounds with hydroxide ions. Therefore, it is possible to extract heavy metal ions from water by raising the pH. The precipitation reaction between cadmium(II) and hydroxide is shown below.
Let 70.0 J of heat be added to a particular ideal gas. As a result, its volume changes from 65.0 cm3 to 169.0 cm3 while the pressure remains constant at 1.7 atm. By how much did the internal energy of the gas change?
$1200 is invested at 6%p.a. for 42 months how much interest is earned after 2 years?
Why is Potassium and Bromide KBr? Why does Br not follow 2n2? Br = 35 electrons, 2,8,18,7 why does the shell not fill to 32 and is happy with one of Potassium electrons. Thank you kindly.
Estimate the pressure that is exerted on the ground by an average female. In runners? and then In "high heels"?
Why was the admission of Missouri as a slave state controversial in the Senate?
Why does morality have little part to play in your Judging of deviance?
Where does the comma go in these sentences? 1. Usually castles sat on a hilltop, and had high stone walls. 2. Loo at this picture of a castle Cate.