09/06/18
Determine the rate law, including the values of the orders and rate law constant, for the following reaction using the experimental data provided. A + B yield
Determine the rate law, including the values of the orders and rate law constant, for the following reaction using the experimental data provided. A + B yields products Trial [A] [B] Rate1 0.15 M...
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09/06/18
How do I add in parentheses to make 4x3+7-6x1+4=20
Looking to learn how to add parentheses to math sentences to make an answer correct.
09/06/18
Diane, Rafael, and Joe sent a total of 60 text messages over the weekend. Joe sent 2 times as many messages as Rafael. Diane sent 8 fewer messages than Rafael.
How many messages did they each send?
09/06/18
How much orange juice do you need?
Orange juice and grape juice are mixed in a ratio of 3:5. How much orange juice do you need if you want 24dl of the juice mix?
09/06/18
A certain car goes 32 miles on a gallon of gas. How many km can it travel on a gallon of gas?
Please help.
09/05/18
How much water should be added to 120 cubic centimeters of the medicine if the final mixture is to contain only 20% alcohol
A medicine contains 25% alcohol
09/05/18
A store sold $115.50 worth of coffee mugs. One coffee mug was $3.50, how many mugs did they sell?
I'm really bad at math please help
09/05/18
Saffron costs $368 per ounce. Determine how many grams you can purchase for $15.00.
Use Dimensional Analysis
09/05/18
CHemistry lab
A beam of light is reduced to one-fourth of its initial intensity on passing through a 10 cm thick cell containing a 0.05 M (molar = moles per liter) solution. Calculate the extinction coefficient...
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09/05/18
Chemistry lab
A 0.001 M solution absorbs 10% of light passed through a cell 1 cm thick. What concentration must be used to absorb 90% of the same radiation? Answer:
09/04/18
Convert 100mm to inch
I am doing "converting units" topic in my chemistry class and not sure how to simplify it, If you can help me I will be so grateful
09/04/18
Ralph counted 40 white and yellow cars. There were 9 times as many white cars than yellow cars. How many white cars did ralph count?
This is hard for me
09/03/18
If you had a total of 284 test points and an average of 71, how many tests did you take?
I have no more questions
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09/03/18
The cost of a calculator is $2.50 less than five times the cost of a notebook. If Jordan purchases one calculator and one notebook, the total cost is $20.
I need help like now aha because I need to find the cost of the calculator. c = cost of the calculator and n = cost of the notebook. i have one equation to find c which is 5n - 2.50 = c but i need...
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09/03/18
A pharmacist wishes to mix a solution that is 2% Minoxidil. She has on hand 70ml of 1% solution and wishes to add some 4% solution to obtain the desired 2% solu
(cont.) 2% solution. How much $% solution should she add?
09/03/18
A sprinter set a high school record in track and field, running 200.0 m in 22.0 s . What is the average speed of the sprinter in kilometers per hour?
A sprinter set a high school record in track and field, running 200.0 m in 22.0 s . What is the average speed of the sprinter in kilometers per hour?
09/03/18
A student prepares benzoic acid by hydrolyzing 6.47 g of methyl benzoate (FW 136.15 g/mol) using excess sodium hydroxide. If the student recovers 3.71 g of benz
Ig the student recovers 3.71 g of benzoic acid (FW 122.12 g/mol), what was the percent yield of the reaction?
09/03/18
Calculate the theoretical yield (in grams of acetic acid, FW 60.05 g/mol) if 8.79 mL of acetic anhydride (FW 102.09 g/mol, density 1.08 g/mL) is used.
When acetic anhydride is dissolved in water, it forms acetic acid according to the balanced chemical reaction shown below. Calculate the theoretical yield (in grams of acetic acid, FW 60.05 g/mol)...
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08/31/18
Pat can type 65 words per minute. At that rate, how many words should he be able to type in 23 minutes
I need help with how to solve
08/28/18
When 250 ml of .5 M KOH(aq) and 250 ml of .5 M HCL (aq) are mixed in a insulated styrofoam container.
continued question
the temperature rises from 24.6 to 28 degree c. .determine the enthalpy of reaction
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08/28/18
How many molecules (not moles) of NH3 are produced from 1.86×10^−4 g of H2?
I have no idea what I'm doing wrong. "Variables are case sensitive. Check to make sure you are using the correct case." I know that the mol is 6.15X10^-5 mol NH3. Where am I going wrong?
08/28/18
How can I get 29 using 3, 7, 12, 2 using each number only once and In that order.
Can only use each sign multiplication, division, addition, substraction, exponents 2 or 3, and parenthesis once
08/28/18
The density an object is 3.84gr/ml,you have 332gr of it what is the volume of this sample
I need to know the volume of the object
08/28/18
Translate this sentence into an equation 56 is the sum of 10 and Han's age use the variable h to represent Han's age
I'm doing a placement test and cannot figure out what this even means
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