05/23/17
how many moles of sodium hydroxide will it take to neutralize a carbonic acid solution that contains 40.0 grams of carbonic acid?
Acids and bases
Follows
•
2
Expert Answers
•1
![]()
05/23/17
10.0 L of a gas are collected at stp. What is the volume of the gas at 2.00 atm and 50.0 c?
10.0 of gas is collected at stp. What is the volume of the gas at 2.00 atm and 50.0 c
Follows
•
2
Expert Answers
•1
![]()
05/23/17
Chem question please help
what mass of magnesium bromide would be required to prepare 720.ml of a 0.0939 M aqueous solution?
Follows
•
3
Expert Answers
•2
![]()
![]()
05/23/17
Chem question please help
a 0.400g sample of white powder contains 0.141g of potassium, 0.115g of sulfur and 0.144g of oxygen. What is the empirical formula for this compound?
Follows
•
2
Expert Answers
•1
![]()
05/23/17
Chem question please help
if 10.0g of hydrogen and 75.0g of oxygen are together in a reaction tube, how much water produced? what other gas is found in the reaction tube(besides water vapor) after the reaction, and how...
more
Follows
•
2
Expert Answers
•1
![]()
05/23/17
Chem question please help
write chemical, complete ionic and net ionic equations for the reaction between calcium chloride and sodium carbonate solution.
Follows
•
2
Expert Answers
•1
![]()
05/23/17
Chem question please help
Calculate the total number of moles in the following mixture of elements: 54.0 g aluminum sulfide, 6.022•10^24 atoms gallium and 74.2 ml of nitrogen gas (assume at STP)
Follows
•
2
Expert Answers
•1
![]()
05/23/17
change one or both equations to make one of the variables disappear. x+y=79 3x+4y=284 please show step by step
change one or both equations to make one of the variables disappear x+y=79 3x+4y=284 please show step by step
Follows
•
2
Expert Answers
•1
![]()
05/22/17
Give the units for the rate constants for the following rate law
Give the units for the rate constants for the following rate law:Rate = k[A]/[B].Taking into account that sometimes the other concentration units may be used (e.g. NIST Chemical Kinetics Database...
more
Follows
•
2
Expert Answers
•1
![]()
05/22/17
A glass of ice water, if left out all day, will eventually become room temperature. This happens because
science, Temperature
Follows
•
2
Expert Answers
•1
![]()
05/22/17
What property of antifreeze used to cool automobile engines make it a better product than water for the function
I am doing a project about water and that is one of the questions.
Follows
•
2
Expert Answers
•1
![]()
05/22/17
I am having problems comprehending word problems , can you help?
One number is 25% of another. The larger number is 12 more than the smaller. What are the numbers?
Follows
•
3
Expert Answers
•2
![]()
![]()
05/22/17
Science questions
Main idea. Describe how an acidic solution forms when HCI is mixed in water and how a basic solution forms when NaOh is mixed in water.Explain. What an idicator isWrite the formula of three...
more
Follows
•
3
Expert Answers
•1
![]()
05/22/17
Melisa and Eric pay 1458 for a trip. Melisa pays 358 up front. Eric pays 1100. How much does Melisa owe Eric so they both pay exactly half of total expenses?
Trip expenses = $1458, or $729 per person. Melisa paid $358 and Eric paid $1100 up front. What does Melisa owe Eric so they each pay exactly half of the expenses?
Follows
•
2
Expert Answers
•1
![]()
05/22/17
What is an alpha particle ?..
a)A helium nucleus
b)A hydrogen atom
c)An electron
d)A proton
Thank you for ur time!!
Follows
•
2
Expert Answers
•1
![]()
05/22/17
When twice a certain number is subtracted from 11, the result is 5. What is the number?
I need a full explanation please.
Follows
•
2
Expert Answers
•1
![]()
05/22/17
What is the rate of the following reaction (M/min)?
What is the rate of the following reaction (M/min) if the rate constant for the reaction is 1.50E-3 L•mol-1•min-1 and the concentration of each reactant is 0.0331 M. (The units for the rate...
more
Follows
•
2
Expert Answers
•1
![]()
05/21/17
Electroplating explanation
In electroplating, the copper metal terminal is ....
Follows
•
2
Expert Answers
•1
![]()
05/21/17
why do you need to analyze invert sugar in manufacturing syrup?
Why and how to control it?
Follows
•
2
Expert Answers
•1
![]()
05/20/17
I want to determine if there is a significant difference in mean water content between two patches of soil. Which test should I use?
I come across two problems. First, I monitored both patches at 10cm and 30cm over a two month period. Since the two patches are impacted by precipitation over time, I'm assuming that the samples...
more
Follows
•
2
Expert Answers
•1
![]()
05/20/17
Help me find my real rating
I am an Uber driver and try to understand my rating based on my last 500 trips :
Rating: 4.88 stars ( from a maximum of 5.00 stars )
Rated trips: 335 trips
5 star trips 93% => 312 trips
4...
more
Follows
•
2
Expert Answers
•1
![]()
05/19/17
calculate the average speed in (km/hr) of a car stuck in traffic that drives 12 km in 2 hours.
science question/problem
Follows
•
2
Expert Answers
•1
![]()
05/19/17
a certain type of bacteria doubles every 4 hours. If you started out with 37 bacteria, how many would you have after 12 hours?
a certain type of bacteria doubles every 4 hours. If you started out with 37 bacteria, how many would you have after 12 hours?
Follows
•
2
Expert Answers
•1
![]()
05/19/17
i have a cylinder that is 24" in diameter and 32" tall. it is filled with sand. what would the weigth of the sand be that is in the cylinder
it is a lawn roller and we need to know what the total weight is including the sand
Follows
•
2
Expert Answers
•1
![]()
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.