06/15/19

N2(g)+3H2(g) ->2NH3(g) how many liters of H2 are required to produce 47 miles of NH3
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06/15/19

A steel tank has a volume of 40.0L and is stored at 25C.When it is full it contains 3.3 moles of gas. What is the pressure in this tank when it’s full
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06/15/19

Calculate moles of H2 needed to form 2.25 moles HCI in the reaction H2+ Cl 2HCI.
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06/15/19

How does marijuana work
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06/14/19

How would I solve this

The student reacted 3.00 g salicylic acid (C7H6O3) with 4.00 g acetic anhydride (C4H6O3). The yield was 3.00 g aspirin. Calculate the theoretical yield and the percent yield for this... more
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06/13/19

What does the term "ketogenic" mean in biochemistry?
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06/13/19

Chemistry Help, exam tomorrow!!
how many grams of phosphorus chloride are produced from 93g of P4(s) and 213g of Cl2(g) assuming the reaction goes to completion? The balanced equation for the reaction is P4(s) + 6Cl2(g) ----... more
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06/13/19

A solution of concentration 7.6%(mm) contains 7.6g of solute per liter of solution. True or false
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06/12/19

I am giving a medical order of 14mEq of Potassium Chloride that is to be added to 1L bag of fluids. The Kc1 solution strength is 20 m Eq/10mL. How many mL will I have to add to the bag of fluid
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06/12/19

What is the pH of the solution after the addition of 1.0 x 10-3 moles of NaOH?
100 ml of 0.0150 M solution of benzoic acid (C6H5COOH). Ka(C6H5COOH) = 6.4 x 10-5.a) What is the pH of the benzoic acid solution?b) What is the pH of the solution after the addition of 1.0 x... more
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06/11/19

A wooden artifact from an ancient tomb contains 45% of the carbon-14 that is present in living trees. How long ago was the artifact made? (The half-life of carbon-14 is 5730 years.
A wooden artifact from an ancient tomb contains 45% of the carbon-14 that is present in living trees. How long ago was the artifact made? (The half-life of carbon-14 is 5730 years.
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06/11/19

For the following reaction, if O2 is used up at a rate of 1.45Mhr, what is the rate of formation of NO? 4NH3+5O2→4NO+6H2O
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06/11/19

In a titration, 15.94 mL of 0.512 M KOH solution is required to reach the endpoint of a 50.00-mL sample of a phosphoric acid, H3PO4, solution. Calculate the molarity of the H3PO4 solution.
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06/07/19

each tablet of a medication weighs 20 mg how many tablets are needed to make a days dosag of one gram
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06/07/19

there are 1.05 quarts in a liter how many mL are there in 5.0 quarts
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06/05/19

Calcium hydroxide reacts with sodium phosphate to produce calcium phosphate and sodium hydroxide. If 100 grams of calcium hydroxide reacts with 100 grams of sodium phosphate,
determine the amount of each chemical present when the reaction is completeGrams calcium hydroxide =?Grams of sodium phosphate=?Grams of calcium phosphate=?Grams of sodium hydroxide?Mass... more
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06/05/19

You perform a reaction in which 100.0 mL of 0.200 M lithium hydroxide is mixed into 200.0 mL of 0.150 nickel ii sulfate
A)Determine the limiting reactantB)Determine the theoretical yield of nickel ii hydroxideC)Determine the actual yield of nickel ii hydroxide given that the filter paper has a mass of 0.98 grams and... more
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06/05/19

What is the molarity of a strontium hydroxide solution if 56.4 mL is needed to neutralize 35.0 mL of 0.85 M perchloric acid?
please help with this question
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06/05/19

In a neutralization reaction 54.7 mL of 0.375 M sulfuric acid is required to completely react with 35.1 mL of sodium hydroxide. Determine the molarity of the sodium hydroxide needed

please help with this question
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06/05/19

Suppose you spill 45.0 mL of 0.150 M nitric acid on the lab table. You decide to neutralize it with .350 grams of calcium hydroxide
A) Find the limiting reactant: Was the acid completely neutralized?B)Determine the mass of calcium nitrate that would be recovered from the reaction?
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06/05/19

how many grams of aluminum hydroxide are needed to completely react with 75.0 mL of 0.175 M chloric acid
please help with this question
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06/05/19

STP problem pressure

A sample of Argon gas has a volume of 6.44 L at 55°C and 1.36 atm.What would be the volume of this gas sample at STP ? L.
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06/05/19

Pressure Problem
A helium-filled balloon has a volume of 872 L at 22.9°C and 752 mmHg. It is released and rise to an altitude of 6.17 km, where the pressure is 418 mmHg and the temperature is -18.1°C. The Volume of... more
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06/05/19

Pressure Problem

A Sample of Carbon Dioxide gas at a pressure of 0.933 atm and a temperature of 24.6°C, occupies a volume of 12.8 liters. If the gas is allowed to expand at a constant temperature to a volume of... more
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06/05/19

What is the difference between molarity and molality?
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