Question

The amount of anhydrous magnesium sulfate used is determined by?' a. seeing MgSO4 -7 H2O crystals...

The amount of anhydrous magnesium sulfate used is determined by?'

a. seeing MgSO4 -7 H2O crystals form

b. seeing magnesium sulfate dissolve

c. seeing excess anhydrous magnesium sulfate powder

d. the stoichiometry of magnesium sulfate to water forming MgSO4 -7 H2O

e. adding enough magnesium sulfate to cover the liquid

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Ans :- Option (d) i.e. "the stoichiometry of magnesium sulfate to water forming MgSO4 -7 H2O" is the correct answer.

Explanation :-

The amount of anhydrous magnesium sulfate i.e. MgSO4 used is determined by using stoichiometry of magnesium sulphate to water molecules forming MgSO4.7H2O as :

MgSO4(s) + 7H2O (l) -----> MgSO4.7H2O(s) (hydrated salt)

From this equation, 7 mole of H2O are absorbed by 1 mole of MgSO4 . Due to this stochiometric relationship we can find number of H2O molecules that are absorbed by MgSO4 .

Hence option (d) is the correct answer.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
We are doing a synthesis lab of isopentyl acetate (bannana oil) 1.When heating to form isoamyl...
We are doing a synthesis lab of isopentyl acetate (bannana oil) 1.When heating to form isoamyl acetate, the major reason why we did not use a thermometer to monitor the temperature was? Select one: a. A reflux cannot get hotter than the boiling point of the solvent. b. The water jacket prevents solvent from boiling out. c. Boiling chips prevent bumping. d. Nothing was being distilled out of the flask. e. We did not use a Claisen adpator to prevent...
Na2CO3 + 2HCl --------------> 2NaCl + H2O + CO2 7. Why did the reaction stop bubbling...
Na2CO3 + 2HCl --------------> 2NaCl + H2O + CO2 7. Why did the reaction stop bubbling after adding 7.00 mL of HCl solution? a. All of the NA2CO3 has been reacted and the additional HCL was just excess b. All of the HCl was being converted to water c. The HCl was in excess io the NA2CO3 under all conditions d. The NA2CO3 was in excess to the HCl under all conditions 8. Based on the balanced chemical equation, given...
Add 7.0 mL of N,N-dimethylaniline and 50 mL of dichloromethane (CH2Cl2, DCM) to a 400- mL...
Add 7.0 mL of N,N-dimethylaniline and 50 mL of dichloromethane (CH2Cl2, DCM) to a 400- mL beaker. Place the beaker in an ice-water bath. Add a magnetic stir bar and thermometer. Clamp the thermometer in place. Turn on the stirring motor. Add 1.1 equivalents of a solution (~1 M) of bromine (Br2) in DCM (already prepared in the hood) with a plastic disposable pipet. If the temperature of the solution rises above 25 °C stop adding bromine solution. Allow the...
1. What is the purpose of crystallization in an organic chemistry procedure? 2. Using the solubility...
1. What is the purpose of crystallization in an organic chemistry procedure? 2. Using the solubility data you found for benzoic acid, calculate the volume of water required to dissolve 1.0 g of benzoic acid at room temperature. Calculate the volume of boiling water needed to dissolve 1.0 g of benzoic acid. 3. Explain why a Büchner or Hirsh funnel is used to isolate the final crystallized product instead of stem funnel. 4. Explain when a mixture of solvents would...
What was the reason for the addition of H2O (10 ml), followed by gentle heating? Draw...
What was the reason for the addition of H2O (10 ml), followed by gentle heating? Draw a mechanism equation for the reaction taking place. Why was the water added slowly and through the condenser? Here is my experiment... Experimental procedure Warning: acetic anhydride is corrosive and a lachrymator. When carrying it across the lab, when it is inside a flask, please temporarily stopper the flask. Reaction Place salicylic acid (200 mg = 0.200g) into a dry 25ml round bottom flask...
a)How is it possible to determine if CaCO3 is Cl- free after synthesis? b)How can the...
a)How is it possible to determine if CaCO3 is Cl- free after synthesis? b)How can the Cl- ions be remove from CaCO3 after synthesis? I should answer the questions from the following experiment but if you know the answer and you are sure, yo do not need to read experiment. Please answer correctly because i hav no chance to make wrong :(((( Physical and Chemical Properties of Pure Substances Objective The aim of today’s experiment is to learn handling chemicals...
1. Given the following reaction     2C2H6(l)   +      7 O2(g)   ®           4CO2(g)      +     
1. Given the following reaction     2C2H6(l)   +      7 O2(g)   ®           4CO2(g)      +        6H2O(l) How many moles of water are produced when 4.5 moles of oxygen react?        (Hint: Use slides 5-8) 2. Given: I2     +    3 F2      ®     2 IF3 How many moles of I2 are needed to form 3 moles of IF3? How many moles of F2 are needed to form 10 moles of IF3? How many moles of I2 are needed to react with 3.5 moles of F2?        ...
When is a hypothesis considered scientific? a. when it is based on something other than observation...
When is a hypothesis considered scientific? a. when it is based on something other than observation b. when it can be tested and is refutable c. when it relies on anecdotal evidence d. when it relies on mystical explanations e. All hypotheses are considered scientific until experiments determine otherwise. 3. Of the following, which is the earliest step in the scientific process? a. generating a hypothesis b. analyzing data c. conducting an experiment d. drawing a conclusion e. developing a...
Below is the background info for the lab assignment. The 4 blank boxes are the questions...
Below is the background info for the lab assignment. The 4 blank boxes are the questions I would like answers too. The end point for the fine titration was 35.90 mL in the burette when the solution turned bright green again. And the coarse titration I got 35.36mL as the end point. 35.9 mL is exact in case you need that info. Thanks! Background In this lab, we will determine the amount of alcohol (ethanol), C2H5OH, in a commercial vodka...
1.) You will work with 0.10 M acetic acid and 17 M acetic acid in this...
1.) You will work with 0.10 M acetic acid and 17 M acetic acid in this experiment. What is the relationship between concentration and ionization? Explain the reason for this relationship 2.) Explain hydrolysis, i.e, what types of molecules undergo hydrolysis (be specific) and show equations for reactions of acid, base, and salt hydrolysis not used as examples in the introduction to this experiment 3.) In Part C: Hydrolysis of Salts, you will calibrate the pH probe prior to testing...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT