Question

Please, please ​answer and show steps for the questions! I will rate for you! A. How...

Please, please ​answer and show steps for the questions! I will rate for you!

A. How many grams of Na2CO3 are required to make 100.0 mL of 0.300M Na2CO3? (Show your work)

B. How many grams of CaCl2 are required to make 100.0 mL of 0.250M CaCl2 ? (Show your work)

C. A 0.510-g sample of calcium chloride reacts with excess sodium carbonate to give 0.366 g of calcium carbonate precipitate. What is the percent yield?

D. What would cause a percent yield of calcium carbonate that is greater than 100%? Explain.

E. A 0.995-g unknown mixture containing calcium chloride reacts to give 0.505 g of calcium carbonate precipitate. What is the percentage of calcium chloride in the unknown mixture?

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

post other question separately

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
Calculate the theoretical yield of the solid precipitate. Show your work. mass of CaCl2 =2.0 g...
Calculate the theoretical yield of the solid precipitate. Show your work. mass of CaCl2 =2.0 g Molar mass of CaCl2 = 110.98 g/mol Moles of CaCl2 = 2.0 g * 1 mol/110.98g = 0.018 mol Mass of K2Co3 =2.0 g Molar mass of K2Co3 = 138.205 g/mol Moles of K2Co3 =2.0 g * 1 mol/ 138.205g =0.0145 moles According to balanced equation 1mole of CaCl2 reacts with 1 mole of K2CO3 Thus, 0.018 moles of CaCl2 will react with =...
A---Which of the following solutions of strong electrolytes contains the largest total number of ions? Show...
A---Which of the following solutions of strong electrolytes contains the largest total number of ions? Show your calculations and explain your reasoning. 100.0 mL of 0.100 M sodium hydroxide 50.00 mL of 0.200 M barium chloride 75.0 mL of 0.150 M sodium phosphate B--35.0 mL of lead(II) nitrate solution reacts with excess sodium iodide solution to yield 0.628 g of precipitate. --Write a balanced equation for this reaction, and identify the precipitate. Indicate states of matter with parentheses and (aq)...
The reaction between the hydrochloric acid and the calcium carbonate is: 2 HCl (aq) + CaCO3...
The reaction between the hydrochloric acid and the calcium carbonate is: 2 HCl (aq) + CaCO3 (s) ---> CaCl2 (aq) + H2O (l) + CO2 (g) About 90 mL of water and 10.00 mL of 0.5023 M Hydrochloric acid solution was added to a 1.028 g paper sample. Following our procedure the mixture was stirred and then heated just to a boiling to expel the carbon dioxide. Titration of the excess HCl remaining in the mixture required 16.41 mL (corrected...
A weighed amount of sodium chloride is completely dissolved in a measured volume of 4.00 M...
A weighed amount of sodium chloride is completely dissolved in a measured volume of 4.00 M ammonia solution at ice temperature, and carbon dioxide is bubbled in. Assume that sodium bicarbonate is formed until the limiting reagent is entirely used up. The solubility of sodium bicarbonate in water at ice temperature is 0.75 mol per liter. Also assume that all the sodium bicarbonate precipitated is collected and converted quantitatively to sodium carbonate The mass of sodium chloride in (g) is...
Show all work and diagrams necessary. Please make sure you show how you derive any equations...
Show all work and diagrams necessary. Please make sure you show how you derive any equations you used!!! An initially resting 422 g car is dragged along a horizontal frictionless table by a massless cord. The cord is attached to a vertically hanging unknown mass by a frictionless massless pulley. Given that the car starts from rest, and moves 41 cm in 3.0 s, determine the unknown mass. Please give your solution in grams.
Inorganic questions--please show work and only answer if you truly understand it: Please show all work...
Inorganic questions--please show work and only answer if you truly understand it: Please show all work and answers on this page if at all possible. 5. Arrange the following solutions in order of decreasing freezing point, and explain your reasoning: 0.50 m HCl, 0.50 m glucose, 0.50 m acetic acid. 6. The alcohol content of hard liquor is normally given in terms of the “proof”, which is defined as twice the percentage by volume of ethanol (C2H­5OH) present. Calculate the...
Please answer all! For each of the following precipitation reactions, calculate how many grams of the...
Please answer all! For each of the following precipitation reactions, calculate how many grams of the first reactant are necessary to completely react with 17.5 g of the second reactant. Part A Na2CO3(aq)+CuCl2(aq)→CuCO3(s)+2NaCl(aq) m=____g Part B K2SO4(aq)+Sr(NO3)2(aq)→SrSO4(s)+2KNO3(aq) m=_____g _______________________ Predict the type of reaction (if any) that occurs between each of the following substances. Write balanced molecular equations for each. If no reaction occurs, write NOREACTION . Part A aqueous ammonium chloride and aqueous calcium hydroxide Express your answer as...
1. Consider the reaction between aqueous solution of potassium sulfide and iron (II) nitrate. (a.) Write...
1. Consider the reaction between aqueous solution of potassium sulfide and iron (II) nitrate. (a.) Write the balanced total molecular, total ionic, and net equations for this reaction. Total Molecular: Total Ionic equation: Spectator Ions: Net Ionic equation: Name of precipitate: (B.) Consider the balanced total molecular equation from part (a). 25.0 g of potassium sulfide reacts with 200 mL of 0.1 M iron (II) nitrate. (i) Which is the limiting reactant in this reaction? SHOW ALL YOUR WORK. (ii)...
Please answer parts A-K. Thank you! Part A How many mm^3 are in 2.20 ft^3 Part...
Please answer parts A-K. Thank you! Part A How many mm^3 are in 2.20 ft^3 Part B A lead ball has a mass of 25 pounds and a density of 11.4 g/cm^3. What is the volume of the ball in ml? Part C How many low dose 81 mg aspirin tablets can be made from 25.0 pounds of aspirin? Part D How much heat in kJ is needed to raise the temperature of 60.0 gal of water from 25.0°C to...
34.76 g of methane reacts in a container with 23.4 g of oxygen and 12.3 g...
34.76 g of methane reacts in a container with 23.4 g of oxygen and 12.3 g of carbon dioxide are produced. Which reactant is limiting? What is the theoretical yield of carbon dioxide? What is the percent yield of carbon dioxide?                        CH4 + O2 ⟶CO2 + H2O Identify the strongest intermolecular force present in each of the species: a.) CH4       b.) HF          c.) H                         d.) CHCl3 List ALL of the intermolecular forces present in...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT