What is an apparatus with handle used as container for evaporating the liquid portion of a mixture? (it has 9 letters and the subject is Gen Chem Laboratory)
1. What is an apparatus with handle used as container for evaporating the liquid portion of a mixture? (it has 9 letters and the subject is Gen Chem Laboratory)
Answer:
Explanation:
What is an apparatus with handle used as container for evaporating the liquid portion of a mixture? (it has 9 letters and the subject is Gen Chem Laboratory)
2. Calculations (Show your solutionMass of NaHCOs(Mass of evaporating dish +NaHCO3)- (Mass of evaporating dish)gMass of NaCl (actual yield(Mass of evaporating dish +NaCl)- (Mass of evaporating dish)Mass of NaCl (theoretical yield)_NaHCO3 (s) + HCl(aq)NaCl(aq) + H₂O(l) +_CO2 (g)
I can certainly help you with those calculations!
To find the mass of NaHCO3:
Mass of NaHCO3 = (Mass of evaporating dish + NaHCO3) - (Mass of evaporating dish)
To find the mass of NaCl (actual yield):
Mass of NaCl (actual yield) = (Mass of evaporating dish + NaCl) - (Mass of evaporating dish)
To find the theoretical yield of NaCl, we need to balance the chemical equation and use stoichiometry. The balanced equation is:
NaHCO3 (s) + HCl (aq) → NaCl (aq) + CO2 (g) + H2O (l)
From the balanced equation, we can see that the molar ratio of NaHCO3 to NaCl is 1:1. This means that for every one mole of NaHCO3, we should get one mole of NaCl. We can use this information to find the theoretical yield of NaCl:
Theoretical yield of NaCl = (mass of NaHCO3 / molar mass of NaHCO3) x (molar mass of NaCl / 1 mol NaHCO3)
Once you have the theoretical yield of NaCl, you can calculate the percent yield by dividing the actual yield by the theoretical yield and multiplying by 100:
Percent yield = (actual yield / theoretical yield) x 100
I hope this helps! Let me know if you have any further questions.
3. what is the use of evaporating dish
Evaporating dishes are used to evaporate excess solvents - most commonly water - to produce aconcentrated solution or a solid precipitate of the dissolved substance. Most are made of porcelain or borosilicate glass.
4. get a candle evaporating dish or foil formed into a box old feeding bottle thongs and soft drinks for themselves into evaporating dish of what to gently hit it until most of the water has evaporated be careful not to burn it along the dish to call exam reserve the meaning in the dish describe the product life in the fall or dish where did the water go what made the water disappear what do you think is well in the evaporating dish or point where did the water go what with the water disappear
the water go in the clouds is the object is evaporated,the heat will heat the water so it will evaporate
5. what do you think was left on the evaporating dish
Answer:
Only the solute will remain in the evaporating dish.Explanation:
hope it helps:)
pa brainliest:(
6. .what remained in the dish after the water had evaporated ?
solid dish will still remain
7. Put a little of the HCI and sodium carbonate solution in an evaporating dish. With the use of crucible tongs, hold the dish over a burner flame. Evaporate the solution. Then taste the residue when it is no longer hot. What is the taste?
Answer:Methods of acid-base titration based on a sample dissolution exceeding normal acid, followed by back titration with a standard base is characterised in this experiment. Using bromophenol blue as an indicator, hydrochloric acid solutions were standardised against pure sodium carbonate. Here, we will study the titration of HCl and sodium carbonate in detail.
Aim
Determination of the strength of the diluted hydrochloric acid solution by titrating it against the normal sodium carbonate solution (M/10).
Theory
The hydrochloric acid solution can be titrated using a methyl orange indicator against the sodium carbonate solution. If a slightly acidic solution is titrated with a weak base, the endpoint is slightly acidic. The solution is slightly basic if a weak acid is titrated with a strong base since the salt produced is to a certain degree hydrolyzed. The reaction of sodium carbonate with HCl is given below.
Na2CO3(aq) + 2HCl(aq) → 2NaCl(aq) + CO2(g) + H2O(l)
CO32-(aq) + 2H+(aq) → CO2(g) + H2O(l)
These are the hydrochloric acid and sodium carbonate equations.
In acid-base titrations, the amount of the acid becomes chemically equivalent to the amount of base present. The solution becomes neutral in the event of a strong acid and a strong base titration of the solution.
Materials Required
Burette
Pipette
Conical flask
Burette stand
Funnel
Stirrer
White glazed tile
Measuring flask
Hydrochloric acid
Sodium carbonate
Methyl orange
Watch glass
CLICK THIS LINK TO LEARN MORE:https://www.vedantu.com/chemistry/titration-of-hydrochloric-acid-against-standard-sodium-carbonate
8. 1.)Physical sciences: involve the study of non-living things;_______________:involves the study of living things2.)Evaporating dish: used to heat and evaporate liquids; Thermometer:_______________.
Answer:
1.) biology2.as the querter evaporates it changes from liquid gas.why does evaporation use up heat from your skin.Explanation:
PA BRAINLEST PO SALAMAT9. it's a process of turning liquid into gas this involves the heating and boiling of the mixture until the water evaporate leaving the other component in the evaporating dish or pan? what is the answer
Answer:
Liquid to gas: Evaporation
Explanation:
Paki correct nalang po =)
10. Under the process of evaporation,what term is used to describe the white crystals left in the evaporating dish?
Answer:
the residue, is the correct answer
11. At home , evaporation happens in the kitchen. giveexample of a dish that you observe whileyourmother iso cooking where evaporation is needed?
boiling of water, cooking viand with soup
12. evaporating dish meaningPlease in your own opinion.
Answer:
it is a shallow usually lipped vessel often of porcelain used especially for concentrating solutions on a small scale by evaporation of the solvent
Explanation:
CORRECT ME IF I'M WRONG:)
13. describe what you see on the evaporating dish after the liquid has evaporated
Answer:
You can see the only left is the solid the water is evaporated
I wish I help you:)
14. GEN. CHEM. POhirap tih
ineng wg puro selpon aral aral den
Explanation:
kase puro ka kase selpon kaya di mo yan alam
15. get a candle evaporating dish or foil formed into a box old feeding bottle thongs and soft drinks for themselves into evaporating dish of what to gently hit it until most of the water has evaporated be careful not to burn it along the dish to call exam reserve the meaning in the dish describe the product life in the fall or dish where did the water go what made the water disappear what do you think is well in the evaporating dish or point where did the water go what with the water disappear
Answer:
the water go in the clouds is the object is evaporated,the heat will heat the water so it will evaporate
Explanation:
its my opinion -,-
16. What is the key to getting no leftovers chem?
Make ur own Decision
17. EN CHEM B Basic Chemistry
Answer:
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18. what do you think was left on the evaporating dish
Answer:
what I don't understand
19. what is the meaning of chem
Answer:
chemistry or chemical
Explanation:
Answer:
chemical? chemistry?
20. advanc3 chem patulongs
ano yung mga questions? drop na
21. Father of organic chem
Answer:
Friedrich Wohler, a German chemist is the father of organic chemistry
22. what is use of evaporating dish and the apparatus
Answer:
Evaporating Dish - Evaporation of solids and supernatant fluids
Apparatus - Collective equipment for specific purposes. Evaporating dish is an example of an apparatus
Answer:
dish is money fact off the tinapay
23. what do you call the solid that is left behind in the evaporating dish?
Answer:
Only the solute will remain in the evaporating dish
24. Is there anything deposited on the bottom of the evaporating dish when placed over a luminous flame?
Answer:
Soot forms as a result of incomplete combustion. To achieve incomplete combustion instead of complete combustion, the fuel must burn at a lower temperature with a slightly reduced supply of oxygen. When the fuel burns, it breaks into small particles that include soot, which settles out as a dark powdery deposit.
Answer:
heat which is caused by fire or flame
it evaporates Liquid And Heats up The Dish That's Why it Evaporates Depending On The Heat or Fire Is The Time Of Evaporation
Explanation:
pa brainly
25. A porcelein dish in which a solution maybe evaporated
we call that porcelain dish as evaporating dish
26. 15. Get a candle, evaporating dish or foil formed into a box, tongs, softdrinks. Pour 10 ml of the softdrink into the evaporating dish or foil . Gently heat it until most of the water has evaporated. What method of separating mixtures is describe in the situation? A. Winnowing B. Sieving C. Filtration D. Evaporation
the answer is 'D'
Explanation:
ty me later ☺️
27. mapuans spotted hi maam chem
Answer:
ha
Explanation:
thanks for the points lol ๏︿๏
28. What happens to the bottom of the evaporating dish?when the flame is non luminous flame.
Answer:
The sooty flame is due to the presence of carbon in the flame. Thus, aromatic hydrocarbons burn with a sooty or non-luminous flame.
29. what is the description and uses of evaporating dish
Answer:
Evaporating dishes are pieces of heat-tolerant laboratory glassware that are used to hold substances or liquids that are being melted or evaporated. They are typically made of borosilicate glass (as in Pyrex evaporating dishes) or porcelain (also called “china dishes”).
30. need help with my chem
SOLUTION:
Step 1: List the given values.
[tex]\begin{aligned} & P = \text{2.88 atm} \\ & T = 36.0^{\circ}\text{C} = \text{309.15 K} \\ & d = \text{7.71 g/L} \end{aligned}[/tex]
Step 2: Calculate the molecular mass of a gas.
[tex]\begin{aligned} MM & = \frac{dRT}{P} \\ & = \frac{(\text{7.71 g/L})\left(0.082057 \: \dfrac{\text{L}\cdot\text{atm}}{\text{mol}\cdot\text{K}}\right)(\text{309.15 K})}{\text{2.88 atm}} \\ & = \boxed{\text{67.9 g/mol}} \end{aligned}[/tex]
Hence, the molecular mass of the gas is 67.9 g/mol.
[tex]\\[/tex]
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