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mrs_skeptik [129]
3 years ago
15

The final step in a descriptive investigation is to _____. A. see if your data support the hypothesis B. make your observations

and record them C. revise your procedure and start over again D. decide what information should be collected
Chemistry
2 answers:
Katen [24]3 years ago
8 0

A. see if your data support the hypothesis

Explanation:

The final step in a descriptive investigation is to see if your data supports the hypothesis. Like any other experiment, the hypothesis are usually tested when investigation studies are carried out.

  • Descriptive investigation employs the use of logic, creative and critical thinking.
  • Most times, notes are usually take following a well laid investigation plan and outline.
  • After different sources have been consulted and the study is drawn to a close the data and finding are analyzed to see how they compare to the hypothesis.

learn more:

Deductive reasoning brainly.com/question/5003338

#learnwithBrainly

Naddika [18.5K]3 years ago
4 0

Answer:

a have a good day

Explanation:

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If 10.0 grams of NaHCO3 is added to 10.0 g of HCl, determine the efficiency of baking soda as an antacid if 6.73 g of NaCl was p
Lapatulllka [165]

Answer:

percentage yield of NaCl = 96.64%

Explanation:

The reaction was between NaHCO3 and HCl .The chemical equation can be represented below:

NaHCO3 + HCl → NaCl + H2O + CO2 . The balance equation is

NaHCO3 + HCl → NaCl + H2O + CO2

The question ask us to calculate the percentage yield of NaCl.

The efficiency of NaHCO3 as an antacid , the limiting reactant is NaHCO3

as

1 mole of NaHCO3 produces 1 mole of NaCl

Therefore,

molar mass of NaHCO3 = 23 +1 + 12 + 48 = 84 g

molar mass of NaCl = 23 + 35.5 = 58.5 g

1 mole of NaHCO3 = 84 g

1 mole of NaCl  = 58.5 g

since 84 g of NaHCO3 produces 58.5 g of NaCl

10 g of NaHCO3 will produce ? grams of NaCl

cross multiply

Theoretical yield of NaCl = (10 × 58.5)/84

Theoretical yield of NaCl = 585/84

Theoretical yield of NaCl  = 6.9642857143 g

percentage yield of NaCl = actual yield/theoretical yield × 100

percentage yield of NaCl = 6.73/6.9642857143 × 100

percentage yield of NaCl = 673/6.9642857143

percentage yield of NaCl = 96.635897436%

percentage yield of NaCl = 96.64%

3 0
3 years ago
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Answer:

Check out libretexts chemistry

Explanation:

It's basically an online free textbook for lots of subjects

highly recommended

8 0
3 years ago
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