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inn [45]
3 years ago
12

What is the mass percent of barium in barium cyanide?

Chemistry
1 answer:
GaryK [48]3 years ago
7 0

Answer:

72.521%

Explanation:

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d1i1m1o1n [39]
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I think it’s 5
Explanation
4 0
3 years ago
What is the change of state involved in combustion of an alcohol and it’s entropy ?
Tanya [424]

Answer:

idkwhat is thr qution

Explanation:

4 0
3 years ago
What are the blanks the missing blanks?
mixas84 [53]

Answer:

Cr: Mass- 51.9961 u

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Hg: Moles- 200.59.

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6 0
3 years ago
Determine % yield if a student obtains 45 g of product in an experiment and the theoretical amount is determined to be 50 g. *
ycow [4]

Answer:

90%

Explanation:

Percentage yield = ?

Theoretical yield = 50g

Actual yield = 45g

To calculate the percentage yield of a compound, we'll have to use the formula of percentage yield which is the ratio between the actual yield to theoretical multiplied by 100

Percentage yield = (actual yield / theoretical yield) × 100

Percentage yield = (45 / 50) × 100

Percentage yield = 0.9 × 100

Percentage yield = 90%

The percentage yield of the substance is 90%

6 0
3 years ago
Which one would be expected to happen? If one of the buffers that contribute to pH stability in human blood is carbonic acid (H2
vredina [299]

Answer:

The correct answer is option C.

Explanation:

H_2CO3+H_2O\rightleftharpoons HCO_3^{-} + H_3O^+

On increasing the pH of the blood the hydronium ions concentration will decrease which will result in decrease in concentration of hydronium ions at the equilibrium state of hydrogen carbonate.

Le-Chatelier's principle:

This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

According to Le-Chatelier's principle , on decrease in a concentration of the product the equilibrium moves in forward correction to re-establish itself.

So, on increasing the pH, the hydronium ions concentration will decrease which results in disassociation of more hydrogen carbonate to maintain the pH of the blood.

Hence, the correct answer is option C.

5 0
3 years ago
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