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2 years ago

How many chiral carbon atoms does the monosaccharide altrose have?

Chemistry

1 answer:

lina2011 [118]2 years ago

6 0

4 In the open chain, 5 in the cyclic. Just like glucose.

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A certain mass of nitrogen gas occupies a volume of 7.56 L at a pressure of 5.08 atm. At what pressure will the volume of this s

faust18 [17]

Answer:

P₂ = 3.86 atm .

Explanation:

We assume that during this change , the temperature of the gas remains constant .

So the gas will obey Boyle's law .

P₁ V₁ = P₂V₂

5.08 x 7.56 = P₂ x 9.94

P₂ = 3.86 atm .

8 0

2 years ago

Consider the dissolution of ammonium nitrate. 1.25 g of amminum nitrate is dissolved in enough water to make 25.0 mL of solution

Mrac [35]

Answer:

$\Delta H=-0.02\ kJ$

Explanation:

The expression for the calculation of the enthalpy change of a process is shown below as:-

$\Delta H=m\times C\times \Delta T$

Where,

$\Delta H$ is the enthalpy change

m is the mass

C is the specific heat capacity

$\Delta T$ is the temperature change

Thus, given that:-

Mass of ammonium nitrate = 1.25 g

Specific heat = 4.18 J/g°C

$\Delta T=21.9-25.8\ ^0C=-3.9\ ^0C$

So,

$\Delta H=-1.25\times 4.18\times 3.9\ J=-20.3775\ J$

Negative sign signifies loss of heat.

Also, 1 J = 0.001 kJ

So,

$\Delta H=-0.02\ kJ$

5 0

3 years ago

Name a complex salt used in silver-playing.

kupik [55]

Answer :

Sodium Argentocyanide.

4 0

2 years ago

Read 2 more answers

Which mathematical relationship should you use to convert moles of a substance into grams?

pav-90 [236]

Answer:

Explanation:

The equation for this conversion is $Mass = \frac{Moles}{Mr}$

Mr is molar mass.

5 0

3 years ago

Which process is represented by the label a?

Levart [38]

Answer:

Sediment to sedimentary rock (and vice versa) is Compactation and Cementation.

Explanation:

This happens via Lithification, which is the compacting of sediments under pressure.

8 0

3 years ago