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max2010maxim [7]

3 years ago

8

Suppose that you put a mass of 10 g of hydrochloric acid and 20 g of magnesium bicarbonate into the reaction; however, you only

weigh a product of 5g wet magnesium chloride. Is mass conserved in this reaction? Where would the other products have gone? Explain your reasoning.

1 answer:

madreJ [45]3 years ago

5 0

Answer:

It would be around 10 grams

Explanation:

6+4

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what is the specific heat of a substance if 300 j are required to raise the temperature of a 267-g sample by 12 degrees c

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Answer : The specific heat of the substance is 0.0936 J/g °C

Explanation :

The amount of heat Q can be calculated using following formula.

$Q = m \times C \times \bigtriangleup T$

Where Q is the amount of heat required = 300 J

m is the mass of the substance = 267 g

ΔT is the change in temperature = 12°C

C is the specific heat of the substance.

We want to solve for C, so the equation for Q is modified as follows.

$C = \frac{Q}{m \times \bigtriangleup T}$

Let us plug in the values in above equation.

$C = \frac{300J}{267g \times 12 C}$

$C = \frac{300J}{3204 g C}$

C = 0.0936 J/g °C

The specific heat of the substance is 0.0936 J/g°C

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