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MakcuM [25]
4 years ago
5

A scientist measures the weights of two different animals. One is 250 grams. The other is 330 grams. In milligrams, what is the

difference between the two weights of the animals?
Chemistry
1 answer:
Stolb23 [73]4 years ago
4 0
The way you would answer this is convert the grams to milligrams (g to mg) that would give you 330,000mg and 250,000mg then subtract them

Remember 1g = 1000mg  

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Cual es el calor específico de una sustancia que tiene una masa de 15 g y una capacidad térmica de 0.550 calC
mr Goodwill [35]

Answer:

Explanation:

Q = Ce . m .ΔT

Q : calor  

Ce : calor especifico

m: masa  

ΔT : variación de temperatura

capacidad térmica : 0,550 cal / °C

lectura :

por 1 °C se tiene 0,550 cal

por lo tanto  tenemos datos de la temperatura y del calor

pero no olvidar las unidades en el sistema internacional :

Ce : J / kg . K

J: joules

kg: kilogramo

K: kelvin  

pasar de gramos a kilogramos

pasar de calorías a joules

pasar de grado celsius a kelvin

1000g equivale a 1kg

15g     equivale a 0,015 kg

K= °C + 273 ⇒ formula para pasar de grado celsius a kelvin

K=  1 + 273

K= 274

1 caloría equivale a  4,184 joules

0,550 caloría  equivale a 2,3012 joules

ahora como todos los datos ya están en el S.I remplazamos en la formula

Q = Ce . m .ΔT

2,3012 = Ce . 0,015.274

Ce=0,5599 J / kg. K

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3 years ago
To measure the temperature of water in a chemistry expierment You should use the Fahrenheit scale. True or false
jeyben [28]
False. hope that helped
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