Water stores energy more efficiently than air under equal conditions.
It requires more energy to heat water than it does to heat air because water has a significantly larger heat capacity and specific heat than air. Compared to air, which has a specific heat of 1.005 J/g degreesC, water has a specific heat of 4.186 J/g degreesC.
Specific heat:
The amount of heat required to raise the temperature per unit mass is known as specific heat capacity. The heat in Joules required to increase the temperature of 1 gram of sample by 1 Kelvin or degree Celsius is often stated. Water is an excellent temperature regulator since it has a very high specific heat capacity.
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A mole of sodium chloride has mass 58.44 grams. You get that from adding the molar masses of sodium and chlorine, which are listed on the periodic table.
<span>58.44 g/mol * 4.40 mol = 257.1 or ≈ 257 grams with 3 significant figures</span>
Pretty sure it's 6 the atomic mass
Answer:
Graduated cylinder
Explanation:
A tall skinny cylinder used to measure volumes. It is generally a more accurate way to measure volume than a typical beaker or flask. Mortar and pestle - A mortar and pestle are used to crush and grind solids into a powder. The mortar is a bowl and the pestle is a small club-shaped tool.
Use indicators such as :
Indicator Color in acid Color in alkali
<em>methy lorange</em> red yellow
<em>phenolphthalein</em> colorless pink
