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4 years ago

Marvin records scientific data about Lake Superior. For which property has Marvin forgotten to use an SI unit of measurement?

Chemistry

2 answers:

Illusion [34]4 years ago

8 0

Answer: low temperature

Explanation:-

S.I or M.K.S is a system for defining physical units as meter, kilogram, second, ampere, kelvin or celcius, candela, and mole together with a set of prefixes to indicate multiplication or division by a power of ten for measuring length, mass, time , current, temperature and amount of substance respectively.

Given :

lake length = 563 kilometers = $563\times 10^3m$

High temperature = $76.5^0F$

Low temperature = $-6.3^0C$

annual precipitation =762 mm= $762\times 10^{-3}m$

Thus low temperature in units of Fahrenheit is not an S.I unit of measurement.

Yanka [14]4 years ago

7 0

The CORRECT answer is HIGH TEMPERATURE

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1 year ago

The ammonia solution that is purchased for a stockroom has a molarity of 15 M. Determine the volume of 15 M NH3(aq) that must be

lys-0071 [83]

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Explanation:

To calculate the volume of stock solution, we use the equation:

$M_1V_1=M_2V_2$

where,

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$M_2\text{ and }V_2$ are the molarity and volume of diluted ammonia solution

We are given:

$M_1=15M\\V_1=?mL\\M_2=1.46M\\V_2=500mL$

Putting values in above equation, we get:

$15\times V_1=1.46\times 500\\\\V_1=\frac{1.46\times 500}{15}=48.67mL$

Hence, the volume of stock solution of ammonia that is needed is 48.67 mL

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4 years ago

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