A physiological saline solution has a concentration of 0.90 % m/v NaCl. Which of these solutions is hypotonic to the saline solution?

A) 0.25 % m/v NaCl

B) 0.90 % m/v NaCl

C) 1.00 % m/v NaCl

D) 1. 90 % m/v NaCl

Is the polar head of a soap molecule more attracted to calcium or sodium ions?

Two unknown substance are in identical beakers. One is a solid and the other is a plasma. If you were given a scale to allow you to obtain the mass of the substance, and had to guess based on mass alone, you would say that the plasma is in the

True or false. A titration determines the concentration of only an acid by adding a solution of a known volume and concentration.

How many liters of oxygen (at stp) are required to form 10.5 g of h2o?

The mass of an object is described in what?

When is alpha particle emission most likely to occur? A. When the nucleus has more than 83 protons. B. When the ratio of neutrons to protons in the nucleus is too high to be stable. C. When the nucleus has a mass of more than 83 amu. D.

Researchers used a combustion method to analyze a compound used as an antiknock additive in gasoline. A 9.394 mg sample of the compound yielded 31.154 mg of carbon dioxide and 7.977 mg of water in the combustion.

The formula for binary ionic compound formed between cesium and fluorine

If the mass of a material is 76 grams and the volume of the material is 16 cm3, what would the density of the material be? g/cm3

Calculate the specific heat of a metallic element if 50.0 g of the metal need 314 joules of heat energy to raise the temperature from 25°C to 50°C.