What is the pH when the hydrogen ion concentration is 7.0 * 10^-3 M?

A. 1.9

B. 2.2

C. 3

D. 3.3

You are performing an experiment in your lab. To compare with other experiments you need your results to be in moles. During your final step you collect your product and weigh it. You have 600 grams of Mg (H2PO4) 2 (magnesium dihydrogen phosphate).

Write the following number in standard notation: 8.66185 * 104.

The Canadian lynx is a large wild cat that lives in the cold regions of Canada. The snowshoe hare is the main prey species that is hunted by the Canadian lynx. The snowshoe hare eats grass, fern, and leaves.

The molar mass of water (H2O) is 18.02 g/mol. Yun needs 0.025 mol H2O for a laboratory experiment. She calculates that she needs 72.0 g H2O for the experiment. Yun's calculation was incorrect because she set up her unit conversion incorrectly.

What mass of methanol (CH3OH) is produced in the synthesis reaction when 45.8L of hydrogen gas reacts with carbon monoxide gas at STP?

Which of these is a property of bases? They produce hydrogen gas when reacted with metals. They turn litmus paper blue. They feel sticky. They taste sour.

After Pangaea broke up, North America became part of what?

What the different betwen observe and reference

How many moles are in 12.5 g of H2O

How do the atomic number and the number of protons relate to one another? The atomic number tells us the number of protons The atomic number is protons + neutrons They do not Electron Cloud