This lesson covers solved numerical problems on molarity, molality, mole fraction, and percentage concentrations to help you clearly understand solution concentration concepts in chemistry.

Abstract: This paper presents a “marginal equivalent” decomposition algorithm that partitions a linear programming problem into subproblems and coordinates their solutions by exchanging the ...

AIBE 20 Question Paper 2025: The All India Bar Examination (AIBE 20) 2025 was held successfully by the Bar Council of India (BCI) on November 30, 2025, across different designated exam centres in the ...

When it comes to hard problems, computer scientists seem to be stuck. Consider, for example, the notorious problem of finding the shortest round-trip route that passes through every city on a map ...

We're nearing the end of the year, which means streaming platforms are just getting started with their annual batch (read: Yuletide assault) of schmaltzy Christmas films, starring absolutely no one ...

WASHINGTON, Nov 7 (Reuters) - U.S. Transportation Secretary Sean Duffy warned Friday he could force airlines to cut up to 20% of flights if the government shutdown did not end, as U.S. airlines on ...

Armies of humanoid robots are poised to march into the world’s factories. But before they’re ready to turn a wrench, they must solve what Elon Musk calls “the hands problem.” Creating the mechanical ...

President Donald Trump said former ally Elon Musk has no choice but to return to the Republican Party after their highly public rift earlier this year. "I don't think he has a choice," Trump said on ...

Technology has delivered groundbreaking advances in recent decades—from life-saving medical treatments to the everyday convenience of carrying a powerful computer in a pocket. Yet despite the rapid ...

Creating opportunities to talk about math builds understanding and strengthens language development for all students—and particularly English language learners. The National Council of Teachers of ...